Data Quality Reports for Session: 101109 User: martin Completed: 08/15/2006


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D041214.1NSA/METTWR/C1 - All 10m level Data Missingnsamettwr4hC1.b1
D050120.2SGP/AOS/C1 - Failed RH sensorsgpaosC1.a0
D050124.1NSA/MMCR/C1 - Instrument failurensammcrmomC1.00, nsammcrmomC1.b1
D050218.4SGP/MFR10M/C1 - Dip in data at solar noonsgpmfr10mC1.00, sgpmfr10mC1.a0, sgpmfr10mC1.b1
D050321.1PYE/SKYRAD/M1 - Installation problemspyeskyrad20sM1.a0, pyeskyrad60sM1.b1
D050321.6PYE/TSI/M1 - MisalignmentpyetsimovieM1.a1, pyetsicldmaskM1.a1, pyetsiskycoverM1.b1, pyetsiskyimageM1.a1
D050401.1SGP/AOS/C1 - wet nephelometer out of servicesgpaosC1.a0
D050509.8SGP/MMCR/C1 - Missing or corrupt spectral data filessgpmmcrspecmomC1.a0
D050519.5SGP/OKM/X1 - Overview of Automated Data Quality - March 2005sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1
D050527.2NSA/METTWR/C1 - Incorrect Maximum for Precip Valuesnsamettwr4hC1.b1
D050527.3NSA/METTWR/C2 - Incorrect Maximum for Precip Valuesnsamettwr2hC2.b1
D050601.6PYE/MET/M1 - Reprocess: Incorrect Units Listed for Vapor Pressurepyesmet60sM1.b1
D050608.1NSA/MPL/C1 - Diode failurensamplC1.a1, nsamplpsC1.a0
D050620.1TWP/MMCR/C3 - Reprocess: CalibrationtwpmmcrcalC3.a1
D050722.1SGP/MWR/C1 - REPROCESS - Revised Retrieval CoefficientssgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgp1mwravgC1.c1, sgp5mwravgC1.c1,
sgpqmemwrcolC1.c1
D050725.12PYE/MWR/M1 - Reprocess - Revised Retrieval CoefficientspyemwrlosM1.b1, pyemwrtipM1.a1, pye5mwravgM1.c1, pyeqmemwrcolM1.c1
D050725.6SGP/MWR/E14 - Reprocess: Revised Retrieval CoefficientssgpmwrlosE14.a1, sgpmwrlosE14.b1, sgpmwrtipE14.a1, sgpqmemwrcolE14.c1
D050725.7NSA/MWR/C1 - Reprocess: Revised Calibration CoefficientsnsamwrlosC1.a1, nsamwrlosC1.b1, nsamwrtipC1.a1, nsa5mwravgC1.c1, nsaqmemwrcolC1.c1
D050725.8NSA/MWR/C2 - Reprocess: Revised Retrieval CoefficientsnsamwrlosC2.a1, nsamwrlosC2.b1, nsamwrtipC2.a1
D050808.2SGP/AERI/C1 - laser and cooler failuresgpaeri01C1.00, sgplblch1aeriC1.c1, sgplblch2aeriC1.c1, sgpqmeaerilblC1.c1,
sgpaerilbldiffC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerimeansC1.c1, sgpaerilblcloudsC1.c1,
sgpaerilbldifflsC1.c1, sgpaeriprof3feltzC1.c1
D050812.7SGP/THWAPS/B6 - Minor biases in humidity and saturation vapor pressuresgpthwapsB6.b1
D050927.1PYE/MWR/M1 - New software version (4.15) installedpyemwrlosM1.b1, pyemwrtipM1.a1
D050928.4NSA/MWR/C2 - New software version (4.15) installednsamwrlosC2.b1, nsamwrtipC2.a1
D051011.3SGP/MWR/E14 - New software version (4.15) installedsgpmwrlosE14.b1, sgpmwrtipE14.a1
D051025.2NSA/METTWR/C1 - Data 1-minute behindnsamettwr4hC1.b1
D051101.4NSA/METTWR/C1 - Reprocess: Wind direction data incorrectnsamettwr4hC1.b1
D051101.5SGP/SURTHREF/C1 - Temperature and RH probe failuresgpsurthrefC1.b1
D051112.10SGP/EBBR/E27 - metadata correctionssgp5ebbrE27.b1, sgp15ebbrE27.b1, sgp30ebbrE27.b1
D051112.5SGP/EBBR/E8 - metadata correctionssgp5ebbrE8.b1, sgp15ebbrE8.b1, sgp30ebbrE8.b1
D051202.2NSA/SKYRAD/C2 - Reprocess: Incorrect datalogger program affecting PIR1 and PIR2
downwelling longwave
nsaskyrad20sC2.a0, nsaskyrad60sC2.b1
D060112.2GEC/TOMS/X1 - Calibration ErrorgectomsX1.a1, gectomsreflX1.00, gectomsozoneX1.00, gectomsaerosolindexX1.00
D060220.3TWP/MMCR/C3 - MMCR Power Monitor failuretwpmmcrcalC3.a1, twpmmcrpowC3.a1
D060407.1NIM/MET/M1 - Software problemnimmetM1.b1
D060531.3SGP/ECOR/E10 - Reprocess: Wind Direction Incorrectsgp30ecorE10.b1
D060630.19SGP/SIRS/E11 - Reprocess: Longwave Calibration errorsgpsirsE11.b1
D060630.20SGP/SIRS/E12 - Reprocess: Longwave Calibration errorsgpsirsE12.b1
D060630.38NSA/SKYRAD/C2 - Reprocess: Longwave Calibration errornsaskyrad60sC2.b1
D060630.44PYE/GNDRAD/M1 - Reprocess: Longwave Calibration errorpyegndrad60sM1.b1
D060630.6SGP/IRT/C1 - Reprocess: Longwave Calibration errorsgpirt25mC1.b1
D060630.7SGP/BRS/C1 - Reprocess: Longwave Calibration errorsgpbrsC1.b1
D060706.1sgpwacrC1.b1
D060706.3nimwacrM1.b1
D980528.1SGP/AOS/C1 - Optical Particle Counter (PCASP-X) downsgpaosC1.a0, sgpaosauxC1.a0


DQRID : D041214.1
Start DateStart TimeEnd DateEnd Time
12/13/2004200204/26/20051902
Subject:
NSA/METTWR/C1 - All 10m level Data Missing
DataStreams:nsamettwr4hC1.b1
Description:
After prolonged power outage and many power spikes during the outage all data from the 10m 
level are missing.  Blown fuse on the power supply was replaced once the temperatures 
warmed enough to allow the lowering of the tower carriages.
Measurements:nsamettwr4hC1.b1:
  • 10m Average Calculated Dew Point(DP10M_AVG)
  • 10m Average QLI Reference Temperature(RefT10m_AVG)
  • Standard Deviation of 10m Calculated Vapor Pressure(VP10M_STD)
  • 10m Average Relative Humidity(RH10M_AVG)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)
  • 10m Average Calculated Vapor Pressure(VP10M_AVG)
  • 10m Average QLI Input Voltage(Volt10M_AVG)
  • Standard Deviation of 10m Vector Averaged Wind Direction(WD10M_SDU_WVT)
  • 10m Average Temperature(T10M_AVG)
  • Standard Deviation of 10m Relative Humidity(RH10M_STD)
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)
  • Standard Deviation of 10m Calculated Dew Point(DP10M_STD)
  • Standard Deviation of 10m Temperature(T10M_STD)


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DQRID : D050120.2
Start DateStart TimeEnd DateEnd Time
01/01/2004000005/01/20052359
Subject:
SGP/AOS/C1 - Failed RH sensor
DataStreams:sgpaosC1.a0
Description:
The RH sensor inside the humidified nephelometer began to slowly decline in value in the 
upper RH range beginning in early 2004 and becoming more noticable poor on 20041117. The 
sensor currently reaches a high RH value of about 60% when the actual RH is closer to 80%.

The sensor was replaced in the Spring of 2005, but the problem remained.  Effective 
1/1/2004, this sensor is not used to calculate scientific data and is therefore essentially 
abandoned in the field.  An end-date of 20050501 is being used as a placeholder.
Measurements:sgpaosC1.a0:
  • TSI High RH Neph. relative humidity(TSINephRHSamp_HRH)


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DQRID : D050124.1
Start DateStart TimeEnd DateEnd Time
01/23/2005153003/30/20051837
Subject:
NSA/MMCR/C1 - Instrument failure
DataStreams:nsammcrmomC1.00, nsammcrmomC1.b1
Description:
The Coherent Up/Down Converter failed.  The report from the manufacturer is that the SSB 
mixer died.
Measurements:nsammcrmomC1.00:
  • Raw data stream - documentation not supported(raw)

nsammcrmomC1.b1:
  • Time offset from base_time(base_time)
  • altitude above sea levelaltunits(alt)
  • Range Heights (center of radar sample volume)(heights)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • Peak tranmitted power, averaged over the course of the hour(PeakTransmittedPowerAvg)
  • Number of Gate Heights(NumHeights)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • Receiver Gain(RxGain)
  • Time offset from midnight of date of file. For CO data, this is identical to
    time_offset and is included for compatibility.(time)
  • TWT Status Code, details forthcoming from MMCR vendor(TWTStatusCode)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Current Receiver Number(ReceiverNumber)
  • Max. height of clutter removal(ClutterHeight)
  • Time associated with hourly averaged values(TimeAvg)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • radar mode char identifier(ModeDescription)
  • Inter-Pulse Period(InterPulsePeriod)
  • Receiver 290K Level(Rx290KLevel)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Number of Code Bits(NumCodeBits)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Number of Receiver(NumReceivers)
  • Signal to noise ratio(SignalToNoiseRatio)
  • Radar Constant(RadarConstant)
  • Data Quality Status(DataQualityStatus)
  • Time Spacing Between Gates(GateSpacing)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Receiver Cal Check Level(CalCheckLevel)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • north latitude for all the input platforms.(lat)
  • east longitude for all the input platforms.(lon)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Mean Noise Level(NoiseLevel)
  • Power (uncalibrated)(Power)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Number of Points in FFT(NumFFT)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • Receiver Mode(ReceiverMode)
  • Delay to First Range Gate(StartGateDelay)
  • Time offset of tweaks from base_time(time_offset)
  • Number of Spectral Averages(NumSpectralAverages)
  • Operating Set for this Record(ModeNum)
  • Pulse Width(PulseWidth)


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DQRID : D050218.4
Start DateStart TimeEnd DateEnd Time
09/01/2004000004/30/20050000
Subject:
SGP/MFR10M/C1 - Dip in data at solar noon
DataStreams:sgpmfr10mC1.00, sgpmfr10mC1.a0, sgpmfr10mC1.b1
Description:
On clear days there is a dip in the data (all channels) at solar noon that is more 
pronounced during the winter months.  While we currently don't know the cause of this dip, we 
believe it is related to reflections off the tower pole.  The working theory says at solar 
noon the north-south crossbar shades the tower pole cutting off reflections into the 
detector.  If true, this means data on either side of the dip are being enhanced by 
reflections and the data within the dip are actually "correct."  An experiment is being planned 
for next fall that will wrap the upper portion of the tower in a non-reflecting cloth.  
This should determine if the dip is related to reflections from the tower pole.
Measurements:sgpmfr10mC1.b1:
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 2(up_hemisp_narrowband_filter2)
  • Broadband Upwelling Hemispheric Irradiance, Uncalibrated Silicon Detector,
    GNDMFR(up_hemisp_broadband)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 1(up_hemisp_narrowband_filter1)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 3(up_hemisp_narrowband_filter3)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 6(up_hemisp_narrowband_filter6)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 4(up_hemisp_narrowband_filter4)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 5(up_hemisp_narrowband_filter5)

sgpmfr10mC1.a0:
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 3(up_hemisp_narrowband_filter3)
  • Broadband Upwelling Hemispheric Irradiance, Uncalibrated Silicon Detector,
    GNDMFR(up_hemisp_broadband)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 2(up_hemisp_narrowband_filter2)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 5(up_hemisp_narrowband_filter5)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 6(up_hemisp_narrowband_filter6)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 1(up_hemisp_narrowband_filter1)
  • 25 meter Upwelling Narrowband Hemispheric Irradiance, Filter 4(up_hemisp_narrowband_filter4)

sgpmfr10mC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)


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DQRID : D050321.1
Start DateStart TimeEnd DateEnd Time
02/14/2005000004/30/20052359
Subject:
PYE/SKYRAD/M1 - Installation problems
DataStreams:pyeskyrad20sM1.a0, pyeskyrad60sM1.b1
Description:
The installation of the SKYRAD instrument was not without problems.  During all or part of 
the time period specified the calibrations were incorrect or incomplete, the downwelling 
diffuse and direct normal leads were switched, and the shadowband was severely out of 
alignment.

Users are encouraged to use these data with caution only after a thorough quality review 
to be certain the data meet their requirements.
Measurements:pyeskyrad60sM1.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer2(inst_down_long_shaded2_dome_temp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp_shaded2)
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer2(inst_down_long_hemisp_shaded2_tp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp_shaded1)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer1(inst_down_long_shaded1_dome_temp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Standard
    Deviation(down_long_hemisp_shaded1_std)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer2(inst_down_long_shaded2_case_temp)
  • Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Standard
    Deviation(down_long_hemisp_shaded2_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer1(inst_down_long_shaded1_case_temp)
  • Sky/Cloud Infra-Red Temperature Standard Deviation(sky_ir_temp_std)
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer1(inst_down_long_hemisp_shaded1_tp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Sky/Cloud Infra-Red Temperature Minima(sky_ir_temp_min)
  • Sky/Cloud Infra-Red Temperature Maxima(sky_ir_temp_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Minima(down_long_hemisp_shaded1_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Minima(down_long_hemisp_shaded2_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Maxima(down_long_hemisp_shaded1_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Maxima(down_long_hemisp_shaded2_max)

pyeskyrad20sM1.a0:
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer1(inst_down_long_shaded1_dome_resist)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer2(inst_down_long_shaded2_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer2(inst_down_long_shaded2_case_resist)
  • Instantaneous Sky/Cloud Infrared(inst_sky_ir_signal)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer1(inst_down_long_shaded1_case_resist)
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer2(inst_down_long_hemisp_shaded2_tp)
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer1(inst_down_long_hemisp_shaded1_tp)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
    Voltage(inst_direct_normal)
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)


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DQRID : D050321.6
Start DateStart TimeEnd DateEnd Time
02/01/2005152504/07/20051715
Subject:
PYE/TSI/M1 - Misalignment
DataStreams:pyetsimovieM1.a1, pyetsicldmaskM1.a1, pyetsiskycoverM1.b1, pyetsiskyimageM1.a1
Description:
The TSI was not aligned with true north.
Measurements:pyetsiskyimageM1.a1:
  • JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

pyetsiskycoverM1.b1:
  • Pixel count: number opaque in horizon area(region.horizon.count.opaque)
  • Pixel count: number total in horizon area(region.horizon.count)
  • Pixel count: number total in sun circle(region.sun.count)
  • Pixel count: number opaque in sun circle(region.sun.count.opaque)
  • Pixel count: camera and sun strip mask(count.mask)
  • Pixel count: number total thin(count.thin)
  • Pixel count: number thin in zenith circle(region.zenith.count.thin)
  • Pixel count: number total between horizon and processed circle(count.sub.proczen)
  • Pixel count: number opaque in zenith circle(region.zenith.count.opaque)
  • Pixel count: number thin in horizon area(region.horizon.count.thin)
  • Pixel count: number thin in sun circle(region.sun.count.thin)
  • Pixel count: number total indeterminant(count.unknown)
  • Percentage thin cloud(percent.thin)
  • Pixel count: number total opaque(count.opaque)
  • Pixel count: number below horizon in image(count.sub.horz)
  • Pixel count: number total in zenith circle(region.zenith.count)
  • Pixel count: box, outside mirror area(count.box)
  • Pixel count: number total in processed circle(count.sky)
  • Percent opaque cloud(percent.opaque)

pyetsicldmaskM1.a1:
  • PNG data stream - documentation not supported(png)

pyetsimovieM1.a1:
  • (MPEG data stream - documentation not yet available)


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DQRID : D050401.1
Start DateStart TimeEnd DateEnd Time
03/04/2005000003/22/20051955
Subject:
SGP/AOS/C1 - wet nephelometer out of service
DataStreams:sgpaosC1.a0
Description:
The humidified nephelometer was removed and shipped back to CMDL to test and work on the 
relative humidity sensor inside the instrument.
Measurements:sgpaosC1.a0:
  • TSI High RH Neph. 700 nm total scat. coef. at 1 um(RedTScatCoef_1um_HRH)
  • TSI High RH Neph. 450 nm backscat. coef. at 1 um(BluBScatCoef_1um_HRH)
  • TSI High RH Neph. 550 nm total scat. coef. at 10 um(GrnTScatCoef_10um_HRH)
  • TSI High RH Neph. 450 nm total scat. coef. at 10 um(BluTScatCoef_10um_HRH)
  • Temp. downstream of humidograph(HGdownstream_T)
  • TSI High RH Neph. Pressure(TSINephPres_HRH)
  • TSI High RH Neph. 450 nm total scat. coef. at 1 um(BluTScatCoef_1um_HRH)
  • TSI High RH Neph. Sample Temperature(TSINephTSamp_HRH)
  • TSI High RH Neph. 700 nm backscat. coef. at 10 um(RedBScatCoef_10um_HRH)
  • RH upstream of humidograph(HGupstream_RH)
  • TSI High RH Neph. relative humidity(TSINephRHSamp_HRH)
  • TSI High RH Neph. 700 nm backscat. coef. at 1 um(RedBScatCoef_1um_HRH)
  • Temp. upstream of humidograph(HGupstream_T)
  • TSI High RH Neph. 550 nm backscat. coef. at 1 um(GrnBScatCoef_1um_HRH)
  • RH downstream of humidograph(HGdownstream_RH)
  • TSI High RH Neph. 550 nm backscat. coef. at 10 um(GrnBScatCoef_10um_HRH)
  • TSI High RH Neph. inlet temperature(TSINephTin_HRH)
  • TSI High RH Neph. 550 nm total scat. coef. at 1 um(GrnTScatCoef_1um_HRH)
  • TSI High RH Neph. 700 nm total scat. coef. at 10 um(RedTScatCoef_10um_HRH)
  • TSI High RH Neph. 450 nm backscat. coef. at 10 um(BluBScatCoef_10um_HRH)


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DQRID : D050509.8
Start DateStart TimeEnd DateEnd Time
10/22/2003000011/03/20042359
Subject:
SGP/MMCR/C1 - Missing or corrupt spectral data files
DataStreams:sgpmmcrspecmomC1.a0
Description:
Some or all of the SGP.C1 MMCR spectral data archived during this time period were 
corrupted due to problems with the media used to transfer the data.  Known corrupt files have 
been removed from the ARM Archive but users should be aware that additional corrupt data 
files may still be accessible.

Note: If you identify corrupt data files, please contact the ARM Archive at 
armarchive@ornl.gov or 865-241-4851.
Measurements:sgpmmcrspecmomC1.a0:
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Elevation(Elevation)
  • Receiver Mode(ReceiverMode)
  • Receiver Gain(RxGain)
  • Number of Receiver(NumReceivers)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Spectral Width(SpectralWidth)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • altitude above sea levelaltunits(alt)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Number of Points in FFT(NumFFT)
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • Spectral Data(Spectra)
  • Time offset from base_time(base_time)
  • MMCR Reflectivity(Reflectivity)
  • Time offset of tweaks from base_time(time_offset)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • north latitude for all the input platforms.(lat)
  • Inter-Pulse Period(InterPulsePeriod)
  • Range Heights (center of radar sample volume)(Heights)
  • Receiver 290K Level(Rx290KLevel)
  • Data Quality Status(DataQualityStatus)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Time Spacing Between Gates(GateSpacing)
  • Radar Constant(RadarConstant)
  • Signal to noise ratio(SignalToNoiseRatio)
  • Mean Noise Level(NoiseLevel)
  • east longitude for all the input platforms.(lon)
  • Max. height of clutter removal(ClutterHeight)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Azimuth(Azimuth)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Receiver Cal Check Level(CalCheckLevel)
  • radar mode char identifier(ModeDescription)
  • Number of Gate Heights(NumHeights)
  • Number of Spectral Averages(NumSpectralAverages)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver Cal Time Stamp(RxCalTimeStamp)


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DQRID : D050519.5
Start DateStart TimeEnd DateEnd Time
03/01/2005000003/31/20052359
Subject:
SGP/OKM/X1 - Overview of Automated Data Quality - March 2005
DataStreams:sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1
Description:
Below is a link to an overview from Janet Martinez, the Mesonet QA manager
of the automated quality assurance results for the March 2005
Oklahoma Mesonet Data.

 OKLAHOMA MESONET/ARS QUALITY ASSURANCE REPORT March 2005
Measurements:sgp15okmX1.b1:
  • soil temperature at 10cm beneath bare soil(tbare10)
  • soil temperature at 5 cm beneath bare soil(tbare5)
  • soil temperature at 30 cm beneath natural sod cover(tsoil30)
  • soil temperature at 10cm beneath natural sod cover(tsoil10)
  • soil temperature at 5 cm beneath natural sod cover(tsoil5)

sgp05okmX1.b1:
  • standard deviation of wind direction(wdir_sigma)
  • standard deviation of wind speed(wspd_sigma)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • air temperature at 1.5m(tdry_1_5m)
  • accumulated rainfall since 00GMT except at 00 GMT, the number given is the total
    accumulation for the past 24 hours(prec_amt)
  • vector average wind magnitude(wvec_10m)
  • average wind speed at 2m(wspd_2m)
  • solar radiation(srad)
  • vector average of wind direction measured at 10m(wdir_10m)
  • air temperature at 9m(tdry_9m)
  • average wind run (arithmetic average speed) at 10m(wspd_10m)
  • maximum 3-second wind speed within the 5-minute averaging period(wspd_max)
  • pressure at constant pressure surface(pres)

sgp05okmX1.a1:
  • vector average of wind direction measured at 10m(wdir_10m)
  • solar radiation(srad)
  • average wind run (arithmetic average speed) at 10m(wspd_10m)
  • pressure at constant pressure surface(pres)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • average wind speed at 2m(wspd_2m)
  • air temperature at 1.5m(tdry_1_5m)
  • accumulated rainfall since 00GMT except at 00 GMT, the number given is the total
    accumulation for the past 24 hours(prec_amt)
  • air temperature at 9m(tdry_9m)
  • standard deviation of wind direction(wdir_sigma)
  • maximum 3-second wind speed within the 5-minute averaging period(wspd_max)
  • standard deviation of wind speed(wspd_sigma)
  • vector average wind magnitude(wvec_10m)

sgp15okmX1.a1:
  • soil temperature at 5 cm beneath natural sod cover(tsoil5)
  • soil temperature at 10cm beneath bare soil(tbare10)
  • soil temperature at 30 cm beneath natural sod cover(tsoil30)
  • soil temperature at 5 cm beneath bare soil(tbare5)
  • soil temperature at 10cm beneath natural sod cover(tsoil10)


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DQRID : D050527.2
Start DateStart TimeEnd DateEnd Time
10/31/2003000005/26/20051014
Subject:
NSA/METTWR/C1 - Incorrect Maximum for Precip Values
DataStreams:nsamettwr4hC1.b1
Description:
The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are 
incorrect.  In communication with the manufacturer it has been found that the manual was in 
error.  The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 
999.99 mm/hr.
Measurements:nsamettwr4hC1.b1:
  • Precipitation Rate(PcpRate)
  • Cumulative Water Sum(CumH2O)


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DQRID : D050527.3
Start DateStart TimeEnd DateEnd Time
11/06/2003000005/26/20051014
Subject:
NSA/METTWR/C2 - Incorrect Maximum for Precip Values
DataStreams:nsamettwr2hC2.b1
Description:
The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are 
incorrect.  In communication with the manufacturer it has been found that the manual was in 
error.  The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 
999.99 mm/hr.
Measurements:nsamettwr2hC2.b1:
  • Precipitation Rate(PCPRate)
  • Cumulative Water Sum(CumH2O)


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DQRID : D050601.6
Start DateStart TimeEnd DateEnd Time
03/15/2005000005/19/20052359
Subject:
PYE/MET/M1 - Reprocess: Incorrect Units Listed for Vapor Pressure
DataStreams:pyesmet60sM1.b1
Description:
The netcdf header file incorrectly listed the units of Vapor Pressure as hPa when in fact 
they were kPa.
Measurements:pyesmet60sM1.b1:
  • Vapor pressure standard deviation(vappress_sd)
  • Vapor pressure mean(vappress_mean)


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DQRID : D050608.1
Start DateStart TimeEnd DateEnd Time
03/25/2005160004/01/20052310
Subject:
NSA/MPL/C1 - Diode failure
DataStreams:nsamplC1.a1, nsamplpsC1.a0
Description:
On 3/25, the energy monitor on the MPL dropped from 11 microjoules per second to 2 
microjoules per second.  We determined the problem was the diode; it reached the end of its 
lifetime. A replacement was sent.  Data quality returned to normal.
Measurements:nsamplpsC1.a0:
  • Energy output per pulse of transmitted laser beam at 523 nm (Doubled Nd-YLF)(energy_monitor)

nsamplC1.a1:
  • Energy output per pulse of transmitted laser beam at 523 nm (Doubled Nd-YLF)(energy_monitor)
  • Aerosol volume backscattering coefficient at 355 nm(backscatter)


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DQRID : D050620.1
Start DateStart TimeEnd DateEnd Time
02/01/2005010006/19/20052145
Subject:
TWP/MMCR/C3 - Reprocess: Calibration
DataStreams:twpmmcrcalC3.a1
Description:
The Solaris computer was changed out in late January.  The antenna parameters were not 
changed when this happened so that the SGP's antenna gain and beamwidths were used to 
calculate the radar constant.  This results in an underestimation of 4.69 dB in reflectivity.  

The difference in antenna gain is 57.2-52.73 dB or 4.47 dB.  Since the gain is squared in 
the denominator of the radar constant, this results in an error of 8.94 dB due to the 
antenna gain alone.

The difference in beamwidth is 0.19 to 0.31.  20log(.19/.31) = -4.25 dB.

Total reflectivity error = 8.94 dB - 4.25 dB = 4.69 dB
Measurements:twpmmcrcalC3.a1:
  • MMCR Reflectivity(Reflectivity)


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DQRID : D050722.1
Start DateStart TimeEnd DateEnd Time
04/16/2002200006/28/20052300
Subject:
SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficients
DataStreams:sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgp1mwravgC1.c1, sgp5mwravgC1.c1,
sgpqmemwrcolC1.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable 
water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were 
based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant 
(1957) liquid water absorption model.  

Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz 
(1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption 
model were developed.  The Rosenkranz water vapor absorption model resulted a 2 percent 
increase in PWV relative to the earlier Liebe and Layton model.  The Liebe liquid water 
absorption model decreased the LWP by 10% relative to the Grant model.  However, the 
increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was 
particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, 
pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN 
compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in 
Rosenkranz (1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals.  
Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which 
utilizes the HITRAN compilation for its spectroscopic parameters.  These new retrievals 
provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on 
Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for 
most purposes it will be sufficient to correct the data using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active as follows (BCR 456):
SGP/C1 (Lamont)     4/16/2002, 2000
SGP/B1 (Hillsboro)  4/12/2002, 1600
SGP/B4 (Vici)       4/15/2002, 2300
SGP/B5 (Morris)     4/15/2002, 2300
SGP/B6 (Purcell)    4/16/2002, 2200
SGP/E14(Lamont)     4/16/2002, 0000
NSA/C1 (Barrow)     4/25/2002, 1900 
NSA/C2 (Atqasuk)    4/18/2002, 1700
TWP/C1 (Manus)      5/04/2002, 0200
TWP/C2 (Nauru)      4/27/2002, 0600
TWP/C3 (Darwin)     inception

The MONORTM-based retrieval coefficients became active as follows (BCR 984):

SGP/C1 (Lamont)     6/28/2005, 2300
SGP/B1 (Hillsboro)  6/24/2005, 2100
SGP/B4 (Vici)       6/24/2005, 2100
SGP/B5 (Morris)     6/24/2005, 2100
SGP/B6 (Purcell)    6/24/2005, 1942
SGP/E14(Lamont)     6/28/2005, 2300
NSA/C1 (Barrow)     6/29/2005, 0000 
NSA/C2 (Atqasuk)    6/29/2005, 0000
TWP/C1 (Manus)      6/30/2005, 2100
TWP/C2 (Nauru)      6/30/2005, 2100
TWP/C3 (Darwin)     6/30/2005, 2100
PYE/M1 (Pt. Reyes)  4/08/2005, 1900**

** At Pt. Reyes, the original retrieval coefficients implemented in March 2005 were based 
on a version of the Rosenkranz model that had been modified to use the HITRAN half-width 
at 22 GHz and to be consistent with the water vapor continuum in MONORTM.  These 
retrievals yield nearly identical results to the MONORTM retrievals.  Therefore the Pt. Reyes 
data prior to 4/08/2005 may not require reprocessing.
Measurements:sgpmwrtipC1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgp5mwravgC1.c1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

sgpmwrlosC1.b1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

sgp1mwravgC1.c1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

sgpqmemwrcolC1.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgpmwrlosC1.a1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)


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DQRID : D050725.12
Start DateStart TimeEnd DateEnd Time
02/01/2005070004/08/20051900
Subject:
PYE/MWR/M1 - Reprocess - Revised Retrieval Coefficients
DataStreams:pyemwrlosM1.b1, pyemwrtipM1.a1, pye5mwravgM1.c1, pyeqmemwrcolM1.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive 
the precipitable water vapor (PWV) and liquid water path (LWP) from the 
MWR brightness temperatures were based on the Liebe and Layton (1987) 
water vapor and oxygen absorption model and the Grant (1957) liquid 
water absorption model.

Following the SHEBA experience, revised retrievals based on the more 
recent Rosenkranz (1998) water vapor and oxygen absorption models and 
the Liebe (1991) liquid waer absorption model were developed.  The 
Rosenkranz water vapor absorption model resulted a 2 percent increase 
in PWV relative to the earlier Liebe and Layton model.  The Liebe 
liquid water absorption model decreased the LWP by 10% relative to the 
Grant model.  However, the increased oxygen absorption caused a 
0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly 
significant for low LWP conditions (i.e. thin clouds encountered at 
SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and 
Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 
22 GHz water vapor line from the HITRAN compilation, which is 5 percent 
smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz 
(1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more 
accurate retrievals. Accordingly, revised MWR retrieval coefficients 
have been developed using MONORTM, which utilizes the HITRAN compilation 
for its spectroscopic parameters.  These new retrievals provide 3 
percent less PWV and 2.6 percent greater LWP than the previous 
retrievals based on Rosenkranz (1998).

At Point Reyes, the original coefficients implemented in March 2005
were based on a version of the Rosenkranz model that had been modified
to use the HITRAN half-width at 22 GHz and to be consistent with the
water vapor continuum in MONORTM.  These retrievals yield nearly
identical results to the MONORTM retrievals.  Therefore, the PT. Reyes
data prior to 20050408.1900 (when the MONORTM-based retrieval was
implemented) may NOT require reprocessing.
Measurements:pyeqmemwrcolM1.c1:
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)

pyemwrtipM1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

pyemwrlosM1.b1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

pye5mwravgM1.c1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)


Back To Table of Contents

DQRID : D050725.6
Start DateStart TimeEnd DateEnd Time
04/16/2002000006/28/20052300
Subject:
SGP/MWR/E14 - Reprocess: Revised Retrieval Coefficients
DataStreams:sgpmwrlosE14.a1, sgpmwrlosE14.b1, sgpmwrtipE14.a1, sgpqmemwrcolE14.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive 
the precipitable water vapor (PWV) and liquid water path (LWP) from the 
MWR brightness temperatures were based on the Liebe and Layton (1987) 
water vapor and oxygen absorption model and the Grant (1957) liquid 
water absorption model.

Following the SHEBA experience, revised retrievals based on the more 
recent Rosenkranz (1998) water vapor and oxygen absorption models and 
the Liebe (1991) liquid waer absorption model were developed.  The 
Rosenkranz water vapor absorption model resulted a 2 percent increase 
in PWV relative to the earlier Liebe and Layton model.  The Liebe 
liquid water absorption model decreased the LWP by 10% relative to the 
Grant model.  However, the increased oxygen absorption caused a 
0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly 
significant for low LWP conditions (i.e. thin clouds encountered at 
SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and 
Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 
22 GHz water vapor line from the HITRAN compilation, which is 5 percent 
smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz 
(1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more 
accurate retrievals. Accordingly, revised MWR retrieval coefficients 
have been developed using MONORTM, which utilizes the HITRAN compilation 
for its spectroscopic parameters.  These new retrievals provide 3 
percent less PWV and 2.6 percent greater LWP than the previous 
retrievals based on Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based 
retrievals, for most purposes it will be sufficient to correct the data 
using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at SGP.E14 
20020416.0000.  The MONORTM-based retrieval coefficients became active 
at SGP.E14 20050628.2300.

Note: a reprocessing effort is already underway to apply the 
Rosenkranz-based retrieval coefficients to all MWR prior to April 
2002.  An additional reprocessing task will be undertaken to apply 
the MONORTM retrieval to all MWR data when the first is completed. 
Read reprocessing comments in the netcdf file header carefully to 
ensure you are aware which retrieval is in play.
Measurements:sgpmwrlosE14.a1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

sgpmwrtipE14.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpmwrlosE14.b1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

sgpqmemwrcolE14.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)


Back To Table of Contents

DQRID : D050725.7
Start DateStart TimeEnd DateEnd Time
04/25/2002190006/29/20050000
Subject:
NSA/MWR/C1 - Reprocess: Revised Calibration Coefficients
DataStreams:nsamwrlosC1.a1, nsamwrlosC1.b1, nsamwrtipC1.a1, nsa5mwravgC1.c1, nsaqmemwrcolC1.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive 
the precipitable water vapor (PWV) and liquid water path (LWP) from the 
MWR brightness temperatures were based on the Liebe and Layton (1987) 
water vapor and oxygen absorption model and the Grant (1957) liquid 
water absorption model.

Following the SHEBA experience, revised retrievals based on the more 
recent Rosenkranz (1998) water vapor and oxygen absorption models and 
the Liebe (1991) liquid waer absorption model were developed.  The 
Rosenkranz water vapor absorption model resulted a 2 percent increase 
in PWV relative to the earlier Liebe and Layton model.  The Liebe 
liquid water absorption model decreased the LWP by 10% relative to the 
Grant model.  However, the increased oxygen absorption caused a 
0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly 
significant for low LWP conditions (i.e. thin clouds encountered at 
SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and 
Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 
22 GHz water vapor line from the HITRAN compilation, which is 5 percent 
smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz 
(1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more 
accurate retrievals. Accordingly, revised MWR retrieval coefficients 
have been developed using MONORTM, which utilizes the HITRAN compilation 
for its spectroscopic parameters.  These new retrievals provide 3 
percent less PWV and 2.6 percent greater LWP than the previous 
retrievals based on Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based 
retrievals, for most purposes it will be sufficient to correct the data 
using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at NSA.C1 
20020425.1900.  The MONORTM-based retrieval coefficients became active 
at NSA.C1 20050629.0000.

Note: a reprocessing effort is already underway to apply the 
Rosenkranz-based retrieval coefficients to all MWR prior to April 
2002.  An additional reprocessing task will be undertaken to apply 
the MONORTM retrieval to all MWR data when the first is completed. 
Read reprocessing comments in the netcdf file header carefully to 
ensure you are aware which retrieval is in play.
Measurements:nsamwrlosC1.a1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

nsa5mwravgC1.c1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

nsaqmemwrcolC1.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

nsamwrlosC1.b1:
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)

nsamwrtipC1.a1:
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)


Back To Table of Contents

DQRID : D050725.8
Start DateStart TimeEnd DateEnd Time
04/18/2002170006/29/20050000
Subject:
NSA/MWR/C2 - Reprocess: Revised Retrieval Coefficients
DataStreams:nsamwrlosC2.a1, nsamwrlosC2.b1, nsamwrtipC2.a1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive 
the precipitable water vapor (PWV) and liquid water path (LWP) from the 
MWR brightness temperatures were based on the Liebe and Layton (1987) 
water vapor and oxygen absorption model and the Grant (1957) liquid 
water absorption model.

Following the SHEBA experience, revised retrievals based on the more 
recent Rosenkranz (1998) water vapor and oxygen absorption models and 
the Liebe (1991) liquid waer absorption model were developed.  The 
Rosenkranz water vapor absorption model resulted a 2 percent increase 
in PWV relative to the earlier Liebe and Layton model.  The Liebe 
liquid water absorption model decreased the LWP by 10% relative to the 
Grant model.  However, the increased oxygen absorption caused a 
0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly 
significant for low LWP conditions (i.e. thin clouds encountered at 
SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and 
Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 
22 GHz water vapor line from the HITRAN compilation, which is 5 percent 
smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz 
(1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more 
accurate retrievals. Accordingly, revised MWR retrieval coefficients 
have been developed using MONORTM, which utilizes the HITRAN compilation 
for its spectroscopic parameters.  These new retrievals provide 3 
percent less PWV and 2.6 percent greater LWP than the previous 
retrievals based on Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based 
retrievals, for most purposes it will be sufficient to correct the data 
using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at NSA.C2 
20020418.1700.  The MONORTM-based retrieval coefficients became active 
at NSA.C2 20050629.0000.

Note: a reprocessing effort is already underway to apply the 
Rosenkranz-based retrieval coefficients to all MWR prior to April 
2002.  An additional reprocessing task will be undertaken to apply 
the MONORTM retrieval to all MWR data when the first is completed. 
Read reprocessing comments in the netcdf file header carefully to 
ensure you are aware which retrieval is in play.
Measurements:nsamwrlosC2.a1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

nsamwrlosC2.b1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

nsamwrtipC2.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)


Back To Table of Contents

DQRID : D050808.2
Start DateStart TimeEnd DateEnd Time
01/08/2005181201/27/20061845
Subject:
SGP/AERI/C1 - laser and cooler failure
DataStreams:sgpaeri01C1.00, sgplblch1aeriC1.c1, sgplblch2aeriC1.c1, sgpqmeaerilblC1.c1,
sgpaerilbldiffC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerimeansC1.c1, sgpaerilblcloudsC1.c1,
sgpaerilbldifflsC1.c1, sgpaeriprof3feltzC1.c1
Description:
On January 8, 2005 the laser failed on the AERI. After it was repaired and during 
calibration, the cryogenic cooler and its spare also failed. The instrument has been off-line 
since the failure.
Measurements:sgpaerilbldiffC1.c1:
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    that are not saturated(integ_resid_ch_unsat)
  • hatch_open_is_true and hatch_closed_is_false(valid_aeri_data)
  • Time offset from base_time(base_time)
  • Sequential data channel number. See channel_explanation global attribute.(channel)
  • Time offset of tweaks from base_time(time_offset)
  • east longitude for all the input platforms.(lon)
  • Logical flag indicating if the AERI sample was used to derive the surface
    temperature value for driving the model(surface_temp_from_aeri_used)
  • altitude above sea levelaltunits(alt)
  • Retrieved sample time (current sample time) minus sonde launch time(sonde_offset_time)
  • wavenumbers for spectral differences(wavenumber)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral windows, ch1:[1142.20,1147.03] & ch2:[2506.20,2511.02](mean_AERI_BT)
  • north latitude for all the input platforms.(lat)
  • AERI radiance spectra minus LBLRTM radiance spectra(rad_difference)
  • Indicator of large residuals in channel 1 transparent region(transparent_region_dq_flag)

sgpqmeaerimeansC1.c1:
  • For each bin, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_bin)
  • For each channel, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_ch)
  • Sequential data channel number. See channel_explanation global attribute.(channel)
  • Physical process number used as a coordinate in the process dimension(process)
  • Time offset from base_time(base_time)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_ch_pro)
  • The average of mean_hour_rad computed for the set of wavenumbers within a
    particular bin for a fixed physical process as given in the spectral mapping
    function listed i(mean_rad_bin_pro)
  • The standard deviation of the AERI spectral radiances about the hourly averaged
    mean(sdev_hour_rad)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_all)
  • east longitude for all the input platforms.(lon)
  • wavenumbers for hourly averaged spectral radiances(wavenum)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_bin_pro)
  • north latitude for all the input platforms.(lat)
  • The average of mean_hour_rad computed over the entire wavenumber spectrum
    between 520.2368 and 3020.1699(mean_rad_all)
  • The average of mean_hour_rad computed for the wavenumbers within each bin
    (sub-band)(mean_rad_bin)
  • The average of mean_hour_rad computed over the wavenumbers for each of the AERI
    channels(mean_rad_ch)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_pro)
  • The standard deviation of mean_hour_rad about mean_rad_bin for the wavenumbers
    within each bin (sub-band)(sdev_rad_bin)
  • The average of mean_hour_rad computed for the wavenumbers which are mapped to a
    particular physical process as given in the spectral mapping functions
    listed in the global(mean_rad_pro)
  • For each bin, this gives the total number of active physical processes out of
    the 12 defined for the process field (NOTE 0-indeterminate is counted)(nactive_pro_bin)
  • Bin number for wavenumber sub-bands used as a coordinate in the bin dimension(bin)
  • hatch_open_is_true and hatch_closed_is_false(valid_aeri_data)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_bin)
  • The standard deviation of mean_hour_rad about mean_rad over the entire
    wavenumber spectrum between 520.2368 and 3020.1699(sdev_rad_all)
  • altitude above sea levelaltunits(alt)
  • Standard deviation of mean_hour_rad about mean_rad_ch_pro for wavenumbers within
    each channel and physical process category that are not saturated(sdev_rad_ch_pro)
  • The average of mean_hour_rad computed for the set of wavenumbers within a
    particular channel for a fixed physical process as given in the spectral mapping
    function liste(mean_rad_ch_pro)
  • Number of wavenumber elements over which the calculations are performed(nobs_rad_ch)
  • The standard deviation of mean_hour_rad about mean_rad_bin_pro for the set of
    wavenumbers within a particular bin for a fixed physical process(sdev_rad_bin_pro)
  • Time offset of tweaks from base_time(time_offset)
  • The number of spectra over which the hourly calculations are performed(nobs_hour_rad)
  • For each channel, this gives the total number of active physical processes out
    of the 12 defined for the process field(NOTE 0-indeterminate is counted)(nactive_pro_ch)
  • The standard deviation of mean_hour_rad about mean_rad_pro for the set of
    wavenumbers which are mapped to a particular physical process(sdev_rad_pro)
  • The AERI spectral radiances averaged over an hour window centered on the time of
    the LBLRTM rundeck(mean_hour_rad)
  • The standard deviation of mean_hour_rad about mean_rad_ch computed over the
    wavenumbers for each of the AERI channels(sdev_rad_ch)

sgpaeri01C1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

sgplblch1aeriC1.c1:
  • Maximum height reached by this sonde launch(max_sonde_alt)
  • Surface temperature from wavenumber average of spectral radiance at mean
    wavenumber 2295.021 cm-1(wisc_summary_T_ch2)
  • Surface temperature from wavenumber average of spectral radiance at mean
    wavenumber 677.417 cm-1(wisc_summary_T_ch1)
  • column ozone(ozone)
  • wavenumbers for mean radiance spectra(wnum)
  • Time offset from base_time(base_time)
  • LBLRTM Model radiance spectra(model_rad)
  • Surface temperature as reported by sonde(sonde_surface_T)
  • Serial number for the sonde used at this time.(sonde_serial_number)
  • Time offset of tweaks from base_time(time_offset)
  • north latitude for all the input platforms.(lat)
  • east longitude for all the input platforms.(lon)
  • altitude above sea levelaltunits(alt)
  • Sonde launch time minus surface temperature time(surface_time_offset)

sgpqmeaerilbllsC1.c1:
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each channel that are not saturated(integ_abs_resid_ch_unsat)
  • Sequential data channel number. See channel_explanation global attribute.(channel)
  • Time offset of tweaks from base_time(time_offset)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each channel and physical process category that are not saturated(mean_abs_resid_ch_pro_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each channel that
    are not saturated(mean_resid_ch_unsat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each physical process category that are not saturated(sdev_resid_pro_unsat)
  • Mean Temperature from SMOS(SMOS_temp)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each channel that are not saturated(mean_abs_resid_ch_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each bin and
    physical process category that are not saturated(mean_resid_bin_pro_unsat)
  • Precipitation Total from SMOS(SMOS_precip)
  • Integral of the AERI measured radiances over wavenumbers within each bin and
    physical process category that are not saturated(integ_rad_bin_pro_unsat)
  • Number of wavenumbers values over which the integral is calculated(nobs_sat)
  • Number of wavenumbers over which the integral is calculated(nobs_pro_all)
  • Integral of the radiances over wavenumbers within each channel and physical
    process category where the Planck function is used for saturated wavenumbers and
    AERI me(integ_rad_ch_pro_all)
  • Integral of the AERI measured radiances over wavenumbers within each channel
    that are not saturated(integ_rad_ch_unsat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each physical
    process category that are not saturated(integ_resid_pro_unsat)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each physical process category that are not saturated(integ_abs_resid_pro_unsat)
  • Difference of brightness temperatures in the ch1 window region, [1142.20,
    1147.03] wavenumbers, which is an indicator of the atmospheric variability(meas_atm_var_T1)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each channel that are not saturated(sdev_resid_ch_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers between 550.1299 and
    3020.1699 that are not saturated(mean_resid_unsat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each bin and
    physical process category that are not saturated(integ_resid_bin_pro_unsat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each bin that are not saturated(sdev_resid_bin_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_ch_unsat)
  • Surface temps used in the LBLRTM runs -- Univ of WISC selected bands(model_surfT)
  • north latitude for all the input platforms.(lat)
  • Standard Deviation of Temperature from SMOS(SMOS_sd_temp)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each bin and physical process category that are not saturated(integ_abs_resid_bin_pro_unsat)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each bin that are not saturated(integ_abs_resid_bin_unsat)
  • Integral of the AERI measured radiances over wavenumbers within each physical
    process category that are not saturated(integ_rad_pro_unsat)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers between 550.1299 and 3020.1699 that are not saturated(integ_abs_resid_unsat)
  • Standard Deviation of Vapor Pressure from SMOS(SMOS_sd_vap_pres)
  • Number of wavenumbers over which the integral is calculated(nobs_bin_all)
  • Standard deviation of the average radiances in the 985-990 and 2510-2515
    wavenumber windows during the AERI dwell time(aeri_dwell_atm_var)
  • For each channel, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_ch)
  • Time offset from base_time(base_time)
  • Integral of the radiances over wavenumbers within each bin and physical process
    category where the Planck function is used for saturated wavenumbers and
    AERI measu(integ_rad_bin_pro_all)
  • Standard Deviation of Relative Humidity from SMOS(SMOS_sd_rh)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each bin that
    are not saturated(integ_resid_bin_unsat)
  • AERI sample time minus SMOS sample time(SMOS_offset_time)
  • Retrieved sample time (current sample time) minus sonde launch time(sonde_offset_time)
  • Number of wavenumbers values over which the integral is calculated(nobs_ch_sat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each channel and
    physical process category that are not saturated(mean_resid_ch_pro_unsat)
  • Logical flag indicating if the AERI sample was used to derive the surface
    temperature value for driving the model(surface_temp_from_aeri_used)
  • Standard Deviation of Barometric Pressure from SMOS(SMOS_sd_bar_pres)
  • Integral of the AERI measured radiances over wavenumbers within each channel and
    physical process category that are not saturated(integ_rad_ch_pro_unsat)
  • For each bin, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_bin)
  • Integral of the radiances over wavenumbers within each physical process category
    where the Planck function is used for saturated wavenumbers and AERI
    measured radiance(integ_rad_pro_all)
  • For each bin, this gives the total number of active physical processes out of
    the 12 defined for the process field (NOTE 0-indeterminate is counted)(nactive_pro_bin)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each channel and physical process category that are not saturated(integ_abs_resid_ch_pro_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each channel that are saturated(integ_rad_ch_sat)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each bin and physical process category that are not saturated(mean_abs_resid_bin_pro_unsat)
  • Integral of the radiances over wavenumbers within each channel where the Planck
    function is used for saturated wavenumbers and AERI measured radiance is
    used otherwise(integ_rad_ch_all)
  • Integral of the AERI measured radiances over wavenumbers within each bin that
    are not saturated(integ_rad_bin_unsat)
  • Number of wavenumbers values over which the integral is calculated(nobs_bin_pro_sat)
  • Number of wavenumbers values over which the integral is calculated(nobs_bin_sat)
  • Number of wavenumbers over which the integral is calculated(nobs_ch_all)
  • Bin number for wavenumber sub-bands used as a coordinate in the bin dimension(bin)
  • Mean Barometeric Pressure from SMOS(SMOS_bar_pres)
  • Physical process number used as a coordinate in the process dimension(process)
  • Number of wavenumbers values over which the integral is calculated(nobs_pro_sat)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral windows, ch1:[1142.20,1147.03] & ch2:[2506.20,2511.02](mean_AERI_BT)
  • For each channel, this gives the total number of active physical processes out
    of the 12 defined for the process field(NOTE 0-indeterminate is counted)(nactive_pro_ch)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each bin and physical process category that are not saturated(sdev_resid_bin_pro_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each physical
    process category that are not saturated(mean_resid_pro_unsat)
  • Integral of the radiances over wavenumbers between 550.1299 and 3020.1699 where
    the Planck function is used for saturated wavenumbers and AERI measured
    radiance is used ot(integ_rad_all)
  • Number of wavenumbers over which the integral is calculated(nobs_ch_pro_all)
  • Number of wavenumbers values over which the integral is calculated(nobs_ch_pro_sat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers between 550.1299 and
    3020.1699 that are not saturated(integ_resid_unsat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    and physical process category that are not saturated(integ_resid_ch_pro_unsat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    that are not saturated(integ_resid_ch_unsat)
  • Measure of atmospheric variability over 705-798 cm-1 (bin 3)(meas_atm_var_bin3)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each bin that are
    not saturated(mean_resid_bin_unsat)
  • east longitude for all the input platforms.(lon)
  • Mean Relative Humidity from SMOS(SMOS_rh)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    between 550.1299 and 3020.1699 that are not saturated(mean_abs_resid_unsat)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each physical process category that are not saturated(mean_abs_resid_pro_unsat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers between 550.1299 and 3020.1699 that are not saturated(sdev_resid_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_pro_unsat)
  • Number of wavenumbers over which the integral is calculated(nobs_bin_pro_all)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_ch_pro_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each bin and physical process category that are saturated(integ_rad_bin_pro_sat)
  • Integral of the radiances over wavenumbers within each bin where the Planck
    function is used for saturated wavenumbers and AERI measured radiance is used
    otherwise(integ_rad_bin_all)
  • Integral of the AERI measured radiances over wavenumbers between 550.1299 and
    3020.1699 that are not saturated(integ_rad_unsat)
  • Indicator of large residuals in channel 1 transparent region(transparent_region_dq_flag)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each bin that are saturated(integ_rad_bin_sat)
  • altitude above sea levelaltunits(alt)
  • Mean Vapor Pressure from SMOS(SMOS_vap_pres)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each channel and physical process category that are not
    saturated(sdev_resid_ch_pro_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    between 550.1299 and 3020.1699 that are saturated(integ_rad_sat)
  • Number of wavenumbers over which the integral is calculated(nobs_all)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_bin_pro_unsat)
  • First temperature reported by the sonde(sonde_surfT)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each channel and physical process category that are not saturated(integ_rad_ch_pro_sat)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each bin that are not saturated(mean_abs_resid_bin_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_bin_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each physical process category that are saturated(integ_rad_pro_sat)

sgpaerilbldifflsC1.c1:
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    that are not saturated(integ_resid_ch_unsat)
  • Sequential data channel number. See channel_explanation global attribute.(channel)
  • Logical flag indicating if the AERI sample was used to derive the surface
    temperature value for driving the model(surface_temp_from_aeri_used)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral windows, ch1:[1142.20,1147.03] & ch2:[2506.20,2511.02](mean_AERI_BT)
  • Time offset from base_time(base_time)
  • altitude above sea levelaltunits(alt)
  • wavenumbers for spectral differences(wavenumber)
  • Retrieved sample time (current sample time) minus sonde launch time(sonde_offset_time)
  • AERI radiance spectra minus LBLRTM radiance spectra(rad_difference)
  • north latitude for all the input platforms.(lat)
  • Time offset of tweaks from base_time(time_offset)
  • Indicator of large residuals in channel 1 transparent region(transparent_region_dq_flag)
  • east longitude for all the input platforms.(lon)

sgpqmeaerilblC1.c1:
  • Standard Deviation of Relative Humidity from SMOS(SMOS_sd_rh)
  • Number of wavenumbers over which the integral is calculated(nobs_bin_pro_all)
  • Standard Deviation of Temperature from SMOS(SMOS_sd_temp)
  • Logical flag indicating if the AERI sample was used to derive the surface
    temperature value for driving the model(surface_temp_from_aeri_used)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each physical
    process category that are not saturated(mean_resid_pro_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers between 550.1299 and
    3020.1699 that are not saturated(mean_resid_unsat)
  • Integral of the radiances over wavenumbers between 550.1299 and 3020.1699 where
    the Planck function is used for saturated wavenumbers and AERI measured
    radiance is used ot(integ_rad_all)
  • The mean of the AERI minus LBLRTM modeled residuals over the set of wavenumbers
    which are mapped to a particular physical process as given in the spectral
    mapping functio(mean_resid_pro)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    that are not saturated(integ_resid_ch_unsat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each physical process category that are not saturated(sdev_resid_pro_unsat)
  • Standard deviation of the average radiances in the 985-990 and 2510-2515
    wavenumber windows during the AERI dwell time(aeri_dwell_atm_var)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_bin_pro_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_ch_pro_unsat)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral windows, ch1:[1142.20,1147.03] & ch2:[2506.20,2511.02](mean_AERI_BT)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    within a particular channel for a fixed physical process(sdev_resid_ch_pro)
  • The mean of the AERI minus LBLRTM modeled residuals over the entire wavenumber
    spectrum between 520.2368 and 3020.1699(mean_resid)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each channel and
    physical process category that are not saturated(mean_resid_ch_pro_unsat)
  • Integral of the AERI measured radiances over wavenumbers within each channel and
    physical process category that are not saturated(integ_rad_ch_pro_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each physical process category that are saturated(integ_rad_pro_sat)
  • Number of wavenumbers over which the integral is calculated(nobs_ch_pro_all)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    within a particular bin for a fixed physical process(sdev_resid_bin_pro)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each bin that are not saturated(integ_abs_resid_bin_unsat)
  • Number of residuals over which the mean is calculated(nobs_resid_bin)
  • For each bin, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_bin)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each channel that are saturated(integ_rad_ch_sat)
  • east longitude for all the input platforms.(lon)
  • Mean Relative Humidity from SMOS(SMOS_rh)
  • The mean of the AERI minus LBLRTM modeled residuals within a particular channel
    for a fixed physical process as given in the spectral mapping function
    listed in the gl(mean_resid_ch_pro)
  • Time offset of tweaks from base_time(time_offset)
  • Integral of the AERI measured radiances over wavenumbers within each physical
    process category that are not saturated(integ_rad_pro_unsat)
  • AERI sample time minus SMOS sample time(SMOS_offset_time)
  • Number of residuals over which the mean is calculated(nobs_resid_bin_pro)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each bin and physical process category that are saturated(integ_rad_bin_pro_sat)
  • Indicator of large residuals in channel 1 transparent region(transparent_region_dq_flag)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each bin and physical process category that are not saturated(integ_abs_resid_bin_pro_unsat)
  • Sequential data channel number. See channel_explanation global attribute.(channel)
  • Number of wavenumbers over which the integral is calculated(nobs_pro_all)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each bin that are not saturated(mean_abs_resid_bin_unsat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each channel that are not saturated(sdev_resid_ch_unsat)
  • The mean of the AERI minus LBLRTM modeled residuals over the wavenumbers for
    each of the AERI channels(mean_resid_ch)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers between 550.1299 and 3020.1699 that are not saturated(sdev_resid_unsat)
  • Number of wavenumbers values over which the integral is calculated(nobs_sat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each channel
    and physical process category that are not saturated(integ_resid_ch_pro_unsat)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each channel that
    are not saturated(mean_resid_ch_unsat)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each physical process category that are not saturated(mean_abs_resid_pro_unsat)
  • Number of wavenumbers over which the integral is calculated(nobs_all)
  • Integral of the radiances over wavenumbers within each physical process category
    where the Planck function is used for saturated wavenumbers and AERI
    measured radiance(integ_rad_pro_all)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each bin and
    physical process category that are not saturated(integ_resid_bin_pro_unsat)
  • Difference of brightness temperatures in the ch1 window region, [1142.20,
    1147.03] wavenumbers, which is an indicator of the atmospheric variability(meas_atm_var_T1)
  • Standard Deviation of Barometric Pressure from SMOS(SMOS_sd_bar_pres)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers between 550.1299 and 3020.1699 that are not saturated(integ_abs_resid_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each channel and physical process category that are not saturated(integ_rad_ch_pro_sat)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    over the wavenumbers for each of the bins (sub-bands)(sdev_resid_bin)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each bin and physical process category that are not saturated(sdev_resid_bin_pro_unsat)
  • Number of wavenumbers values over which the integral is calculated(nobs_bin_sat)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each channel that are not saturated(integ_abs_resid_ch_unsat)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers between 550.1299 and
    3020.1699 that are not saturated(integ_resid_unsat)
  • Bin number for wavenumber sub-bands used as a coordinate in the bin dimension(bin)
  • Integral of the radiances over wavenumbers within each bin and physical process
    category where the Planck function is used for saturated wavenumbers and
    AERI measu(integ_rad_bin_pro_all)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each channel that are not saturated(mean_abs_resid_ch_unsat)
  • First temperature reported by the sonde(sonde_surfT)
  • altitude above sea levelaltunits(alt)
  • Integral of the AERI measured radiances over wavenumbers within each bin that
    are not saturated(integ_rad_bin_unsat)
  • Number of wavenumbers over which the integral is calculated(nobs_bin_all)
  • hatch_open_is_true and hatch_closed_is_false(valid_aeri_data)
  • Physical process number used as a coordinate in the process dimension(process)
  • For each channel, this gives the total number of active physical processes out
    of the 12 defined for the process field(NOTE 0-indeterminate is counted)(nactive_pro_ch)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each physical
    process category that are not saturated(integ_resid_pro_unsat)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    over the set of wavenumbers which are mapped to a particular physical
    process(sdev_resid_pro)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each bin that are
    not saturated(mean_resid_bin_unsat)
  • Integral of the AERI measured radiances over wavenumbers within each channel
    that are not saturated(integ_rad_ch_unsat)
  • Number of residuals over which the mean is calculated(nobs_resid_pro)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each physical process category that are not saturated(integ_abs_resid_pro_unsat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_unsat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    between 550.1299 and 3020.1699 that are saturated(integ_rad_sat)
  • Number of wavenumbers values over which the integral is calculated(nobs_bin_pro_sat)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each channel and physical process category that are not
    saturated(sdev_resid_ch_pro_unsat)
  • Integral of the AERI measured radiances over wavenumbers between 550.1299 and
    3020.1699 that are not saturated(integ_rad_unsat)
  • Time offset from base_time(base_time)
  • Mean of the AERI minus LBLRTM residuals for wavenumbers within each bin and
    physical process category that are not saturated(mean_resid_bin_pro_unsat)
  • Precipitation Total from SMOS(SMOS_precip)
  • north latitude for all the input platforms.(lat)
  • Integral of the Planck blackbody radiances using model_surfT over wavenumbers
    within each bin that are saturated(integ_rad_bin_sat)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_bin_unsat)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    over the wavenumbers for each of the AERI channels(sdev_resid_ch)
  • The standard deviation about the mean of the AERI minus LBLRTM modeled residuals
    over the entire wavenumber spectrum between 520.2368 and 3020.1699(sdev_resid)
  • Number of residuals over which the mean is calculated(nobs_resid_ch)
  • Number of residuals over which the mean is calculated(nobs_resid_ch_pro)
  • Number of wavenumbers values over which the integral is calculated(nobs_ch_sat)
  • Mean Barometeric Pressure from SMOS(SMOS_bar_pres)
  • Measure of atmospheric variability over 705-798 cm-1 (bin 3)(meas_atm_var_bin3)
  • Integral of the radiances over wavenumbers within each channel and physical
    process category where the Planck function is used for saturated wavenumbers and
    AERI me(integ_rad_ch_pro_all)
  • For each bin, this gives the total number of active physical processes out of
    the 12 defined for the process field (NOTE 0-indeterminate is counted)(nactive_pro_bin)
  • Integral of the AERI minus LBLRTM residuals for wavenumbers within each bin that
    are not saturated(integ_resid_bin_unsat)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each channel and physical process category that are not saturated(mean_abs_resid_ch_pro_unsat)
  • Number of wavenumbers over which the integral is calculated(nobs_ch_all)
  • Standard deviation about the mean of the AERI minus LBLRTM residuals for
    wavenumbers within each bin that are not saturated(sdev_resid_bin_unsat)
  • Integral of the radiances over wavenumbers within each bin where the Planck
    function is used for saturated wavenumbers and AERI measured radiance is used
    otherwise(integ_rad_bin_all)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    between 550.1299 and 3020.1699 that are not saturated(mean_abs_resid_unsat)
  • Integral of the radiances over wavenumbers within each channel where the Planck
    function is used for saturated wavenumbers and AERI measured radiance is
    used otherwise(integ_rad_ch_all)
  • Mean of the absolute value of the AERI minus LBLRTM residuals for wavenumbers
    within each bin and physical process category that are not saturated(mean_abs_resid_bin_pro_unsat)
  • Number of wavenumbers values over which the integral is calculated(nobs_ch_pro_sat)
  • Integral of the absolute value of the AERI minus LBLRTM residuals for
    wavenumbers within each channel and physical process category that are not saturated(integ_abs_resid_ch_pro_unsat)
  • Mean Vapor Pressure from SMOS(SMOS_vap_pres)
  • Surface temps used in the LBLRTM runs -- Univ of WISC selected bands(model_surfT)
  • Number of wavenumbers values over which the integral is calculated(nobs_pro_sat)
  • Mean Temperature from SMOS(SMOS_temp)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_ch_unsat)
  • For each channel, this gives the process number of all active physical processes
    identified by the spectral mapping(active_pro_ch)
  • Standard Deviation of Vapor Pressure from SMOS(SMOS_sd_vap_pres)
  • Integral of the AERI measured radiances over wavenumbers within each bin and
    physical process category that are not saturated(integ_rad_bin_pro_unsat)
  • Number of residuals over which the mean is calculated(nobs_resid)
  • The mean of the AERI minus LBLRTM modeled residuals within a particular bin for
    a fixed physical process as given in the spectral mapping function listed in
    the globa(mean_resid_bin_pro)
  • The mean of the AERI minus LBLRTM modeled residuals over the wavenumbers for
    each of the bins (sub-bands)(mean_resid_bin)
  • Retrieved sample time (current sample time) minus sonde launch time(sonde_offset_time)
  • Number of wavenumbers over which the mean or integral is calculated(nobs_pro_unsat)

sgpaerilblcloudsC1.c1:
  • Number of cloudy observations in ensemble(nobs_mpl_cbh)
  • altitude above sea levelaltunits(alt)
  • Number of clear observations in ensemble(nobs_cloud3_clear)
  • Number of foggy observations in ensemble (probably condensation on the window)(nobs_mpl_foggy)
  • Standard deviation of vap ensemble(sdev_vap)
  • Retrieved sample time (current sample time) minus sonde launch time(sonde_offset_time)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral window for channel 2: [2506.20,2511.02](mean_AERI_BT_channel_2)
  • Standard deviation of 23tbsky ensemble(sdev_23tbsky_large)
  • Standard deviation of 31tbsky ensemble(sdev_31tbsky)
  • Standard deviation of mpl_cbh ensemble(sdev_mpl_cbh)
  • Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)
  • Cloud detection flag from sgpaerilblcloudsC1.c1(nonclear_flag)
  • Ensemble average of first cloud base height from the Belfort ceilometer(mean_cloud1_cbh)
  • Ensemble average of ratios of direct_norm_broadband divided by
    diffuse_hemisp_broadband from the SIROS(mean_dir_by_diff_ratio)
  • Number of cloudy observations in ensemble(nobs_cloud1_cbh)
  • east longitude for all the input platforms.(lon)
  • Time offset of tweaks from base_time(time_offset)
  • Number of observations in each MWR ensemble (23tbsky, 31tbsky, vap, liq)(nobs_mwr_ensembles)
  • Standard deviation of the average radiance in the 2510-2515 wavenumber window
    during the AERI dwell time(aeri_dwell_atm_var_channel_2)
  • Cloud base height from the MPL(mean_mpl_cbh)
  • Number of observations in each `large` MWR ensemble (23tbsky and 31tbsky)(nobs_mwr_ensembles_large)
  • Standard deviation of the average radiance in the 985-990 wavenumber window
    during the AERI dwell time(aeri_dwell_atm_var_channel_1)
  • Number of clear observations in ensemble(nobs_mpl_clear)
  • Standard deviation of ratio ensemble about mean_dir_to_diff_ratio(sdev_dir_by_diff_ratio)
  • Serial number for the sonde used at this time.(sonde_serial_number)
  • Average IR temperature from the IRT (on the MWR)(mean_irt)
  • Ensemble average of second cloud base height from the Belfort ceilometer(mean_cloud2_cbh)
  • Ensemble average of third cloud base height from the Belfort ceilometer(mean_cloud3_cbh)
  • AERI sample time minus WSI image time(wsi_offset_time)
  • Ensemble average of 23.8 GHz sky brightness temperature from the MWR(mean_23tbsky)
  • Number of cloudy observations in ensemble(nobs_cloud2_cbh)
  • Data quality flag for MPL cbh ensemble(mpl_cbh_dq_flag)
  • Number of clear observations in ensemble(nobs_cloud2_clear)
  • Time offset from base_time(base_time)
  • north latitude for all the input platforms.(lat)
  • Standard deviation of cloud1 ensemble(sdev_cloud1_cbh)
  • Standard deviation of 31tbsky ensemble(sdev_31tbsky_large)
  • Number of ratios in ensemble(nobs_dir_by_diff_ratio)
  • Cloud base height estimate from the field mean_AERI_BT_channel_1(cbh_AERI_channel_1)
  • Calculated cloud cover fraction from the WSI(cloud_cover_fract)
  • Standard deviation of the IR temperature ensemble(sdev_irt)
  • Ensemble average of total water vapor along LOS path from the MWR(mean_vap)
  • Average total liquid water along LOS path from the MWR(mean_liq)
  • Standard deviation of 23tbsky ensemble(sdev_23tbsky)
  • Cloud base height estimate from the field mean_AERI_BT_channel_2(cbh_AERI_channel_2)
  • Standard deviation of liq ensemble(sdev_liq)
  • Number of cloudy observations in ensemble(nobs_cloud3_cbh)
  • Calculated cloud cover fraction from the WSI(cloud_cover_frac)
  • IR temperature calculated from the AERI spectral response function used to
    mimick the output from the IR thermometer on the MWR(calculated_irt)
  • Calculated number of clouds in WSI image(num_cloud)
  • Average of brightness temperatures calculated from AERI radiances within
    spectral window for channel 1: [1142.20,1147.03](mean_AERI_BT_channel_1)
  • Standard deviation of cloud2 ensemble(sdev_cloud2_cbh)
  • Standard deviation of cloud3 ensemble(sdev_cloud3_cbh)
  • Binary field indicating which inputs are available and used to set the
    nonclear_flag(nonclear_inputs)
  • Ensemble average of 31.4 GHz sky brightness temperature from the MWR(mean_31tbsky)
  • Number of clear observations in ensemble(nobs_cloud1_clear)

sgplblch2aeriC1.c1:
  • Time offset from base_time(base_time)
  • Maximum height reached by this sonde launch(max_sonde_alt)
  • altitude above sea levelaltunits(alt)
  • Sonde launch time minus surface temperature time(surface_time_offset)
  • east longitude for all the input platforms.(lon)
  • column ozone(ozone)
  • Surface temperature from wavenumber average of spectral radiance at mean
    wavenumber 677.417 cm-1(wisc_summary_T_ch1)
  • Serial number for the sonde used at this time.(sonde_serial_number)
  • wavenumbers for mean radiance spectra(wnum)
  • Surface temperature from wavenumber average of spectral radiance at mean
    wavenumber 2295.021 cm-1(wisc_summary_T_ch2)
  • Surface temperature as reported by sonde(sonde_surface_T)
  • north latitude for all the input platforms.(lat)
  • Time offset of tweaks from base_time(time_offset)
  • LBLRTM Model radiance spectra(model_rad)

sgpaeriprof3feltzC1.c1:
  • Interpolated dewpoint temperature(dewpointTemperature)
  • Cloud-base height, from Micropulse LIDAR or Belfort LIDAR ceilometer(cloudBaseHeight)
  • CPL retrieval of absolute temperature(CPL_ambientTemp)
  • Interpolated water vapor mixing ratio(waterVaporMixingRatio)
  • Auxilliary flags for THIS retrieval(auxDataFlagsNow)
  • profile source flag(profile_source_flag)
  • CPL height array for the profile(CPL_height)
  • altitude above sea levelaltunits(alt)
  • Total precipitable water vapor, from Microwave Radiometer(totalPrecipitalWater)
  • Auxilliary flags for TODAY(auxDataFlagsToday)
  • Retrieval rejection flag(retrievalRejectionFlag)
  • Height of bins above ground level for the temperature, retrieved water vapor,
    and pressure profile(height)
  • east longitude for all the input platforms.(lon)
  • north latitude for all the input platforms.(lat)
  • CPL retrieval of atmospheric Pressure(CPL_pressure)
  • Temperature used to determine the backscatter profile(temperature)
  • Time offset from base_time(base_time)
  • atmospheric pressure at mean sea level and at tropopause (NGM250 predicted)(pressure)
  • Constant Pressure Level (Wisc original pres_level)(CPL)
  • CPL retrieval of dewpoint temperature(CPL_dewpointTemp)
  • CPL retrieval of water vapor mixing ratio(CPL_waterVaporMixingRatio)
  • Time offset of tweaks from base_time(time_offset)
  • Time offset from midnight of date of file. For CO data, this is identical to
    time_offset and is included for compatibility.(time)


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DQRID : D050812.7
Start DateStart TimeEnd DateEnd Time
09/21/1999000007/30/20052355
Subject:
SGP/THWAPS/B6  - Minor biases in humidity and saturation vapor pressure
DataStreams:sgpthwapsB6.b1
Description:
The THWAPS humidity sensor output was scaled so that the instrument output
voltage range (0-1VDC) represented 0-100 %RH. Comparisons with the
co-located chilled mirror sensor at the CF suggested that the THWAPS RH
sensor was reading artifically low at high humidities because of this 100
%RH maximum. 
   
The scaling of the system was changed so that 0-1 VDC now represents 0-110
%RH. This resulted in a slight loss of precision in the measurements, but
since the RH measurement is only accurate to 2-3 %RH at best, this isn't a
significant problem.
   
The saturation vapor correction when temps are below 0C contained an error
in the multiplier.  The incorrect multiplier only equates to an error of
0.01 kPa which is less than the stated uncertainty of the measurement (+/-
0.035 kPa).
Measurements:sgpthwapsB6.b1:
  • Vapor Pressure (kiloPascals)(vap_pres)
  • Relative humidity scaled, by total column amount from MWR(rh)


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DQRID : D050927.1
Start DateStart TimeEnd DateEnd Time
02/01/2005070009/13/20051805
Subject:
PYE/MWR/M1 - New software version (4.15) installed
DataStreams:pyemwrlosM1.b1, pyemwrtipM1.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 9/13/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:pyemwrtipM1.a1:
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Blackbody kinetic temperature(tkbb)
  • Ambient temperature(tkair)
  • Noise diode mount temperature(tknd)
  • 31.4 GHz Blackbody signal(bb31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 23.8 GHz sky signal(tipsky23)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)

pyemwrlosM1.b1:
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mean total liquid water amount along LOS path(liq)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz Blackbody signal(bb31)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz sky signal(sky23)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise diode mount temperature(tknd)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mean total water vapor amount along LOS path(vap)


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DQRID : D050928.4
Start DateStart TimeEnd DateEnd Time
09/20/2002025109/15/20051722
Subject:
NSA/MWR/C2 - New software version (4.15) installed
DataStreams:nsamwrlosC2.b1, nsamwrtipC2.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in September 2002. The 
software had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one 
that caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of 
tip curves, and saturation of CPU usage.  Software versions 4.13 and 4.14 also produced 
these problems.

The new MWR software version (4.15) was installed on 9/15/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:nsamwrlosC2.b1:
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(sky23)
  • 23.8 GHz Blackbody signal(bb23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Mean total liquid water amount along LOS path(liq)
  • Mean IR brightness temperature(ir_temp)
  • Blackbody kinetic temperature(tkbb)
  • Mean total water vapor amount along LOS path(vap)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise diode mount temperature(tknd)
  • 31.4 GHz sky signal(sky31)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • 31.4 GHz Blackbody signal(bb31)

nsamwrtipC2.a1:
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Ambient temperature(tkair)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 23.8 GHz sky signal(tipsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise diode mount temperature(tknd)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 31.4 GHz(tc31)


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DQRID : D051011.3
Start DateStart TimeEnd DateEnd Time
05/01/2002145808/01/20052306
Subject:
SGP/MWR/E14 - New software version (4.15) installed
DataStreams:sgpmwrlosE14.b1, sgpmwrtipE14.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in May 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 8/1/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:sgpmwrtipE14.a1:
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise diode mount temperature(tknd)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • 31.4 GHz Blackbody signal(bb31)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Mixer kinetic (physical) temperature(tkxc)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz Blackbody signal(bb23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz sky signal(tipsky23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)

sgpmwrlosE14.b1:
  • Mean total liquid water amount along LOS path(liq)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Mean total water vapor amount along LOS path(vap)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • 23.8 GHz Blackbody signal(bb23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • Noise diode mount temperature(tknd)
  • 23.8 GHz sky signal(sky23)
  • Blackbody kinetic temperature(tkbb)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Ambient temperature(tkair)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mixer kinetic (physical) temperature(tkxc)
  • 31.4 GHz Blackbody signal(bb31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky signal(sky31)


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DQRID : D051025.2
Start DateStart TimeEnd DateEnd Time
10/31/2003000009/14/20051420
Subject:
NSA/METTWR/C1 - Data 1-minute behind
DataStreams:nsamettwr4hC1.b1
Description:
Data from the Barometer, Chilled Mirror Hygrometer and the Present Weather Sensor were 
one-minute behind due to timing problems collecting data from the Serial Data Multiplexer 
that handled these sensors.
Measurements:nsamettwr4hC1.b1:
  • 15 minute Present Weather Code(PwCod15mi)
  • 1 minute Average Visibility(AvgVis1mi)
  • Chilled Mirror Dew Point(CMHDP)
  • Instant Present Weather Code(InstPwCod)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • 1 hour Present Weather Code(PwCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • 10 minute Average Visibility(AvgVis10m)
  • Chilled Mirror Temperature(CMHTemp)
  • Precipitation Rate(PcpRate)
  • Cumulative Water Sum(CumH2O)
  • Present Weather Sensor Alarm(PWSAlarm)
  • Atmospheric Pressure(AtmPress)


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DQRID : D051101.4
Start DateStart TimeEnd DateEnd Time
10/31/2003000010/20/20051900
Subject:
NSA/METTWR/C1 - Reprocess: Wind direction data incorrect
DataStreams:nsamettwr4hC1.b1
Description:
Wind direction data is off by 30 degrees for all wind sensors.  The 40-m tower was 
misaligned to true north.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)
  • 20m Vector Averaged Wind Direction(WD20M_DU_WVT)
  • Sonic Vector Averaged Wind Direction(SonicWD_DU_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)


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DQRID : D051101.5
Start DateStart TimeEnd DateEnd Time
08/20/2005212710/18/20052038
Subject:
SGP/SURTHREF/C1 - Temperature and RH probe failure
DataStreams:sgpsurthrefC1.b1
Description:
Temperature and RH probe V1 were failing intermittently.
Measurements:sgpsurthrefC1.b1:
  • Vaisala probe 1 RH standard deviation(RH_V1_std)
  • Vaisala probe 1 temperature standard deviation(temp_V1_std)
  • Vaisala probe 1 temperature maximum(temp_V1_max)
  • Vaisala probe 1 temperature minimum(temp_V1_min)
  • Vaisala probe 1 RH minimum(RH_V1_min)
  • Vaisala probe 1 average temperature(temp_V1_avg)
  • Vaisala probe 1 average RH(RH_V1_avg)
  • Vaisala probe 1 RH maximum(RH_V1_max)


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DQRID : D051112.10
Start DateStart TimeEnd DateEnd Time
10/13/2003000008/16/20052359
Subject:
SGP/EBBR/E27 - metadata corrections
DataStreams:sgp5ebbrE27.b1, sgp15ebbrE27.b1, sgp30ebbrE27.b1
Description:
On 20050816, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E27 data collected by ARM back to the installation of the 
instrument in May 2003. Please see the current metadata for correct information.  These 
changes do not affect data values or quality.	

The changes are summarized below:
1) Update of "sensor location" information
2) Addition of installation dates for the systems
3) Correction of soil moisture units (from "by volume" to "gravimetric")
Measurements:sgp30ebbrE27.b1:
  • Time offset from base_time(base_time)

sgp5ebbrE27.b1:
  • Time offset from base_time(base_time)

sgp15ebbrE27.b1:
  • Time offset from base_time(base_time)


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DQRID : D051112.5
Start DateStart TimeEnd DateEnd Time
10/13/2003000007/22/20052359
Subject:
SGP/EBBR/E8 - metadata corrections
DataStreams:sgp5ebbrE8.b1, sgp15ebbrE8.b1, sgp30ebbrE8.b1
Description:
On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E8 data collected by ARM back to the installation of the 
instrument in December 1992. Please see the current metadata for correct information.  These 
changes do not affect data values or quality.	

The changes are summarized below:
1) Update of "sensor location" information
2) Addition of installation dates for the systems
3) Correction of soil moisture units (from "by volume" to "gravimetric")
Measurements:sgp30ebbrE8.b1:
  • Time offset from base_time(base_time)

sgp5ebbrE8.b1:
  • Time offset from base_time(base_time)

sgp15ebbrE8.b1:
  • Time offset from base_time(base_time)


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DQRID : D051202.2
Start DateStart TimeEnd DateEnd Time
11/16/2004000009/09/20052133
Subject:
NSA/SKYRAD/C2 - Reprocess: Incorrect datalogger program affecting PIR1 and PIR2 
downwelling longwave
DataStreams:nsaskyrad20sC2.a0, nsaskyrad60sC2.b1
Description:
The excitation delays using in measuring the PIR1 case thermistor commonly named "Case1" 
and the PIR2 dome thermistor called "Dome2" were discovered to have been incorrectly set 
to 0 in the Skyrad datalogger program when the new CR23X based Skyrad loggers were 
installed.  The result of no delay in these measurements results in an error in the measured 
resistance of the thermistors, Case1 and Dome2 and thus the calculated PIR1 and PIR2 
irradiances.  The errors are inversely proportial to temperature.

Users can apply temperature dependent irradiance corrections shown in the table below.  
Recall that the reported uncertainty of PIRs is typically +-.25% to +-.5% or 1 to 2 W/m2.  
The error corrections become the same order of magnitude or larger than the instrument 
uncertainties at or below 260K or 9F.

Correction Table for Skyrad (TWP and NSA) DIR1 and DIR2 Irradiance				
	DIR1	DIR1	DIR2	DIR2
T[F]	Tcase[K]	Correction[W/m2]	Tdome[K]	Correction[W/m2]
109.4	316.13	0.00	316.13	0.00
100.5	311.20	-0.15	311.20	0.12
93.2	307.14	-0.12	307.14	0.10
87.0	303.70	-0.10	303.70	0.08
81.6	300.70	-0.17	300.70	0.14
77.0	298.15	-0.22	298.15	0.18
59.4	288.35	-0.34	288.35	0.27
47.4	281.72	-0.23	281.72	0.18
38.5	276.74	-0.42	276.74	0.34
31.3	272.77	-0.48	272.77	0.38
25.4	269.48	-0.61	269.48	0.49
20.3	266.67	-0.67	266.67	0.54
16.0	264.25	-0.82	264.25	0.66
12.1	262.11	-0.98	262.11	0.79
8.7	260.19	-0.97	260.19	0.78
5.6	258.46	-1.07	258.46	0.86
2.7	256.89	-1.17	256.89	0.94
0.1	255.44	-1.33	255.44	1.07
-2.3	254.11	-1.41	254.11	1.13
-4.5	252.87	-1.43	252.87	1.15
-6.6	251.71	-1.52	251.71	1.22
-8.5	250.63	-1.63	250.63	1.31
-10.4	249.62	-1.73	249.62	1.39
-12.2	248.58	-1.79	248.58	1.44
-15.4	246.82	-1.93	246.82	1.55
-18.3	245.23	-2.05	245.23	1.65
-20.9	243.78	-2.22	243.78	1.78
-23.3	242.44	-2.36	242.44	1.89
-25.5	241.21	-2.58	241.21	2.07
-27.5	240.07	-2.65	240.07	2.13
-29.5	239.01	-2.75	239.01	2.21
-31.3	238.00	-3.02	238.00	2.42
Measurements:nsaskyrad60sC2.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Minima(down_long_hemisp_shaded2_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp_shaded1)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Maxima(down_long_hemisp_shaded1_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Minima(down_long_hemisp_shaded1_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Maxima(down_long_hemisp_shaded2_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp_shaded2)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Standard
    Deviation(down_long_hemisp_shaded1_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Standard
    Deviation(down_long_hemisp_shaded2_std)

nsaskyrad20sC2.a0:
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer1(inst_down_long_hemisp_shaded1_tp)
  • Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer2(inst_down_long_hemisp_shaded2_tp)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer2(inst_down_long_shaded2_case_resist)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer1(inst_down_long_shaded1_case_resist)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer1(inst_down_long_shaded1_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer2(inst_down_long_shaded2_dome_resist)


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DQRID : D060112.2
Start DateStart TimeEnd DateEnd Time
01/01/2002000012/31/20052359
Subject:
GEC/TOMS/X1 - Calibration Error
DataStreams:gectomsX1.a1, gectomsreflX1.00, gectomsozoneX1.00, gectomsaerosolindexX1.00
Description:
For data beginning in year 2000, the calibration has been stabilized relative to NOAA-16 
SBUV/2 in the equatorial zone. Because of continuing changes in the optical properties of 
the front scan mirror that are not well understood, we are now seeing a latitude 
dependent error that cannot be corrected by a simple calibration correction. The calibration 
appears to be stable near the equator. But by 50 degrees latitude, there is now a -2% to -4% 
error in TOMS, a bit larger in the northern hemisphere than in the southern hemisphere. 
Because of this error, data since 2002 should NOT be used for trend analysis.
Measurements:gectomsaerosolindexX1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

gectomsozoneX1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

gectomsX1.a1:
  • north latitude for all the input platforms.(lat)
  • Time offset of tweaks from base_time(time_offset)
  • Date(date)
  • reflectivity(reflectivity)
  • Time offset from base_time(base_time)
  • column ozone(ozone)
  • east longitude for all the input platforms.(lon)
  • aerosol index(ai)

gectomsreflX1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)


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DQRID : D060220.3
Start DateStart TimeEnd DateEnd Time
02/01/2005010011/04/20050600
Subject:
TWP/MMCR/C3 - MMCR Power Monitor failure
DataStreams:twpmmcrcalC3.a1, twpmmcrpowC3.a1
Description:
During this period, the transmit power monitor on the TWTA was not working.  This resulted 
in the power level reading staying at a steady state (approximately 49 dBm).  Normal 
transmitter fluctuations are expected to be on the order of +/- 0.3 dBm.
Measurements:twpmmcrcalC3.a1:
  • MMCR Reflectivity(Reflectivity)

twpmmcrpowC3.a1:
  • Transmitted RF Power(TransmittedRFPower)


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DQRID : D060407.1
Start DateStart TimeEnd DateEnd Time
01/10/2006160003/01/20060803
Subject:
NIM/MET/M1 - Software problem
DataStreams:nimmetM1.b1
Description:
Intermittent Failure of Logger to read data from the Barometer.
Measurements:nimmetM1.b1:
  • Atmospheric pressure(atmos_pressure)


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DQRID : D060531.3
Start DateStart TimeEnd DateEnd Time
10/03/2003190005/25/20061800
Subject:
SGP/ECOR/E10 - Reprocess: Wind Direction Incorrect
DataStreams:sgp30ecorE10.b1
Description:
It was discovered that the E10 ECOR boom is aligned 17 degrees to the west of true north.  
Therefore, all wind direction data for the stated period is 17 degrees too high.  
Subtract 17 degrees from the wind direction to give the correct direction.

The E10 configuration file was modified to correct this problem.
Measurements:sgp30ecorE10.b1:
  • vector averaged wind direction(wind_dir)


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DQRID : D060630.19
Start DateStart TimeEnd DateEnd Time
02/17/2004175302/14/20062016
Subject:
SGP/SIRS/E11 - Reprocess: Longwave Calibration error
DataStreams:sgpsirsE11.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:sgpsirsE11.b1:
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)


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DQRID : D060630.20
Start DateStart TimeEnd DateEnd Time
07/22/2003164002/14/20061710
Subject:
SGP/SIRS/E12 - Reprocess: Longwave Calibration error
DataStreams:sgpsirsE12.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:sgpsirsE12.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)


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DQRID : D060630.38
Start DateStart TimeEnd DateEnd Time
11/16/2004163012/21/20052244
Subject:
NSA/SKYRAD/C2 - Reprocess: Longwave Calibration error
DataStreams:nsaskyrad60sC2.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:nsaskyrad60sC2.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp_shaded1)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp_shaded2)


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DQRID : D060630.44
Start DateStart TimeEnd DateEnd Time
02/01/2005000009/14/20050000
Subject:
PYE/GNDRAD/M1 - Reprocess: Longwave Calibration error
DataStreams:pyegndrad60sM1.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:pyegndrad60sM1.b1:
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)


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DQRID : D060630.6
Start DateStart TimeEnd DateEnd Time
01/15/2004205202/14/20062050
Subject:
SGP/IRT/C1 - Reprocess: Longwave Calibration error
DataStreams:sgpirt25mC1.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:sgpirt25mC1.b1:
  • Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(inst_up_long_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)


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DQRID : D060630.7
Start DateStart TimeEnd DateEnd Time
12/11/2003193502/16/20061903
Subject:
SGP/BRS/C1 - Reprocess: Longwave Calibration error
DataStreams:sgpbrsC1.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:sgpbrsC1.b1:
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)


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DQRID : D060706.1
Start DateStart TimeEnd DateEnd Time
12/13/2005000007/07/20062359
Subject:
DataStreams:sgpwacrC1.b1
Description:
Measurements:

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DQRID : D060706.3
Start DateStart TimeEnd DateEnd Time
03/16/2006000007/07/20062359
Subject:
DataStreams:nimwacrM1.b1
Description:
Measurements:

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DQRID : D980528.1
Start DateStart TimeEnd DateEnd Time
07/01/1997093607/03/19971556
08/01/1997132908/08/19971348
05/05/1998092606/16/19981505
06/09/1999082407/26/19992205
09/08/2000042610/13/20001630
05/17/2002060205/20/20051847
05/23/2002201105/31/20021258
09/09/2002000010/07/20021905
Subject:
SGP/AOS/C1 - Optical Particle Counter (PCASP-X) down
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
The AOS Optical Particle Spectrometer (PCASP-X sizing probe) was down during these 
periods.  This lowers the laser reference voltage and results in inaccurate sizing.
Measurements:sgpaosauxC1.a0:
  • OPC sheath(OPCSheath)
  • OPC sample flow(OPCFlow)
  • Analog signal from PMS PCASP(OPCLaserVolt)

sgpaosC1.a0:
  • PMS PCASP Chan. 7 (0.23 micrometers < Dp < 0.26)(pa23_p26conc)
  • PMS PCASP Chan. 26 (3.00 micrometers < Dp < 3.50)(pa300_p350conc)
  • PMS PCASP Chan. 28 (4.00 micrometers < Dp < 5.00)(pa400_p500conc)
  • PMS PCASP Chan. 15 (0.70 micrometers < Dp < 0.80)(pa70_p80conc)
  • PMS PCASP Chan. 25 (2.60 micrometers < Dp < 3.00)(pa260_p300conc)
  • PMS PCASP Chan. 0 (Dp > 10 micrometers)(Pa1000Conc)
  • PMS PCASP Chan. 2 (0.12 micrometers < Dp < 0.14)(pa12_p14conc)
  • PMS PCASP Chan. 30 (6.50 micrometers < Dp < 8.00)(pa650_p800conc)
  • PMS PCASP Chan. 6 (0.20 micrometers < Dp < 0.23)(pa20_p23conc)
  • PMS PCASP Chan. 19 (1.30 micrometers < Dp < 1.40)(pa130_p140conc)
  • PMS PCASP Chan. 17 (0.90 micrometers < Dp < 1.00)(pa90_p100conc)
  • PMS PCASP Chan. 18 (1.00 micrometers < Dp < 1.30)(pa100_p130conc)
  • PMS PCASP Chan. 3 (0.14 micrometers < Dp < 0.16)(pa14_p16conc)
  • PMS PCASP Chan. 31 (8.00 micrometers < Dp < 10.0)(pa800_p1000conc)
  • PMS PCASP Chan. 1 1/cm^3 (0.10 micrometers < Dp < 0.12)(pa10_p12conc)
  • PMS PCASP Chan. 23 1/cm^3 (2.00 micrometers < Dp < 2.30)(pa200_p230conc)
  • PMS PCASP Chan. 24 (2.30 micrometers < Dp < 2.60)(pa230_p260conc)
  • PMS PCASP Chan. 21 (1.60 micrometers < Dp < 1.80)(pa160_p180conc)
  • PMS PCASP Chan. 22 (1.80 micrometers < Dp < 2.00)(pa180_p200conc)
  • PMS PCASP Chan. 9 (0.30 micrometers < Dp < 0.35)(pa30_p35conc)
  • PMS PCASP Chan. 27 (3.50 micrometers < Dp < 4.00)(pa350_p400conc)
  • PMS PCASP Chan. 13 (0.50 micrometers < Dp < 0.60)(pa50_p60conc)
  • PMS PCASP Chan. 4 (0.16 micrometers < Dp < 0.18)(pa16_p18conc)
  • PMS PCASP Chan. 20 (1.40 micrometers < Dp < 1.60)(pa140_p160conc)
  • PMS PCASP Chan. 8 (0.26 micrometers < Dp < 0.30)(pa26_p30conc)
  • PMS PCASP Chan. 5 (0.18 micrometers < Dp < 0.20)(pa18_p20conc)
  • PMS PCASP Chan. 14 (0.60 micrometers < Dp < 0.70)(pa60_p70conc)
  • PMS PCASP Chan. 10 (0.35 micrometers < Dp < 0.40)(pa35_p40conc)
  • PMS PCASP Chan. 11 (0.35 micrometers < Dp < 0.40)(pa40_p45conc)
  • PMS PCASP Chan. 16 (0.80 micrometers < Dp < 0.90)(pa80_p90conc)
  • PMS PCASP Chan. 12 (0.45 micrometers < Dp < 0.50)(pa45_p50conc)
  • PMS PCASP Chan. 29 (5.00 micrometers < Dp < 6.50)(pa500_p650conc)


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END OF DATA