| Subject: | SGP/AERI/B4 - Intermittent Failure of LW detector |
| DataStreams: | sgpaeriB4.00, sgpaerich1B4.a1, sgpaeriengineerB4.a1, sgpaerisummaryB4.a1
|
| Description: | The amplifier gain for the long wave (LW) detector intermittently failed. The result was a
decrease in LW responsivity by a factor of 2 whenever this occurred. The loss of
responsivity will increase the noise of the LW data. The user will need to determine whether
this increase in noise is significant enough to affect the data quality for their
application. The amplifier rapidly changed from failed to working. When the amplifier was working
the data are all green (good). |
| Measurements: | sgpaerisummaryB4.a1: - Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
- AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
- Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
- Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
- AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
- Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
- AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
- AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
- Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
- AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
- Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
- AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
- AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
- Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
- AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
- AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
- AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
- AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
- AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
- The noise equivalent radiance observed in the longwave channel during a sky view
at 1000 cm-1(LWskyNEN) - AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
- Characteristic value representing overall longwave channel responsivity(LWresponsivity)
- Longwave elevated air brightness temperature from radiance average (700_705
cm-1)(elevatedLayerAirTemp700_705) - Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
- Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
sgpaerich1B4.a1: - Mean of radiance spectra ensemble(mean_rad)
- Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
sgpaeriB4.00: - null(Raw data stream - documentation not supported)
sgpaeriengineerB4.a1: - Ambient blackbody temperature(ABBbottomTemp)
- Characteristic value representing overall longwave channel responsivity(LWresponsivity)
- Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
- Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
- The noise equivalent radiance observed in the longwave channel during a sky view
at 1000 cm-1(LWskyNEN) - Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
- Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
- Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
- Radiance standard deviation during hot blackbody view averaged over (985_990
cm-1)(HBBviewStdDevRadiance985_990) - Radiance standard deviation during ambient blackbody view averaged over (675_680
cm-1)(ABBviewStdDevRadiance675_680) - Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
- Radiance standard deviation during ambient blackbody view averaged over (985_990
cm-1)(ABBviewStdDevRadiance985_990) - Radiance standard deviation during hot blackbody view averaged over (675_680
cm-1)(HBBviewStdDevRadiance675_680) - Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
- Radiance standard deviation during hot blackbody view averaged over (700_705
cm-1)(HBBviewStdDevRadiance700_705) - Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
- Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
- Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
- Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
- Longwave elevated air brightness temperature from radiance average (700_705
cm-1)(elevatedLayerAirTemp700_705) - Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
- Radiance standard deviation during ambient blackbody view averaged over (700_705
cm-1)(ABBviewStdDevRadiance700_705)
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