DQRs for Session: 133656 User:perezCompleted: 03-04-2011

Data Quality Reports for Session: 133656 User: perez Completed: 03/04/2011

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040719.2	NSA/METTWR/C1 - power outage at 40m level	nsamettwr4hC1.b1
D040722.2	NSA/METTWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic temperatures	nsamettwr4hC1.b1
D040728.1	NSA/METTWR/C1 - CMH Dew Point and RH data Incorrect	nsamettwr4hC1.b1
D040930.1	NSA/METTWR/C1 - Instrument problem, Contamination, False signal	nsamettwr4hC1.b1
D041011.2	NSA/METTWR/C1 - 20m Temperature/RH Sensor Failing	nsamettwr4hC1.b1
D041020.1	NSA/METTWR/C1 - Sonic - Instrument problem, Contamination, False signal	nsamettwr4hC1.b1
D041101.1	NSA/METTWR/C1 - Instrument problem, Frosting/Condensation	nsamettwr4hC1.b1
D041214.1	NSA/METTWR/C1 - All 10m level Data Missing	nsamettwr4hC1.b1
D041216.3	NSA/METTWR/C1 - Instrument problem	nsamettwr4hC1.b1
D041216.4	NSA/METTWR/C1 - Reprocess: Incorrect windspeed units	nsamettwr4hC1.b1
D050110.3	NSA/METTWR/C1 - Instrument problem, Contamination, False signal	nsamettwr4hC1.b1
D050112.1	NSA/C1 - Site-wide power failure	nsamplC1.a1, nsamwrpC1.b1, nsamplpsC1.a0, nsamwrlosC1.b1, nsamwrtipC1.a1, nsaaerich1C1.b1, nsaaerich2C1.b1, nsammcrmomC1.b1, nsamettwr4hC1.b1, nsavceil25kC1.b1, nsatwrcam40mC1.a1, nsaaerisummaryC1.b1, nsaaeriengineerC1.b1, nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindspecC1.a0
D050124.2	NSA/METTWR/C1 - CMH data intermittently poor	nsamettwr4hC1.b1
D050527.2	NSA/METTWR/C1 - Incorrect Maximum for Precip Values	nsamettwr4hC1.b1
D050727.1	NSA/METTWR/C1 - CMH mirror dirty	nsamettwr4hC1.b1
D050829.2	NSA/METTWR/C1 - Tower Maintenance	nsamettwr4hC1.b1
D050906.1	NSA/METTWR/C1 - CMH and PWS data missing	nsamettwr4hC1.b1
D050920.5	NSA/METTWR/C1 - CMH Data Missing	nsamettwr4hC1.b1
D051011.1	NSA/METTWR/C1 - 2m wind Direction Sensor Failed	nsamettwr4hC1.b1
D051025.2	NSA/METTWR/C1 - Data 1-minute behind	nsamettwr4hC1.b1
D051101.4	NSA/METTWR/C1 - Reprocess: Wind direction data incorrect	nsamettwr4hC1.b1
D060119.1	NSA/METTWR/C1 - CMH Data Not Representative	nsamettwr4hC1.b1
D060215.4	NSA/METTWR/C1 - CMH Data missing	nsamettwr4hC1.b1
D060220.1	NSA/METTWR/C1 - Ultrasonic Wind Sensor Values Incorrect	nsamettwr4hC1.b1
D060220.2	NSA/METTWR/C1 - PWS data missing due to blizzard	nsamettwr4hC1.b1
D060224.1	NSA/METTWR/C1 - 2m Wind Speed Artificially Low	nsamettwr4hC1.b1
D060303.2	NSA/METTWR/C1 - CMH temp inaccurate	nsamettwr4hC1.b1
D060323.1	NSA/METTWR/C1 - 10m Wind Speed Low	nsamettwr4hC1.b1
D060323.2	NSA/METTWR/C1 - 10m Wind Speed Intermittently Low	nsamettwr4hC1.b1
D060323.3	NSA/METTWR/C1 - 40m Wind Speeds Intermittently Low	nsamettwr4hC1.b1
D060323.4	NSA/METTWR/C1 - 20m Wind Speeds Intermittently Low	nsamettwr4hC1.b1
D060426.5	NSA/METTWR/C1 - CMH Data Missing	nsamettwr4hC1.b1
D060426.6	NSA/METTWR/C1 - CMH Data Suspect	nsamettwr4hC1.b1
D060526.3	NSA/METTWR/C1 - Wind direction measurements suspect	nsamettwr4hC1.b1
D060817.4	NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa	nsamettwr4hC1.b1
D060913.6	NSA/METTWR/C1 - Present Weather Sensor data missing or incorrect due to calibration.	nsamettwr4hC1.b1
D061003.1	NSA/METTWR/C1 - All data from 10m Level Missing	nsamettwr4hC1.b1
D061012.2	NSA/METTWR/C1 - Missing CMH data	nsamettwr4hC1.b1
D061023.1	NSA/METTWR/C1 - 10m level loss of power	nsamettwr4hC1.b1
D061025.1	NSA/METTWR/C1 - 2m T/RH probe aspirator fan failed	nsamettwr4hC1.b1
D061128.2	NSA/METTWR/C1 - Wind direction sensor frozen	nsamettwr4hC1.b1
D061213.1	NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectly	nsamettwr4hC1.b1
D061213.2	NSA/METTWR/C1 - 40m wind sensor heater failure	nsamettwr4hC1.b1
D070226.1	NSA/METTWR/C1 - 40m Wind Direction Data Suspect	nsamettwr4hC1.b1
D070413.1	NSA/METTWR/C1 - PWS Data Questionable	nsamettwr4hC1.b1
D070529.1	NSA/METTWR/C1 - 20m RH Data Questionable	nsamettwr4hC1.b1
D080325.1	NSA/METTWR/C1 - Intermittent missing data	nsamettwr4hC1.b1
D080326.2	NSA/METTWR/C1 - 2m Wind Direction Sensor Freezing	nsamettwr4hC1.b1
D080408.2	NSA/METTWR/C1 - CMH Intake Fan Failure	nsamettwr4hC1.b1
D080611.1	NSA/METTWR/C1 - 2m Datalogger Failed	nsamettwr4hC1.b1
D080612.1	NSA/METTWR/C1 - CMH required Calibration	nsamettwr4hC1.b1
D080731.1	NSA/METTWR/C1 - 2m level data incorrect	nsamettwr4hC1.b1

DQRID : D040719.2

Start Date	Start Time	End Date	End Time
07/03/2004	1522	07/08/2004	1915

Subject:	NSA/METTWR/C1 - power outage at 40m level
DataStreams:	nsamettwr4hC1.b1
Description:	40m level lost power so no data was collected from this level.
Measurements:	nsamettwr4hC1.b1: Wind speed, mean, at 40-m height(WS40M_S_WVT) Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) Relative humidity, average, at 40-m height(RH40M_AVG) Volt40M_AVG Temperature, air, average, at 40-m height(T40M_AVG) RefT40M_AVG WD40M_SDU_WVT RH40M_STD Temperature, dew point, average, at 40-m height(DP40M_AVG) T40M_STD Wind speed, vector-averaged, at 40-m height(WS40M_U_WVT) VP40M_STD Pressure, vapor, at 40-m height(VP40M_AVG) DP40M_STD

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DQRID : D040722.2

Start Date	Start Time	End Date	End Time
11/01/2003	0000	04/23/2004	1858

Subject:	NSA/METTWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic temperatures
DataStreams:	nsamettwr4hC1.b1
Description:	Data missing due to problems with manufacturer's transmit logic board chipset. They were generic chips not rated for Arctic temperatures.
Measurements:	nsamettwr4hC1.b1: SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D040728.1

Start Date	Start Time	End Date	End Time
07/21/2004	1500	08/03/2004	2300

Subject:	NSA/METTWR/C1 - CMH Dew Point and RH data Incorrect
DataStreams:	nsamettwr4hC1.b1
Description:	The Chilled Mirror Dew Point reported negative dew point values. This caused the RH to be much lower than reality also. Compared to the 2m level the RH and dew point from the CMH are incorrect. Mirror was dirty, it was removed, cleaned and recalibrated.
Measurements:	nsamettwr4hC1.b1: CMHDP CMHRH

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DQRID : D040930.1

Start Date	Start Time	End Date	End Time
09/27/2004	1521	09/29/2004	0452

Subject:	NSA/METTWR/C1 - Instrument problem, Contamination, False signal
DataStreams:	nsamettwr4hC1.b1
Description:	Heavy, wet and blowing snow and ice caused measurement problems with the sonic anemometer mounted at the 2m level. Erroneous readings caused both the wind speed and direction values to be reported anomolously. Once the heavy, wet snow and ice stopped the readings returned to normal.
Measurements:	nsamettwr4hC1.b1: SonicWD_SDU_WVT SonicWS_U_WVT SonicWS_S_WVT SonicS_AVG SonicY_AVG SonicWD_DU_WVT SonicX_AVG

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DQRID : D041011.2

Start Date	Start Time	End Date	End Time
07/19/2004	1500	09/08/2004	2321

Subject:	NSA/METTWR/C1 - 20m Temperature/RH Sensor Failing
DataStreams:	nsamettwr4hC1.b1
Description:	The 20m temperature and RH sensor began reading high on 20040719. Aspirator fan failure caused a portion of the high reading. New fan failed to correct for all errors. Sensor replaced on 20040908 with recently calibrated sensor.
Measurements:	nsamettwr4hC1.b1: DP20M_STD Temperature, dew point, average, at 20-m height(DP20M_AVG) Pressure, vapor, at 20-m height(VP20M_AVG) Temperature, air, average, at 20-m height(T20M_AVG) RH20M_STD Relative humidity, average, at 20-m height(RH20M_AVG) VP20M_STD T20M_STD

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DQRID : D041020.1

Start Date	Start Time	End Date	End Time
10/19/2004	0600	10/19/2004	1200

Subject:	NSA/METTWR/C1 - Sonic - Instrument problem, Contamination, False signal
DataStreams:	nsamettwr4hC1.b1
Description:	Heavy, wet and blowing snow and ice caused measurement problems with the sonic anemometer mounted at the 2m level. Erroneous readings caused both the wind speed and direction values to be reported anomolously. Once the heavy, wet snow and ice stopped the readings returned to normal.
Measurements:	nsamettwr4hC1.b1: SonicWD_SDU_WVT SonicWS_U_WVT SonicWS_S_WVT SonicS_AVG SonicY_AVG SonicWD_DU_WVT SonicX_AVG

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DQRID : D041101.1

Start Date	Start Time	End Date	End Time
10/23/2004	0245	11/02/2004	2325

Subject:	NSA/METTWR/C1 - Instrument problem, Frosting/Condensation
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m T & RH values were not in very good agreement with the CMH data or the other tower levels. A failed aspirator fan caused the readings to be incorrect.
Measurements:	nsamettwr4hC1.b1: Temperature, dew point, average, at 2-m height(DP2M_AVG) Temperature, air, average, at 2-m height(T2M_AVG) RH2M_STD Relative humidity, average, at 2-m height(RH2M_AVG) DP2M_STD T2M_STD VP2M_STD Pressure, vapor, at 2-m height(VP2M_AVG)

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DQRID : D041214.1

Start Date	Start Time	End Date	End Time
12/13/2004	2002	04/26/2005	1902

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: Pressure, vapor, at 10-m height(VP10M_AVG) RH10M_STD T10M_STD Wind speed, mean, at 10-m height(WS10M_S_WVT) Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) VP10M_STD DP10M_STD WD10M_SDU_WVT Temperature, dew point, average, at 10-m height(DP10M_AVG) Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) RefT10m_AVG Relative humidity, average, at 10-m height(RH10M_AVG) Temperature, air, average, at 10-m height(T10M_AVG) Volt10M_AVG

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DQRID : D041216.3

Start Date	Start Time	End Date	End Time
12/15/2004	0302	12/20/2004	2008

Subject:	NSA/METTWR/C1 - Instrument problem
DataStreams:	nsamettwr4hC1.b1
Description:	2m wind direction reporting only 236 degrees. Sensor failure.
Measurements:	nsamettwr4hC1.b1: WD2M_SDU_WVT Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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DQRID : D041216.4

Start Date	Start Time	End Date	End Time
12/13/2004	2003	12/16/2004	1922

Subject:	NSA/METTWR/C1 - Reprocess: Incorrect windspeed units
DataStreams:	nsamettwr4hC1.b1
Description:	Power fluctuations caused the Ultrasonic wind sensor to revert to default setting of reporting wind speed in mph. Setting was changed back to m/s.
Measurements:	nsamettwr4hC1.b1: SonicWS_U_WVT SonicWS_S_WVT SonicS_AVG SonicY_AVG SonicX_AVG

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DQRID : D050110.3

Start Date	Start Time	End Date	End Time
01/08/2005	1545	01/10/2005	1110

Subject:	NSA/METTWR/C1 - Instrument problem, Contamination, False signal
DataStreams:	nsamettwr4hC1.b1
Description:	Data in error due to heavy snow during blizzard conditions.
Measurements:	nsamettwr4hC1.b1: SonicWD_SDU_WVT SonicWS_U_WVT SonicWS_S_WVT SonicS_AVG SonicY_AVG SonicWD_DU_WVT SonicX_AVG

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DQRID : D050112.1

Start Date	Start Time	End Date	End Time
12/13/2004	1000	12/13/2004	2330

Subject:	NSA/C1 - Site-wide power failure
DataStreams:	nsamplC1.a1, nsamwrpC1.b1, nsamplpsC1.a0, nsamwrlosC1.b1, nsamwrtipC1.a1, nsaaerich1C1.b1, nsaaerich2C1.b1, nsammcrmomC1.b1, nsamettwr4hC1.b1, nsavceil25kC1.b1, nsatwrcam40mC1.a1, nsaaerisummaryC1.b1, nsaaeriengineerC1.b1, nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindspecC1.a0
Description:	The Barrow facility experienced a site-wide power failure on 12/13. Power was restored to most instruments between 2250 and 2330 GMT.
Measurements:	nsa915rwpwindspecC1.a0: Backscatter, doppler spectrum, 915 MHz RWP(spc_amp) alt plen ncoh tditime bswitch time_offset nspc sitime vband bins elevation dly lon nheight sampr base_time height_t range_gate prf rgs oband pcbits vsr spcavetim ipp beam lat rgl rgf nsa915rwpwindconC1.a1: Eastward Wind Component(u_wind) lon nspc power avgint rgs snr3 snr4 snr0 snr1 snr2 dly vvsr Wind direction, horizontal, at altitude, 915 MHz RWP(dir) oband tditime rgl rgf range_gate ncoh time_offset lat prf base_time ovsr azimuth1 azimuth0 azimuth3 azimuth2 Beam 2 radial wind speed(vel2) Beam 1 radial wind speed(vel1) azimuth4 Beam 4 radial wind speed(vel4) Beam 3 radial wind speed(vel3) sampr Beam 0 radial wind speed(vel0) ipp nrcns4 nrcns3 nrcns2 nrcns1 nrcns0 ncns1 ncns0 ncns3 ncns2 ncns4 sitime Wind speed, horizontal, at altitude, 915 MHz RWP(spd) plen spcavetim alt nheight nrec0 nrec1 nrec2 nrec3 nrec4 elevation0 Northward Wind Component(v_wind) elevation2 elevation1 elevation4 elevation3 height_p vband pcbits bswitch nsaaerich2C1.b1: Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad) AERIunitNumber calibratedSceneID timeHHMMSS wnum2 Time_UTC_hours systemReleaseNumber channelNumber time_offset base_time alt Longitude BBsupportStructureTemp atmosphericRelativeHumidity missingDataFlag calibrationCBBtemp instrumentUnitNumber Latitude sceneMirrorAngle dateYYMMDD calibrationAmbientTemp atmosphericPressure wnum outsideAirTemp calibrationHBBtemp lat hatchOpen JulianDay sceneViewDuration standard_dev_mean_rad time lon sceneMirPosEncoderMaxDrift Altitude nsamwrlosC1.b1: Temperature, Sky Infra-Red(sky_ir_temp) wet_window 31.4 GHz sky brightness temperature(tbsky31) Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) tkbb alt tnd_nom31 tnd_nom23 bb23 bb31 time_offset tc23 tc31 tknd lat actel tnd23 tnd31 tkxc Temperature, brightness, longwave(ir_temp) sky23 bbn23 base_time sky31 bbn31 actaz tkair lon Total liquid water along LOS path(liq) Total water vapor along LOS path(vap) nsaaerisummaryC1.b1: sceneMirPosEncoderMaxDrift skyViewStdDevRadiance675_680 Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680) JulianDay SWskyNENacceptable channelNumber calibrationAmbientTemp LW_HBB_NEN Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287) LWskyNEN Latitude lon systemReleaseNumber skyViewStdDevRadiance985_990 AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1) AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2) outsideAirTemp wnumsum7 wnumsum6 wnumsum5 wnumsum4 wnumsum3 wnumsum2 wnumsum1 wnumsum9 wnumsum8 HBB2minNENestimateNo1Ch1 HBB2minNENestimateNo1Ch2 HBBstable Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990) LWresponsivity maxSampleStdDev lat Altitude dataAvailable instrumentUnitNumber time_offset calibrationHBBtemp atmosphericPressure LWskyNENacceptable Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 5.5-18 um(SkyUniformityCh1) Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyUniformityCh2) time calibratedSceneID atmosphericRelativeHumidity sceneViewDuration Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyBrightnessTempSpectralAveragesCh2) sceneMirPosEncoderDrift Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 5.5-18 um(SkyBrightnessTempSpectralAveragesCh1) ResponsivitySpectralAveragesCh1 ResponsivitySpectralAveragesCh2 SkyNENCh1 SkyNENCh2 hatchOpen Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287) SW_HBB_NEN sceneMirrorAngle Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515) Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705) Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515) HBB2minNENestimateNo2Ch2 HBB2minNENestimateNo2Ch1 skyViewStdDevRadiance2510_2515 dateYYMMDD alt Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300) base_time skyViewStdDevRadiance2282_2287 Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300) SWskyNEN wnumsum11 wnumsum12 wnumsum13 wnumsum14 wnumsum10 skyViewStdDevRadiance700_705 SWresponsivity Longitude HBBtempDrift sunSensorIntensity Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680) missingDataFlag ABBmaxTempDiff Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705) HBBmaxTempDiff timeHHMMSS AERIunitNumber skyViewStdDevRadiance2295_2300 frontEndFanAirTempDiff calibrationCBBtemp Time_UTC_hours rainSensorIntensity Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990) nsa915rwptempmomC1.a0: base_time rgs noise snr Pressure, associated geometric height, at altitude, NGM model output(height) Temperature, virtual, profile, merged from 50 and 915 MHz RASS(virtual_temp) mdf smdf lon time_offset sampr Spectral Width(specw) alt ssnr sspecw lat nsaaerich1C1.b1: lon Time_UTC_hours atmosphericPressure JulianDay sceneMirrorAngle hatchOpen outsideAirTemp Longitude dateYYMMDD time sceneViewDuration Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad) sceneMirPosEncoderMaxDrift timeHHMMSS base_time calibrationCBBtemp Latitude calibrationHBBtemp missingDataFlag instrumentUnitNumber atmosphericRelativeHumidity systemReleaseNumber channelNumber wnum2 lat BBsupportStructureTemp standard_dev_mean_rad Altitude wnum calibratedSceneID AERIunitNumber alt time_offset calibrationAmbientTemp nsamplpsC1.a0: range_bin_time background_signal time shots_summed lat voltage_15 max_altitude voltage_05 voltage_10 pulse_rep instrument_temp detector_temp Pressure, associated geometric height, at altitude, NGM model output(height) laser_temp time_offset range_offset range filter_temp Preliminary cloud base height above ground level(preliminary_cbh) energy_monitor alt range_bins detector_counts base_time lon range_bin_width nsavceil25kC1.b1: status_string Backscatter(backscatter) Lowest cloud base height detected.(first_cbh) tilt_angle base_time Second lowest cloud base height(second_cbh) detection_status alt_highest_signal window_contamination receiver_sensitivity Vertical visibility(vertical_visibility) laser_temperature alt time_offset filename lat laser_pulse_energy sum_backscatter status_flag lon background_light Third cloud base height(third_cbh) measurement_parameters range nsa915rwptempspecC1.a0: Pressure, associated geometric height, at altitude, NGM model output(height) sampr rgs lat lon base_time time_offset alt Backscatter, doppler spectrum, 915 MHz RWP(spc_amp) bins nsa915rwptempconC1.a1: SNR Corrected Beam 0 Virtual Temperature(snr_virtual_temp_corr) ncns_virtual_temp SNR Beam 0 Virtual Temperature(snr_virtual_temp) Pressure, associated geometric height, at altitude, NGM model output(height) rgs ncns_vert_v ncns_virtual_temp_corr time_offset Temperature, virtual, profile, merged from 50 and 915 MHz RASS(virtual_temp) Wind speed, vertical velocity, at altitude, 915 MHz RWP(vert_v) lat nrcns base_time SNR Vertical wind velocity(snr_vert_v) sampr lon Temperature, virtual, at altitude, 10-min cons. avg, corrected, 915 MHz RWP/RASS(virtual_temp_corr) avgint alt nrec nsaaeriengineerC1.b1: BBcontroller2temp skyViewImaginaryRadiance2295_2300 ABBtempOffset HBBmaxTempDiff skyViewImaginaryRadiance2510_2515 detectorTemp coadditionsCount calibrationHBBtemp Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680) HBBapexTemp skyViewStdDevRadiance985_990 ABBviewStdDevRadiance2295_2300 systemReleaseNumber skyViewStdDevRadiance2510_2515 base_time ABBviewStdDevRadiance985_990 timeHHMMSS sceneMirrorAngle LW_HBB_NEN spareTemp HBBstable Latitude sceneMirPosEncoderMaxDrift Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287) channelNumber HBBviewStdDevRadiance700_705 outsideAirTemp HBBviewStdDevRadiance2510_2515 rackAmbientTemp calibratedSceneID frontEndFanAirHeatedTemp HBBtempOffset instrumentUnitNumber ABBtopTemp skyViewImaginaryRadiance700_705 fixed2500ohmResistor missingDataFlag time_offset fixed97KohmResistor LWskyNEN HBBapexTempWeight ABBbottomTempWeight expandedInterferogramSize Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515) coolerCurrent ABBviewStdDevRadiance700_705 HBBbottomTemp frontEndFanAirUnheatedTemp computerTemp lon LWresponsivity calibrationAmbientTemp interferometerSecondPortTemp skyViewStdDevRadiance700_705 Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705) interferometerEnclosureRelativeHumidity originalInterferogramSize HBBviewStdDevRadiance985_990 maxSampleStdDev Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515) motorDriverTemp SWskyNENlimit Longitude alt HBBviewStdDevRadiance675_680 HBBviewStdDevRadiance2282_2287 ABBapexTemp hatchOpen skyViewImaginaryRadiance2282_2287 ABBbottomTemp AERIunitNumber Altitude LWskyNENacceptable sceneMirPosCount sceneMirrorMotorStep SWresponsivity lat originalLaserWavenumber Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300) Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990) ABBviewStdDevRadiance675_680 BBsupportStructureTemp HBBviewStdDevRadiance2295_2300 sceneMirPosEncoder rainSensorIntensity twoMinuteNoiseEstimateFactor skyViewImaginaryRadiance985_990 SCEtemp sceneViewDuration ABBviewStdDevRadiance2282_2287 skyViewImaginaryRadiance675_680 BBcontroller1temp dateYYMMDD HBBtopTempWeight airNearBBsTemp ABBmaxTempDiff HBBtempDriftLimit Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300) BBcavityFactor coolerCompressorTemp sceneMirrorTemp coolerExpanderTemp coolerPowerSupplyTemp dataAvailable skyViewStdDevRadiance675_680 Time_UTC_hours Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990) HBBtempDrift sunSensorIntensity atmosphericRelativeHumidity sceneMirrorPosition ABBviewStdDevRadiance2510_2515 atmosphericPressure HBBtopTemp skyViewStdDevRadiance2282_2287 SWskyNENacceptable time JulianDay ABBapexTempWeight Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680) SW_HBB_NEN ABBtopTempWeight LWskyNENlimit fixed12KohmResistor SWskyNEN airNearInterferometerTemp Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705) mirrorMotorTemp Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287) FFOVhalfAngle interferometerWindowTemp sceneMirPosEncoderDrift skyViewStdDevRadiance2295_2300 HBBbottomTempWeight calibrationCBBtemp outputLaserWavenumber opticsCompartmentRelativeHumidity numberOfTerms frontEndFanAirTempDiff nsamplC1.a1: range_bin_time detector_temp total_counts scalar_sync_offset Pressure, associated geometric height, at altitude, NGM model output(height) transceiver_azimuth_angle time_offset laser_sync_offset Preliminary cloud base height above ground level(preliminary_cbh) voltage_10 voltage_15 voltage_05 trigger_freq time instrument_temp shots_sum filter_temp Backscatter(backscatter) alt lon base_time pulse_rep background_signal deadtime_correction laser_scalar_sync_offset lat range max_altitude range_bin_width energy_monitor range_offset shots_summed property laser_temp transceiver_altitude_angle range_bins nsammcrmomC1.b1: ReceiverNumber CalCheckTime RxCalTimeStamp TWTStatusCode DCFilterONOFF base_time NumCodeBits MMCR Mean Doppler Velocity(MeanDopplerVelocity) WindowingONOFF NumFFT ReceiverMode GateSpacing NumHeights heights CalCheckLevel PulseWidth NumSpectralAverages SkyNoiseLevel Power DataQualityStatus SignalToNoiseRatio ClutterHeight ModeNum NumCoherentIntegrations MinimumDetectableReflectivity time_offset Cloud, reflectivity, at altitude(Reflectivity) Rx290KLevel lon NyquistVelocity ModeDescription PeakTransmittedPowerAvg TimeAvg StartGateDelay InterPulsePeriod lat alt RxGain time NumReceivers RangeCorrectedPower MMCR Spectral Width(SpectralWidth) AvgNoiseLevel NoiseLevel CircularDepolarizationRatio RadarConstant nsamettwr4hC1.b1: lat SonicWD_SDU_WVT RH10M_STD VP10M_STD Relative humidity, average, at 10-m height(RH10M_AVG) Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) Temperature, dew point, average, at 2-m height(DP2M_AVG) Pressure, vapor, at 2-m height(VP2M_AVG) Pressure, vapor, at 20-m height(VP20M_AVG) Temperature, dew point, average, at 10-m height(DP10M_AVG) CMHTemp VP20M_STD DP20M_STD Wind speed, mean, at 2-m height(WS2M_S_WVT) Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT) RefT10m_AVG DP40M_STD Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) Wind speed, mean, at 40-m height(WS40M_S_WVT) time RefT40M_AVG DP10M_STD PWSAlarm WD40M_SDU_WVT alt RefT2M_AVG Wind speed, vector-averaged, at 20-m height(WS20M_U_WVT) SatVPCMH PwCod1hr lon Temperature, air, average, at 10-m height(T10M_AVG) Temperature, dew point, average, at 20-m height(DP20M_AVG) SonicS_AVG T40M_STD VPCMH DP2M_STD RH40M_STD RefT20M_AVG VP40M_STD PcpRate base_time Pressure, atmospheric(AtmPress) SonicX_AVG Visibility, 1 minute average(AvgVis1mi) WD2M_SDU_WVT Wind direction, vector-averaged, at 20-m height(WD20M_DU_WVT) Visibility, 10 minute average(AvgVis10m) CMHDP Temperature, air, average, at 20-m height(T20M_AVG) T10M_STD CumH2O CumSnow PwCod15mi T20M_STD Volt10M_AVG SonicY_AVG Relative humidity, average, at 40-m height(RH40M_AVG) WD10M_SDU_WVT WD20M_SDU_WVT SonicWD_DU_WVT Temperature, air, average, at 40-m height(T40M_AVG) Wind speed, mean, at 10-m height(WS10M_S_WVT) Pressure, vapor, at 10-m height(VP10M_AVG) InstPwCod Volt40M_AVG Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) RH2M_STD Batt_Volt Relative humidity, average, at 2-m height(RH2M_AVG) Wind speed, vector-averaged, at 40-m height(WS40M_U_WVT) T2M_STD Temperature, air, average, at 2-m height(T2M_AVG) Temperature, dew point, average, at 40-m height(DP40M_AVG) VP2M_STD time_offset SonicWS_U_WVT RH20M_STD Pressure, vapor, at 40-m height(VP40M_AVG) Relative humidity, average, at 20-m height(RH20M_AVG) Wind speed, mean, at 20-m height(WS20M_S_WVT) Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT) Volt20M_AVG Volt2M_AVG SonicWS_S_WVT CMHRH nsamwrpC1.b1: azimuth Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity) alt frequency Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature) elevation Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent) Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity) Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2) Pressure, lifting condensation level(liftingCondensationLevelPres) Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2) Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater) base_time totalPrecipitableWaterRmsError Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature) Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity) liquidWaterContentRmsError blackbodyTemperature Height, level of free convection(levelFreeConvection) Retrieved dewpoint temperature(dewpointTemperature) lon time temperatureRmsError Retrieved water vapor mixing ratio(waterVaporMixingRatio) Air temperature(temperature) time_offset Microwave brightness temperature(brightnessTemperature) Height, lifting condensation level(liftingCondensationLevel) Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight) Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity) Height, equilibrium level(equilibriumLevel) Barometric pressure(pressure) Pressure, barometric. at instrument height (1 or 2 m)(surfacePressure) Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath) Pressure, associated geometric height, at altitude, NGM model output(height) lat liquidWaterPathRmsError Pressure, equilibrium level(equilibriumLevelPres) totalPrecipitableWater2RmsError waterVaporDensityRmsError infraredTemperature dataQualityFlags Pressure, level of free convection(levelFreeConvectionPres) Energy, potential, convective, available, from RUC model(cape) liquidWaterPath2RmsError wetWindowFlag nsa915rwpwindmomC1.a0: snr oband bswitch lon beam base_time vband spcavetime pcbits ipp mdf plen nheight alt dly time_offset vsr elevation nspc Spectral Width(specw) sitime ncoh tditime range_gate prf noise height_t lat sampr rgl rgs rgf nsamwrtipC1.a1: tbskytip31 tnd23I tbskytip23 r31 lon r23 lat tnd23 tnd31 wet_window tknd tkxc alt tkbb bb23 time_offset bb31 tc31 base_time tnd31I tc23 tnd_nom23 tnd_nom31 actaz liqtip actel tipsky31 tipsky23 tkair vaptip bbn31 bbn23 nsatwrcam40mC1.a1: JPEG data stream - documentation not yet available

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DQRID : D050124.2

Start Date	Start Time	End Date	End Time
01/10/2005	2213	01/20/2005	2100

Subject:	NSA/METTWR/C1 - CMH data intermittently poor
DataStreams:	nsamettwr4hC1.b1
Description:	CMH aspirator fan intermittently failed causing higher than actual temperature and dew point readings.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D050527.2

Start Date	Start Time	End Date	End Time
10/31/2003	0000	05/26/2005	1014

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: PcpRate CumH2O

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DQRID : D050727.1

Start Date	Start Time	End Date	End Time
05/28/2005	0630	07/19/2005	1934

Subject:	NSA/METTWR/C1 - CMH mirror dirty
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH mirror was in need of cleaning. The data is suspect from 05/28/05 through 07/04/05 as intermittently poor readings occurred. After 07/04/05 the data was incorrect as the mirror was excessively dirty.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D050829.2

Start Date	Start Time	End Date	End Time
08/22/2005	1800	08/27/2005	0148

Subject:	NSA/METTWR/C1 - Tower Maintenance
DataStreams:	nsamettwr4hC1.b1
Description:	The booms of the tower were lowered for sensor replacement, calibration, and tower maintenance. During the maintenance and sensor replacement data are frequently missing. Where data are available, they are not or may not be representative because the booms were at the base of the tower during the time period listed. The chilled mirror measurements were not affected by the maintenance.
Measurements:	nsamettwr4hC1.b1: Pressure, vapor, at 10-m height(VP10M_AVG) Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) T2M_STD DP2M_STD Pressure, vapor, at 20-m height(VP20M_AVG) SonicWD_DU_WVT WD40M_SDU_WVT VP10M_STD Temperature, air, average, at 2-m height(T2M_AVG) RH40M_STD Temperature, dew point, average, at 40-m height(DP40M_AVG) Temperature, dew point, average, at 10-m height(DP10M_AVG) RefT20M_AVG Relative humidity, average, at 10-m height(RH10M_AVG) VP2M_STD VP40M_STD Visibility, 1 minute average(AvgVis1mi) Temperature, air, average, at 10-m height(T10M_AVG) Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT) Wind speed, mean, at 40-m height(WS40M_S_WVT) SonicWS_U_WVT RefT40M_AVG Temperature, air, average, at 40-m height(T40M_AVG) RH20M_STD T20M_STD PwCod1hr DP10M_STD Volt20M_AVG InstPwCod Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) PWSAlarm Volt10M_AVG PcpRate DP20M_STD WD2M_SDU_WVT Volt40M_AVG Wind speed, mean, at 10-m height(WS10M_S_WVT) Temperature, dew point, average, at 20-m height(DP20M_AVG) Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) Temperature, air, average, at 20-m height(T20M_AVG) Temperature, dew point, average, at 2-m height(DP2M_AVG) RH2M_STD Wind direction, vector-averaged, at 20-m height(WD20M_DU_WVT) SonicS_AVG RefT2M_AVG SonicY_AVG Pressure, vapor, at 40-m height(VP40M_AVG) Relative humidity, average, at 20-m height(RH20M_AVG) Volt2M_AVG Pressure, vapor, at 2-m height(VP2M_AVG) SonicX_AVG SonicWD_SDU_WVT RH10M_STD T10M_STD Relative humidity, average, at 2-m height(RH2M_AVG) Relative humidity, average, at 40-m height(RH40M_AVG) Wind speed, mean, at 2-m height(WS2M_S_WVT) Wind speed, vector-averaged, at 20-m height(WS20M_U_WVT) CumH2O WD10M_SDU_WVT T40M_STD WD20M_SDU_WVT CumSnow Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT) SonicWS_S_WVT Wind speed, vector-averaged, at 40-m height(WS40M_U_WVT) RefT10m_AVG Visibility, 10 minute average(AvgVis10m) Wind speed, mean, at 20-m height(WS20M_S_WVT) PwCod15mi VP20M_STD DP40M_STD

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DQRID : D050906.1

Start Date	Start Time	End Date	End Time
09/05/2005	2221	09/06/2005	1918

Subject:	NSA/METTWR/C1 - CMH and PWS data missing
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH and PWS data are missing and unrecoverable. A GFCI was tripped causing a loss of power to these sensors. The CMH came back online at 1916 GMT and the PWS came back online at 1918 GMT.
Measurements:	nsamettwr4hC1.b1: VPCMH PcpRate SatVPCMH CMHDP CumH2O CMHTemp PwCod1hr InstPwCod CumSnow PWSAlarm Visibility, 10 minute average(AvgVis10m) Visibility, 1 minute average(AvgVis1mi) PwCod15mi CMHRH

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DQRID : D050920.5

Start Date	Start Time	End Date	End Time
09/19/2005	1416	09/21/2005	2203

Subject:	NSA/METTWR/C1 - CMH Data Missing
DataStreams:	nsamettwr4hC1.b1
Description:	Data from CMH was missing due to a corroded RS-232 9-Pin connector.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D051011.1

Start Date	Start Time	End Date	End Time
10/09/2005	1620	10/11/2005	0012

Subject:	NSA/METTWR/C1 - 2m wind Direction Sensor Failed
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m cup wind direction flat lined at 236 degrees. Sensor failed.
Measurements:	nsamettwr4hC1.b1: WD2M_SDU_WVT Wind speed, mean, at 2-m height(WS2M_S_WVT) Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT) Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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DQRID : D051025.2

Start Date	Start Time	End Date	End Time
10/31/2003	0000	09/14/2005	1420

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: VPCMH PcpRate SatVPCMH CMHDP CumH2O CMHTemp PwCod1hr InstPwCod CumSnow PWSAlarm Visibility, 10 minute average(AvgVis10m) Pressure, atmospheric(AtmPress) Visibility, 1 minute average(AvgVis1mi) PwCod15mi CMHRH

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DQRID : D051101.4

Start Date	Start Time	End Date	End Time
10/31/2003	0000	10/20/2005	1900

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: Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) Wind direction, vector-averaged, at 20-m height(WD20M_DU_WVT) Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) SonicWD_DU_WVT Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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DQRID : D060119.1

Start Date	Start Time	End Date	End Time
01/09/2006	0120	01/09/2006	2330

Subject:	NSA/METTWR/C1 - CMH Data Not Representative
DataStreams:	nsamettwr4hC1.b1
Description:	The intake of the CMH was blocked with hoar frost. The temperatures measured by the chilled mirror and the temperature probe were not representative of the ambient conditions as a result. The RH data calculated from these values is incorrect also.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D060215.4

Start Date	Start Time	End Date	End Time
02/15/2006	1204	02/15/2006	2222

Subject:	NSA/METTWR/C1 - CMH Data missing
DataStreams:	nsamettwr4hC1.b1
Description:	CMH dew point and temp data was missing. Since Dew Point and Temp data missing RH% value = 100% during outage. Corrosion on power plug was athe problem.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D060220.1

Start Date	Start Time	End Date	End Time
02/19/2006	1829	02/20/2006	0400

Subject:	NSA/METTWR/C1 - Ultrasonic Wind Sensor Values Incorrect
DataStreams:	nsamettwr4hC1.b1
Description:	The values collected from the ultrasonic wind sensor were intermittently incorrect. Heavy wet snow during blizzard condition was interfering with the ultrasonic readings.
Measurements:	nsamettwr4hC1.b1: SonicWD_SDU_WVT SonicWS_U_WVT SonicWS_S_WVT SonicS_AVG SonicY_AVG SonicWD_DU_WVT SonicX_AVG

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DQRID : D060220.2

Start Date	Start Time	End Date	End Time
02/19/2006	1632	02/20/2006	2137

Subject:	NSA/METTWR/C1 - PWS data missing due to blizzard
DataStreams:	nsamettwr4hC1.b1
Description:	PWS was offline and data was missing. A blizzard consisting of heavy wet snow and strong winds caused snow impaction in the optics. The PWS reported missing data as it was unable to measure anything meaningful.
Measurements:	nsamettwr4hC1.b1: PcpRate InstPwCod CumSnow Visibility, 10 minute average(AvgVis10m) PWSAlarm Visibility, 1 minute average(AvgVis1mi) PwCod15mi PwCod1hr

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DQRID : D060224.1

Start Date	Start Time	End Date	End Time
02/19/2006	2010	02/20/2006	0934

Subject:	NSA/METTWR/C1 - 2m Wind Speed Artificially Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m wind speed values were artificially low due to snow impaction during a heavy blizzard. The cup anemometer heaters could not keep up with the rapid deposition of snow.
Measurements:	nsamettwr4hC1.b1: Wind speed, mean, at 2-m height(WS2M_S_WVT) Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT)

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DQRID : D060303.2

Start Date	Start Time	End Date	End Time
02/28/2006	0700	03/06/2006	2100

Subject:	NSA/METTWR/C1 - CMH temp inaccurate
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH Temperature was consistently 4-7 degrees warmer than the 2M, 40M, 20M, and 10M temp. Intake fan failure; fan was replaced.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D060323.1

Start Date	Start Time	End Date	End Time
01/02/2006	0500	01/06/2006	1745
01/14/2006	1202	01/23/2006	1140

Subject:	NSA/METTWR/C1 - 10m Wind Speed Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 10m wind speed values are too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) Wind speed, mean, at 10-m height(WS10M_S_WVT)

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DQRID : D060323.2

Start Date	Start Time	End Date	End Time
01/09/2006	1030	01/13/2006	0402

Subject:	NSA/METTWR/C1 - 10m Wind Speed Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 10m wind speeds are intermittently too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) Wind speed, mean, at 10-m height(WS10M_S_WVT)

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DQRID : D060323.3

Start Date	Start Time	End Date	End Time
01/10/2006	0600	01/13/2006	0402
01/26/2006	1602	01/27/2006	0516
02/03/2006	0020	02/05/2006	0540

Subject:	NSA/METTWR/C1 - 40m Wind Speeds Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 40m wind speed values were too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: Wind speed, mean, at 40-m height(WS40M_S_WVT) Wind speed, vector-averaged, at 40-m height(WS40M_U_WVT)

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DQRID : D060323.4

Start Date	Start Time	End Date	End Time
01/12/2006	0812	01/13/2006	0402
02/03/2006	0115	02/03/2006	1603

Subject:	NSA/METTWR/C1 - 20m Wind Speeds Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 20m wind speeds were artificially low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: Wind speed, vector-averaged, at 20-m height(WS20M_U_WVT) Wind speed, mean, at 20-m height(WS20M_S_WVT)

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DQRID : D060426.5

Start Date	Start Time	End Date	End Time
03/23/2006	2250	03/25/2006	0036

Subject:	NSA/METTWR/C1 - CMH Data Missing
DataStreams:	nsamettwr4hC1.b1
Description:	CMH data was missing due to it being removed for maintenance.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D060426.6

Start Date	Start Time	End Date	End Time
03/25/2006	0037	04/11/2006	1811

Subject:	NSA/METTWR/C1 - CMH Data Suspect
DataStreams:	nsamettwr4hC1.b1
Description:	CMH data was suspect due to incorrect calibration caused by procedural errors. The procedures were corrected and a new calibration completed.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D060526.3

Start Date	Start Time	End Date	End Time
05/25/2006	0300	06/01/2006	0000

Subject:	NSA/METTWR/C1 - Wind direction measurements suspect
DataStreams:	nsamettwr4hC1.b1
Description:	20m wind direction standard deviation was 0 degrees for extended periods of time. This suggests the wind vane was icing up.
Measurements:	nsamettwr4hC1.b1: Wind direction, vector-averaged, at 20-m height(WD20M_DU_WVT) WD20M_SDU_WVT

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DQRID : D060817.4

Start Date	Start Time	End Date	End Time
10/31/2003	0000	07/12/2006	1608

Subject:	NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:	nsamettwr4hC1.b1
Description:	Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community.
Measurements:	nsamettwr4hC1.b1: Pressure, atmospheric(AtmPress)

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DQRID : D060913.6

Start Date	Start Time	End Date	End Time
06/13/2006	2145	06/13/2006	2335

Subject:	NSA/METTWR/C1 - Present Weather Sensor data missing or incorrect due to calibration.
DataStreams:	nsamettwr4hC1.b1
Description:	The Present Weather Sensor data was missing or incorrect due to calibration checks.
Measurements:	nsamettwr4hC1.b1: PcpRate InstPwCod CumSnow Visibility, 10 minute average(AvgVis10m) PWSAlarm Visibility, 1 minute average(AvgVis1mi) PwCod15mi CumH2O PwCod1hr

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DQRID : D061003.1

Start Date	Start Time	End Date	End Time
09/25/2006	2234	10/04/2006	2347

Subject:	NSA/METTWR/C1 - All data from 10m Level Missing
DataStreams:	nsamettwr4hC1.b1
Description:	The winch that lowers the tower booms failed. Manual testing of the motor and winch allowed the booms to be lowered briefly and then raised back into position. A heavy freezing rain/icing event added extra weight to the booms. This extra weight was suspected as the cause as to why the 10m boom became disconnected. After a new motor was installed and all booms were lowered and re-raised the 10m level came back on line.
Measurements:	nsamettwr4hC1.b1: Pressure, vapor, at 10-m height(VP10M_AVG) RH10M_STD T10M_STD Wind speed, mean, at 10-m height(WS10M_S_WVT) Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) VP10M_STD DP10M_STD WD10M_SDU_WVT Temperature, dew point, average, at 10-m height(DP10M_AVG) Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) RefT10m_AVG Relative humidity, average, at 10-m height(RH10M_AVG) Temperature, air, average, at 10-m height(T10M_AVG) Volt10M_AVG

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DQRID : D061012.2

Start Date	Start Time	End Date	End Time
10/12/2006	0351	10/14/2006	0038

Subject:	NSA/METTWR/C1 - Missing CMH data
DataStreams:	nsamettwr4hC1.b1
Description:	CMH data are missing. Corrosion in the serial data line connections caused a loss of communication with the CMH.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D061023.1

Start Date	Start Time	End Date	End Time
10/18/2006	1840	10/23/2006	2230

Subject:	NSA/METTWR/C1 - 10m level loss of power
DataStreams:	nsamettwr4hC1.b1
Description:	The 10 meter instrument level lost power so all variables from this level are missing.
Measurements:	nsamettwr4hC1.b1: Pressure, vapor, at 10-m height(VP10M_AVG) RH10M_STD T10M_STD Wind speed, mean, at 10-m height(WS10M_S_WVT) Wind direction, vector-averaged, at 10-m height(WD10M_DU_WVT) VP10M_STD DP10M_STD WD10M_SDU_WVT Temperature, dew point, average, at 10-m height(DP10M_AVG) Wind speed, vector-averaged, at 10-m height(WS10M_U_WVT) RefT10m_AVG Relative humidity, average, at 10-m height(RH10M_AVG) Temperature, air, average, at 10-m height(T10M_AVG) Volt10M_AVG

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DQRID : D061025.1

Start Date	Start Time	End Date	End Time
10/18/2006	2240	10/23/2006	2230

Subject:	NSA/METTWR/C1 - 2m T/RH probe aspirator fan failed
DataStreams:	nsamettwr4hC1.b1
Description:	The aspirator fan for the 2m level T/RH probe failed. This caused higher than normal readings for temp and RH and artificially smoothed the data.
Measurements:	nsamettwr4hC1.b1: Temperature, dew point, average, at 2-m height(DP2M_AVG) Temperature, air, average, at 2-m height(T2M_AVG) RH2M_STD Relative humidity, average, at 2-m height(RH2M_AVG) DP2M_STD T2M_STD VP2M_STD Pressure, vapor, at 2-m height(VP2M_AVG)

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DQRID : D061128.2

Start Date	Start Time	End Date	End Time
11/24/2006	2336	11/27/2006	0253

Subject:	NSA/METTWR/C1 - Wind direction sensor frozen
DataStreams:	nsamettwr4hC1.b1
Description:	After a power outage the 40m wind direction sensor was frozen. Data from this sensor was not representative of the true winds.
Measurements:	nsamettwr4hC1.b1: Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) WD40M_SDU_WVT

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DQRID : D061213.1

Start Date	Start Time	End Date	End Time
12/12/2006	1500	03/14/2007	0234

Subject:	NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectly
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH temp and DP were higher than the co-located T/RH probe at the 2m level. An incorrect calibration along with a failing thermistor caused the readings to be incorrect for both measured values Temp and Dew Point.
Measurements:	nsamettwr4hC1.b1: VPCMH CMHDP CMHTemp CMHRH

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DQRID : D061213.2

Start Date	Start Time	End Date	End Time
11/01/2006	0000	05/22/2007	2347

Subject:	NSA/METTWR/C1 - 40m wind sensor heater failure
DataStreams:	nsamettwr4hC1.b1
Description:	The 40m wind direction became frozen at times. The values from the sensor were flat-lined (stdev = 0) much of the time and did not match sensors from other levels.
Measurements:	nsamettwr4hC1.b1: Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) WD40M_SDU_WVT

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DQRID : D070226.1

Start Date	Start Time	End Date	End Time
11/20/2006	0030	11/27/2006	0254
12/08/2006	0125	12/14/2006	2229
12/16/2006	1545	12/21/2006	1105
12/23/2006	1612	01/18/2007	2357
01/20/2007	1357	01/29/2007	2140

Subject:	NSA/METTWR/C1 - 40m Wind Direction Data Suspect
DataStreams:	nsamettwr4hC1.b1
Description:	The 40m wind direction data was suspect due to icing on the vane or a failing shafter heater or a combination of both. The affected data can be easily seen on comparison plots with other levels data or by checking the standard deviation of the 40m wind direction. Any standard deviation of less than 0.10 degrees for the 40m level suggest a sluggish/ice affected sensor.
Measurements:	nsamettwr4hC1.b1: Wind direction, vector-averaged, at 40-m height(WD40M_DU_WVT) WD40M_SDU_WVT

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DQRID : D070413.1

Start Date	Start Time	End Date	End Time
04/09/2007	2326	10/10/2007	0004

Subject:	NSA/METTWR/C1 - PWS Data Questionable
DataStreams:	nsamettwr4hC1.b1
Description:	There was a degradation in the PWS lenses. New lenses were installed on 08/28/2007 but a proper calibration was not conducted until 10/10/2007. Data during the listed time period should be used with caution.
Measurements:	nsamettwr4hC1.b1: PcpRate InstPwCod CumSnow Visibility, 10 minute average(AvgVis10m) PWSAlarm Visibility, 1 minute average(AvgVis1mi) PwCod15mi CumH2O PwCod1hr

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DQRID : D070529.1

Start Date	Start Time	End Date	End Time
10/18/2006	0000	05/22/2007	2330

Subject:	NSA/METTWR/C1 - 20m RH Data Questionable
DataStreams:	nsamettwr4hC1.b1
Description:	The 20m RH data was questionable at times. When the data appeared to be poor was when the 2m and 20m agreed better than the 20m and the 40m and/or 10m.
Measurements:	nsamettwr4hC1.b1: DP20M_STD Temperature, dew point, average, at 20-m height(DP20M_AVG) Pressure, vapor, at 20-m height(VP20M_AVG) RH20M_STD Relative humidity, average, at 20-m height(RH20M_AVG) VP20M_STD

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DQRID : D080325.1

Start Date	Start Time	End Date	End Time
03/14/2008	2012	03/31/2008	0900

Subject:	NSA/METTWR/C1 - Intermittent missing data
DataStreams:	nsamettwr4hC1.b1
Description:	Intermittent failure of the CMH to communicate with the logging system occurred on a daily basis. This problem occurred anywhere from 4 to 8 hrs. Problem began after maintenance to replace failing aspirator fan on 03/13/2008.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D080326.2

Start Date	Start Time	End Date	End Time
01/05/2008	0000	03/27/2008	1730

Subject:	NSA/METTWR/C1 - 2m Wind Direction Sensor Freezing
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m wind direction was failing. It began to exhibit instances of no movement suggesting it was frozen. After some time it began to make erratic measurements compared to the co-located Ultrasonic and compared to the directions at the other levels.
Measurements:	nsamettwr4hC1.b1: WD2M_SDU_WVT Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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DQRID : D080408.2

Start Date	Start Time	End Date	End Time
03/07/2008	1200	03/13/2008	2345

Subject:	NSA/METTWR/C1 - CMH Intake Fan Failure
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH intake fan failed causing the dew point and temp data to be incorrect. If users need only T/RH and derived variables they can use the 2m data collected using the HMP-45D probes. CMH data are unrecoverable.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D080611.1

Start Date	Start Time	End Date	End Time
06/09/2008	2319	06/11/2008	2222

Subject:	NSA/METTWR/C1 - 2m Datalogger Failed
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m temperature, wind speed, wind direction, and relative humidity were reporting the missing value (-9999).
Measurements:	nsamettwr4hC1.b1: WD2M_SDU_WVT Relative humidity, average, at 2-m height(RH2M_AVG) Wind speed, mean, at 2-m height(WS2M_S_WVT) T2M_STD DP2M_STD Temperature, air, average, at 2-m height(T2M_AVG) Temperature, dew point, average, at 2-m height(DP2M_AVG) RH2M_STD Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT) RefT2M_AVG VP2M_STD Volt2M_AVG Pressure, vapor, at 2-m height(VP2M_AVG) Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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DQRID : D080612.1

Start Date	Start Time	End Date	End Time
05/14/2008	1500	06/20/2008	1420

Subject:	NSA/METTWR/C1 - CMH required Calibration
DataStreams:	nsamettwr4hC1.b1
Description:	The Chilled Mirror was showing some signs of being out of calibration. Temperatures were at times higher than co-located temp probes and the dew point temperature values at times were not consistent with co-located RH sensors.
Measurements:	nsamettwr4hC1.b1: VPCMH SatVPCMH CMHDP CMHTemp CMHRH

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DQRID : D080731.1

Start Date	Start Time	End Date	End Time
07/30/2008	1141	08/03/2008	2359

Subject:	NSA/METTWR/C1 - 2m level data incorrect
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m data for temp, RH, dew point, wind speed wind direction & vapor pressure were incorrect. The voltage values for the datalogger at that level were reporting as 60V with excursions to 100V. These values should have damaged the logger at that level. After an extended power outage on 08/04 the data all became reasonable. There is no explanation as to the cause of this failure.
Measurements:	nsamettwr4hC1.b1: WD2M_SDU_WVT Relative humidity, average, at 2-m height(RH2M_AVG) Wind speed, mean, at 2-m height(WS2M_S_WVT) T2M_STD DP2M_STD Temperature, air, average, at 2-m height(T2M_AVG) Temperature, dew point, average, at 2-m height(DP2M_AVG) RH2M_STD Wind speed, vector-averaged, at 2-m height(WS2M_U_WVT) RefT2M_AVG VP2M_STD Volt2M_AVG Pressure, vapor, at 2-m height(VP2M_AVG) Wind direction, vector-averaged, at 2-m height(WD2M_DU_WVT)

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