Data Quality Reports for Session: 149470 User: jian1yx Completed: 04/17/2013


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100218.2SGP/AERI/C1 - Fault within the channel 2 (InSb) detectorsgpaerich2C1.b1, sgpaeriprof3feltzC1.c1, sgpaeriprof3feltzC1.s1, sgpaerich2nf1turnC1.c1
D110609.1SGP/AERI/C1 - Missing datasgpaerisummaryC1.b1, sgpaerich2C1.b1, sgpaeriengineerC1.b1, sgpaerich1C1.b1


DQRID : D100218.2
Start DateStart TimeEnd DateEnd Time
09/10/2009000003/02/20102359
Subject:
SGP/AERI/C1 - Fault within the channel 2 (InSb) detector
DataStreams:sgpaerich2C1.b1, sgpaeriprof3feltzC1.c1, sgpaeriprof3feltzC1.s1, sgpaerich2nf1turnC1.c1
Description:
On 10 Sep 2009, an "event" happened at the SGP site which impacted the AERI instrument.  
This event has been documented in DQPR 2258.  This event had a tremendous impact on the 
radiance, and in particular the noise level, in the channel 2 data (which uses the InSb 
detector).  After much effort by the site operators and mentors, it appeared that the system 
was "fixed" on 5 October 2009.  However, there were some weird irregularities in the 
dataset that were bothersome, and necessitated a more complete analysis.

We (the instrument mentor team) have concluded that the fault suffered on Sept 10 affected 
the grounding of the InSb detector.  The symptoms included a 'wandering' of the phase of 
the interferogram, which results in errors in calibration, as well as increased noise in 
the data.  We have attempted to correct the data for a few days by hand, as phase errors 
typically can be accounted for; however, in these cases we were unable to do this 
satisfactorily with significant amounts of atmospheric signal remaining in the imaginary 
spectrum and low-frequency biases remaining in the real spectrum.  [If the data are properly 
calibrated, then the real spectrum is what is used for science and has all of the 
atmospheric signal, while the imaginary spectrum should be all random noise.]

Therefore, we have concluded that all radiance data from the channel 2 detector of this 
system, including all downstream data products that make use of these data, should be 
classified as INCORRECT / BAD.  The channel 1 data (which is from a different detector) 
appears to be fine and properly calibrated.  The system will be replaced with the spare AERI.
Measurements:sgpaerich2nf1turnC1.c1:
  • standard_dev_mean_rad
  • Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)

sgpaerich2C1.b1:
  • standard_dev_mean_rad
  • Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)

sgpaeriprof3feltzC1.s1:
  • Air temperature(temperature)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • totalPrecipitalWater
  • Water vapor mixing ratio, retrived profile, constant pressure levels(CPL_waterVaporMixingRatio)
  • Temperature, ambient, retrieved profile, constant pressure levels(CPL_ambientTemp)
  • Dewpoint temperature, retrieved profile, constant pressure levels(CPL_dewpointTemp)
  • Retrieved dewpoint temperature(dewpointTemperature)

sgpaeriprof3feltzC1.c1:
  • Temperature, ambient, retrieved profile, constant pressure levels(CPL_ambientTemp)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • totalPrecipitalWater
  • Water vapor mixing ratio, retrived profile, constant pressure levels(CPL_waterVaporMixingRatio)
  • Air temperature(temperature)
  • Dewpoint temperature, retrieved profile, constant pressure levels(CPL_dewpointTemp)
  • Retrieved dewpoint temperature(dewpointTemperature)


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DQRID : D110609.1
Start DateStart TimeEnd DateEnd Time
01/05/2008174201/07/20081610
03/01/2010235303/10/20102135
01/25/2011000003/09/20110400
12/08/2009191512/17/20091529
09/11/2009155009/17/20092017
06/26/2009150307/01/20091338
12/29/2007100712/31/20071532
12/12/2007192912/15/20070003
06/27/2006235507/11/20061300
11/10/2007203111/13/20071626
07/22/2005114207/29/20051500
11/23/2007222411/26/20071356
Subject:
SGP/AERI/C1 - Missing data
DataStreams:sgpaerisummaryC1.b1, sgpaerich2C1.b1, sgpaeriengineerC1.b1, sgpaerich1C1.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpaerich2C1.b1:
  • BBsupportStructureTemp
  • sceneMirrorAngle
  • Longitude
  • lon
  • channelNumber
  • time
  • calibratedSceneID
  • outsideAirTemp
  • systemReleaseNumber
  • standard_dev_mean_rad
  • lat
  • timeHHMMSS
  • missingDataFlag
  • dateYYMMDD
  • calibrationCBBtemp
  • base_time
  • sceneViewDuration
  • time_offset
  • instrumentUnitNumber
  • atmosphericRelativeHumidity
  • wnum
  • calibrationAmbientTemp
  • alt
  • sceneMirPosEncoderMaxDrift
  • Altitude
  • hatchOpen
  • atmosphericPressure
  • JulianDay
  • AERIunitNumber
  • calibrationHBBtemp
  • Time_UTC_hours
  • Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
  • wnum2
  • Latitude

sgpaerich1C1.b1:
  • base_time
  • Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
  • timeHHMMSS
  • Longitude
  • JulianDay
  • channelNumber
  • wnum
  • atmosphericRelativeHumidity
  • hatchOpen
  • sceneMirrorAngle
  • alt
  • instrumentUnitNumber
  • systemReleaseNumber
  • Latitude
  • sceneMirPosEncoderMaxDrift
  • Altitude
  • calibrationCBBtemp
  • standard_dev_mean_rad
  • atmosphericPressure
  • sceneViewDuration
  • outsideAirTemp
  • BBsupportStructureTemp
  • missingDataFlag
  • calibrationAmbientTemp
  • AERIunitNumber
  • Time_UTC_hours
  • lon
  • time
  • calibratedSceneID
  • wnum2
  • dateYYMMDD
  • calibrationHBBtemp
  • lat
  • time_offset

sgpaeriengineerC1.b1:
  • airNearBBsTemp
  • interferometerSecondPortTemp
  • skyViewImaginaryRadiance985_990
  • SWskyNENacceptable
  • HBBviewStdDevRadiance700_705
  • detectorTemp
  • LWskyNENacceptable
  • base_time
  • ABBbottomTempWeight
  • skyViewStdDevRadiance985_990
  • calibrationCBBtemp
  • Longitude
  • HBBmaxTempDiff
  • frontEndFanAirTempDiff
  • HBBapexTemp
  • Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705)
  • rainSensorIntensity
  • spareTemp
  • LW_HBB_NEN
  • SWskyNEN
  • skyViewImaginaryRadiance2295_2300
  • systemReleaseNumber
  • lat
  • computerTemp
  • sceneMirPosEncoderDrift
  • skyViewImaginaryRadiance2510_2515
  • fixed97KohmResistor
  • timeHHMMSS
  • coolerPowerSupplyTemp
  • skyViewImaginaryRadiance675_680
  • numberOfTerms
  • skyViewStdDevRadiance675_680
  • sceneMirPosEncoderMaxDrift
  • HBBstable
  • HBBtempDrift
  • HBBtopTemp
  • skyViewStdDevRadiance700_705
  • mirrorMotorTemp
  • sceneMirPosEncoder
  • FFOVhalfAngle
  • atmosphericPressure
  • outsideAirTemp
  • sceneMirrorPosition
  • SW_HBB_NEN
  • HBBbottomTempWeight
  • sceneMirPosCount
  • BBcontroller2temp
  • calibrationAmbientTemp
  • originalInterferogramSize
  • BBcavityFactor
  • ABBviewStdDevRadiance675_680
  • ABBtempOffset
  • coolerCurrent
  • LWskyNENlimit
  • ABBviewStdDevRadiance2510_2515
  • coolerExpanderTemp
  • BBsupportStructureTemp
  • Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990)
  • time_offset
  • HBBtopTempWeight
  • HBBtempOffset
  • coolerCompressorTemp
  • outputLaserWavenumber
  • calibratedSceneID
  • ABBmaxTempDiff
  • dateYYMMDD
  • rackAmbientTemp
  • Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300)
  • expandedInterferogramSize
  • SCEtemp
  • ABBviewStdDevRadiance985_990
  • ABBviewStdDevRadiance2295_2300
  • sceneMirrorAngle
  • ABBtopTemp
  • interferometerWindowTemp
  • HBBviewStdDevRadiance2282_2287
  • time
  • atmosphericRelativeHumidity
  • Time_UTC_hours
  • HBBviewStdDevRadiance985_990
  • HBBviewStdDevRadiance675_680
  • sceneMirrorTemp
  • Altitude
  • SWskyNENlimit
  • frontEndFanAirHeatedTemp
  • Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990)
  • fixed2500ohmResistor
  • skyViewStdDevRadiance2510_2515
  • hatchOpen
  • skyViewStdDevRadiance2295_2300
  • Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705)
  • JulianDay
  • maxSampleStdDev
  • ABBtopTempWeight
  • skyViewImaginaryRadiance2282_2287
  • HBBviewStdDevRadiance2295_2300
  • ABBviewStdDevRadiance2282_2287
  • opticsCompartmentRelativeHumidity
  • sceneMirrorMotorStep
  • Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515)
  • alt
  • skyViewImaginaryRadiance700_705
  • Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300)
  • missingDataFlag
  • AERIunitNumber
  • originalLaserWavenumber
  • ABBviewStdDevRadiance700_705
  • coadditionsCount
  • Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287)
  • HBBtempDriftLimit
  • lon
  • sunSensorIntensity
  • dataAvailable
  • Latitude
  • interferometerEnclosureRelativeHumidity
  • ABBbottomTemp
  • LWskyNEN
  • Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680)
  • BBcontroller1temp
  • airNearInterferometerTemp
  • HBBapexTempWeight
  • Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680)
  • SWresponsivity
  • LWresponsivity
  • HBBbottomTemp
  • calibrationHBBtemp
  • fixed12KohmResistor
  • instrumentUnitNumber
  • frontEndFanAirUnheatedTemp
  • skyViewStdDevRadiance2282_2287
  • HBBviewStdDevRadiance2510_2515
  • Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287)
  • motorDriverTemp
  • twoMinuteNoiseEstimateFactor
  • Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515)
  • ABBapexTemp
  • ABBapexTempWeight
  • channelNumber
  • sceneViewDuration

sgpaerisummaryC1.b1:
  • skyViewStdDevRadiance2282_2287
  • Longitude
  • maxSampleStdDev
  • Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705)
  • Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515)
  • alt
  • HBBtempDrift
  • Latitude
  • base_time
  • Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 5.5-18 um(SkyBrightnessTempSpectralAveragesCh1)
  • Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyBrightnessTempSpectralAveragesCh2)
  • HBB2minNENestimateNo2Ch2
  • Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990)
  • skyViewStdDevRadiance2510_2515
  • HBB2minNENestimateNo2Ch1
  • skyViewStdDevRadiance675_680
  • calibrationHBBtemp
  • sceneMirPosEncoderDrift
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • skyViewStdDevRadiance700_705
  • SW_HBB_NEN
  • AERIunitNumber
  • LW_HBB_NEN
  • SWresponsivity
  • HBB2minNENestimateNo1Ch2
  • HBB2minNENestimateNo1Ch1
  • Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287)
  • timeHHMMSS
  • outsideAirTemp
  • sceneMirPosEncoderMaxDrift
  • Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300)
  • wnumsum13
  • calibratedSceneID
  • wnumsum14
  • wnumsum11
  • wnumsum12
  • lon
  • wnumsum10
  • dataAvailable
  • lat
  • Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300)
  • ResponsivitySpectralAveragesCh2
  • HBBstable
  • ResponsivitySpectralAveragesCh1
  • hatchOpen
  • time
  • LWresponsivity
  • Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287)
  • ABBmaxTempDiff
  • calibrationCBBtemp
  • sunSensorIntensity
  • missingDataFlag
  • Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705)
  • sceneViewDuration
  • LWskyNEN
  • channelNumber
  • LWskyNENacceptable
  • instrumentUnitNumber
  • SkyNENCh2
  • SkyNENCh1
  • SWskyNENacceptable
  • rainSensorIntensity
  • time_offset
  • systemReleaseNumber
  • Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680)
  • wnumsum9
  • wnumsum8
  • wnumsum7
  • wnumsum6
  • wnumsum5
  • wnumsum4
  • wnumsum3
  • wnumsum2
  • wnumsum1
  • Altitude
  • sceneMirrorAngle
  • atmosphericPressure
  • Time_UTC_hours
  • Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyUniformityCh2)
  • Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 5.5-18 um(SkyUniformityCh1)
  • JulianDay
  • calibrationAmbientTemp
  • Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990)
  • atmosphericRelativeHumidity
  • HBBmaxTempDiff
  • SWskyNEN
  • dateYYMMDD
  • Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680)
  • skyViewStdDevRadiance985_990
  • frontEndFanAirTempDiff
  • skyViewStdDevRadiance2295_2300
  • Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515)


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