DQRID : D050824.1
Start DateStart TimeEnd DateEnd Time
07/06/2005000008/06/20052359
more
Subject:
SGP/AERI/C1 - Sampling rate changes
DataStreams:sgpaeriengineerC1.b1, sgpaerich1C1.b1, sgpaerisummaryC1.b1, sgpaerich2C1.b1
Description:
The sampling rate of the SGP.C1 AERI was changed 4 times during July and August 2005. Data 
quality is not affected but faster sampling rate means that less scans are co-added and 
the signal-to-noise ratio of the spectral data will be different.

The C1 scan rate was increased to rapid sampling mode to support efforts at the SGP. 
However, a hard drive failure occurred during rapid sampling. A second hard drive was 
installed. We tested the new drive to make sure there was no problem by running the system at 
regular sampling speed. There were no problems so the AERI sampling rate was increased to 
rapid sampling mode. However, during observation, it was noted that the computer and hard 
drive could not keep up with the rapid sampling rate and the spectral data badly lagged 
the summary files, usually by 8 spectra. This lag time could have caused hard drive 
corruption because files were still being written when the system was trying to restart at 00:00 
GMT. The solution to the problem was to increase the sampling rate. The sampling rates 
are listed below.

February 10 2005-July 5 2005 Blackbodies 46 coadds each, Sky view 90 coadds
July 6 2005 - July 22 2005 Blackbodies and Sky view 6 coadds each
July 23 2005 - July 28 2005 hard drive failure, no data
July 29 2005 - August 5 2005 Blackbodies 46 coadds each, Sky view 90 coadds
August 6 2005 - present Blackbodies and Sky view 12 coadds each

Dr. David Turner is preparing a VAP to reduce instrument noise when rapid sampling to the 
noise level of normal sampling. This VAP should correct the problem.
Suggestions: 
Measurements:sgpaerisummaryC1.b1:
  • Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Version number of Operational Software(systemReleaseNumber)
  • Observation altitude(Altitude)
  • Front end fan air temperature difference(frontEndFanAirTempDiff)
  • Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
  • AERI instrument unit serial number(AERIunitNumber)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • AERI LW scene brightness temp spectral averages (ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • AERI SW scene brightness temp spectral averages (ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm^-1(SWskyNEN)
  • Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • Relative humidity measured near Blackbodies. Use with air temperature near BBs
    only.(atmosphericRelativeHumidity)
  • Rain sensor analog output(rainSensorIntensity)
  • Character string containing instrument name(instrumentUnitNumber)
  • Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Logical flag indicating whether any data is available at current time
    (true/false)(dataAvailable)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Averaged wave number for SW HBB 2min NESR estimate number 2 (ch2)(wnumsum10)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
    Valid Range -3:Neither Open Nor Closed(hatchOpen)
  • AERI instrument data channel number(channelNumber)
  • Maximum temperature difference between ABB thermistors(ABBmaxTempDiff)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Averaged wave number for SW scene radiance spectral averages (ch2)(wnumsum12)
  • Wave number in reciprocal centimeters(wnumsum11)
  • Averaged wave number for SW scene brightness temp spectral averages (ch2)(wnumsum14)
  • Averaged Wave number in inverse centimeters(wnumsum13)
  • Observation date(dateYYMMDD)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
  • base time in epoch(base_time)
  • lon(lon)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Time offset from base_time(time_offset)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
  • Maximum temperature difference between HBB thermistors(HBBmaxTempDiff)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Observation longitude(Longitude)
  • Maximum departure from ideal of the mirror position over the course of all
    contributing views. Typically two hot, two ambient, and one scene view are
    examine(sceneMirPosEncoderMaxDrift)
  • AERI LW HBB 2min NESR estimate #2 derived from sequential HBB views (ch1)(HBB2minNENestimateNo2Ch1)
  • AERI SW HBB 2min NESR estimate #2 derived from sequential HBB views (ch2)(HBB2minNENestimateNo2Ch2)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the scene view(HBBtempDrift)
  • Observation latitude(Latitude)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI LW responsivity spectral averages (ch1)(ResponsivitySpectralAveragesCh1)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Calibrated scene type identification(calibratedSceneID)
  • Averaged Wave number in inverse centimeters(wnumsum3)
  • Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
  • Averaged wave number for SW responsivity spectral averages(wnumsum2)
  • Duration of scene view(sceneViewDuration)
  • Averaged wave number for LW responsivity spectral averages(wnumsum1)
  • Sun sensor intensity(sunSensorIntensity)
  • Averaged wave number for LW HBB 2min NESR estimate number 1 (ch1)(wnumsum7)
  • Averaged wave number for SW scene NESR spectral averages (ch2)(wnumsum6)
  • Wave number in reciprocal centimeters(wnumsum5)
  • Averaged Wave number in inverse centimeters(wnumsum4)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Averaged Wave number in inverse centimeters(wnumsum9)
  • Averaged Wave number in inverse centimeters(wnumsum8)
  • Time at center of AERI sky observation period(timeHHMMSS)
  • Julian Day including day and fraction of day(JulianDay)
  • Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW scene radiance spectral averages (ch2)(SkyRadianceSpectralAveragesCh2)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • AERI LW scene NESR spectral averages (ch1)(SkyNENCh1)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • Scene mirror view angle in non-negative degrees, measured clockwise from nadir
    looking into interferometer window(sceneMirrorAngle)
  • time_in_seconds_since_volume_start(time)
  • Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
more
sgpaerich1C1.b1:
  • AERI instrument unit serial number(AERIunitNumber)
  • time_in_seconds_since_volume_start(time)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Calibrated scene type identification(calibratedSceneID)
  • Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
  • AERI instrument data channel number(channelNumber)
  • Relative humidity measured near Blackbodies. Use with air temperature near BBs
    only.(atmosphericRelativeHumidity)
  • Version number of Operational Software(systemReleaseNumber)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Scene mirror view angle in non-negative degrees, measured clockwise from nadir
    looking into interferometer window(sceneMirrorAngle)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
    Valid Range -3:Neither Open Nor Closed(hatchOpen)
  • Wave number in reciprocal centimeters(wnum2)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Character string containing instrument name(instrumentUnitNumber)
  • Observation latitude(Latitude)
  • lon(lon)
  • Duration of scene view(sceneViewDuration)
  • Observation date(dateYYMMDD)
  • North Latitude(lat)
  • Time offset from base_time(time_offset)
  • Maximum departure from ideal of the mirror position over the course of all
    contributing views. Typically two hot, two ambient, and one scene view are
    examine(sceneMirPosEncoderMaxDrift)
  • wavenumbers for mean radiance spectra(wnum)
  • Observation altitude(Altitude)
  • base time in epoch(base_time)
  • -180.0 - +180.0(alt)
  • Observation longitude(Longitude)
  • Mean of radiance spectra ensemble(mean_rad)
  • Difference between the sky view\'s radiance variance and the hot black body
    view\'s variance(standard_dev_mean_rad)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Julian Day including day and fraction of day(JulianDay)
  • Time at center of AERI sky observation period(timeHHMMSS)
more
sgpaerich2C1.b1:
  • North Latitude(lat)
  • Wave number in reciprocal centimeters(wnum2)
  • time_in_seconds_since_volume_start(time)
  • lon(lon)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Version number of Operational Software(systemReleaseNumber)
  • Duration of scene view(sceneViewDuration)
  • Observation altitude(Altitude)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Observation latitude(Latitude)
  • Time at center of AERI sky observation period(timeHHMMSS)
  • Observation date(dateYYMMDD)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
  • -180.0 - +180.0(alt)
  • Character string containing instrument name(instrumentUnitNumber)
  • Difference between the sky view\'s radiance variance and the hot black body
    view\'s variance(standard_dev_mean_rad)
  • Maximum departure from ideal of the mirror position over the course of all
    contributing views. Typically two hot, two ambient, and one scene view are
    examine(sceneMirPosEncoderMaxDrift)
  • Julian Day including day and fraction of day(JulianDay)
  • AERI instrument data channel number(channelNumber)
  • Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
    Valid Range -3:Neither Open Nor Closed(hatchOpen)
  • Calibrated scene type identification(calibratedSceneID)
  • AERI instrument unit serial number(AERIunitNumber)
  • Mean of radiance spectra ensemble(mean_rad)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
  • Relative humidity measured near Blackbodies. Use with air temperature near BBs
    only.(atmosphericRelativeHumidity)
  • wavenumbers for mean radiance spectra(wnum)
  • Time offset from base_time(time_offset)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Scene mirror view angle in non-negative degrees, measured clockwise from nadir
    looking into interferometer window(sceneMirrorAngle)
  • base time in epoch(base_time)
  • Observation longitude(Longitude)
more
sgpaeriengineerC1.b1:
  • Rain sensor analog output(rainSensorIntensity)
  • Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
  • Sky View Imaginary Radiance (2295_2300 cm^-1)(skyViewImaginaryRadiance2295_2300)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm^-1(SWskyNEN)
  • Blackbody controller unit 2 power supply temperature(BBcontroller2temp)
  • Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • Front End Fan Airflow Heated Temperature(frontEndFanAirHeatedTemp)
  • Hot blackbody temperature - apex(HBBapexTemp)
  • Ambient blackbody temperature(ABBbottomTemp)
  • Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
  • Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
  • Hot blackbody temperature - rim bottom(HBBbottomTemp)
  • Blackbody cavity geometry factor(BBcavityFactor)
  • ABB view radiance standard deviation (2510_2515 cm^-1)(ABBviewStdDevRadiance2510_2515)
  • Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
  • Scene mirror view angle in non-negative degrees, measured clockwise from nadir
    looking into interferometer window(sceneMirrorAngle)
  • Observation altitude(Altitude)
  • Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
  • Maximum departure from ideal of the mirror position over the course of all
    contributing views. Typically two hot, two ambient, and one scene view are
    examine(sceneMirPosEncoderMaxDrift)
  • Original Laser Wavenumber(originalLaserWavenumber)
  • Sky view imaginary radiance (2282_2287 cm^-1)(skyViewImaginaryRadiance2282_2287)
  • Logical flag indicating whether any data is available at current time
    (true/false)(dataAvailable)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Instrument scene mirror position identifier(sceneMirrorPosition)
  • Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
  • Decimal representation of percentage weighting of ambient blackbody apex
    temperature(ABBapexTempWeight)
  • time_in_seconds_since_volume_start(time)
  • Decimal representation of percentage weighting of hot blackbody apex temperature(HBBapexTempWeight)
  • AERI instrument unit serial number(AERIunitNumber)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Calibrated scene type identification(calibratedSceneID)
  • Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
  • Interferometer Enclosure Relative Humidity(interferometerEnclosureRelativeHumidity)
  • Version number of Operational Software(systemReleaseNumber)
  • Corrective offset for final hot blackbody average temperature(HBBtempOffset)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Observation longitude(Longitude)
  • Hot blackbody temperature - rim top(HBBtopTemp)
  • Size of buffer holding initial spectrum(originalInterferogramSize)
  • Blackbody controller unit 1 power supply temperature(BBcontroller1temp)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
  • Scene mirror position encoder value(sceneMirPosEncoder)
  • lon(lon)
  • HBB view radiance standard deviation (700_705 cm^-1)(HBBviewStdDevRadiance700_705)
  • Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
  • Detector Temperature(detectorTemp)
  • Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
  • Two minute noise estimate factor(twoMinuteNoiseEstimateFactor)
  • Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
  • Ambient blackbody temperature - rim top(ABBtopTemp)
  • base time in epoch(base_time)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Time at center of AERI sky observation period(timeHHMMSS)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the scene view(HBBtempDrift)
  • Duration of scene view(sceneViewDuration)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • HBB view radiance standard deviation (2510_2515 cm^-1)(HBBviewStdDevRadiance2510_2515)
  • Interferometer Window Temperature(interferometerWindowTemp)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Maximum temperature difference between HBB thermistors(HBBmaxTempDiff)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
  • Resistive temperature of 2500 ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
  • Ingest computer temperature(computerTemp)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • Relative humidity measured near Blackbodies. Use with air temperature near BBs
    only.(atmosphericRelativeHumidity)
  • Stirling cycle cooler expander temperature(coolerExpanderTemp)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
    Valid Range -3:Neither Open Nor Closed(hatchOpen)
  • Julian Day including day and fraction of day(JulianDay)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Optics Compartment Relative Humidity(opticsCompartmentRelativeHumidity)
  • ABB View Radiance Std Deviation (2282_2287 cm^-1)(ABBviewStdDevRadiance2282_2287)
  • FFOV half angle(FFOVhalfAngle)
  • Ambient blackbody temperature - apex(ABBapexTemp)
  • Sky View Imaginary Radiance (675_680 cm^-1)(skyViewImaginaryRadiance675_680)
  • HBB view radiance standard deviation (675_680 cm^-1)(HBBviewStdDevRadiance675_680)
  • Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
  • Observation latitude(Latitude)
  • ABB View Radiance Std Deviation (2295_2300 cm^-1)(ABBviewStdDevRadiance2295_2300)
  • Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • ABB view radiance standard deviation (700_705 cm^-1)(ABBviewStdDevRadiance700_705)
  • Front End Fan Airflow Unheated Temperature(frontEndFanAirUnheatedTemp)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Limit in Hot-blackbody Temperature Drift(HBBtempDriftLimit)
  • AERI instrument data channel number(channelNumber)
  • -180.0 - +180.0(alt)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • North Latitude(lat)
  • Longwave scene NEN limit(LWskyNENlimit)
  • Character string containing instrument name(instrumentUnitNumber)
  • Signal conditioning electronics inside air temperature(SCEtemp)
  • Scene mirror motor driver heat sink temperature(motorDriverTemp)
  • ABB View Radiance Std Deviation (675_680 cm^-1)(ABBviewStdDevRadiance675_680)
  • Maximum temperature difference between ABB thermistors(ABBmaxTempDiff)
  • AERI interferometer temperature at second port(interferometerSecondPortTemp)
  • Number of terms in FFOV corrections(numberOfTerms)
  • Scene mirror position count; number of viewers in a sequence(sceneMirPosCount)
  • Time offset from base_time(time_offset)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Sky View Imaginary Radiance (700_705 cm^-1)(skyViewImaginaryRadiance700_705)
  • Front end fan air temperature difference(frontEndFanAirTempDiff)
  • Ambient air temperature near the interferometer(airNearInterferometerTemp)
  • Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
  • HBB View Radiance Std Deviation (2295_2300 cm^-1)(HBBviewStdDevRadiance2295_2300)
  • Ambient air temperature near blackbodies(airNearBBsTemp)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Sun sensor intensity(sunSensorIntensity)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Stirling cycle cooler current(coolerCurrent)
  • Shortwave scene NEN limit(SWskyNENlimit)
  • Weight factor for bottom used in calculating ambient blackbody temperature
    average(ABBbottomTempWeight)
  • Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
  • Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • HBB view radiance standard deviation (2282_2287 cm^-1)(HBBviewStdDevRadiance2282_2287)
  • Observation date(dateYYMMDD)
  • Electronics rack ambient temperature(rackAmbientTemp)
  • Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
  • Spare temperature sensor (location TBD)(spareTemp)
  • Scene mirror motor case temperature(mirrorMotorTemp)
  • Expanded Spectral Buffer Size(expandedInterferogramSize)
  • Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • HBB view radiance standard deviation (985_990 cm^-1)(HBBviewStdDevRadiance985_990)
  • Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
more

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