| Subject: | SGP/AERI/B4 - Intermittent Failure of LW detector |
| DataStreams: | sgpaerisummaryB4.a1, sgpaerich1B4.a1, sgpaeriB4.00, sgpaeriengineerB4.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). |
| Suggestions: | null |
| Measurements: | sgpaerisummaryB4.a1: - AERI LW responsivity spectral averages (ch1)(ResponsivitySpectralAveragesCh1)
- Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
- AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
- AERI LW scene NESR spectral averages (ch1)(SkyNENCh1)
- Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
- Longwave elevated air brightness temperature from radiance average (700_705
cm-1)(elevatedLayerAirTemp700_705) - Characteristic value representing overall longwave channel responsivity(LWresponsivity)
- Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
- Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
- AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
- Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
- AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
- The noise equivalent radiance observed in the longwave channel during a sky view
at 1000 cm-1(LWskyNEN) - AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
- Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
- AERI LW Scene radiance spectral averages (ch1)(SkyRadianceSpectraAveragesCh1)
- AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
- Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
- AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
- AERI LW scene brightness temp spectral averages (ch1)(SkyBrightnessTempSpectralAveragesCh1)
- AERI LW HBB 2min NESR estimate #2 derived from sequential HBB views (ch1)(HBB2minNENestimateNo2Ch1)
- Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
- Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
- AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
- AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
more
sgpaeriB4.00: - (Raw data stream - documentation not supported)
more
sgpaerich1B4.a1: - Difference between the sky view\'s radiance variance and the hot black body
view\'s variance(standard_dev_mean_rad) - Mean of radiance spectra ensemble(mean_rad)
more
sgpaeriengineerB4.a1: - Longwave elevated air brightness temperature from radiance average (700_705
cm-1)(elevatedLayerAirTemp700_705) - Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
- Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
- Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
- Sky View Imaginary Radiance (675_680 cm^-1)(skyViewImaginaryRadiance675_680)
- Sky View Imaginary Radiance (700_705 cm^-1)(skyViewImaginaryRadiance700_705)
- Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
- Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
- HBB view radiance standard deviation (675_680 cm^-1)(HBBviewStdDevRadiance675_680)
- Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
- Radiance standard deviation during ambient blackbody view averaged over (985_990
cm-1)(ABBviewStdDevRadiance985_990) - HBB view radiance standard deviation (700_705 cm^-1)(HBBviewStdDevRadiance700_705)
- ABB View Radiance Std Deviation (675_680 cm^-1)(ABBviewStdDevRadiance675_680)
- Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
- ABB view radiance standard deviation (700_705 cm^-1)(ABBviewStdDevRadiance700_705)
- HBB view radiance standard deviation (985_990 cm^-1)(HBBviewStdDevRadiance985_990)
- Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
- Ambient blackbody temperature(ABBbottomTemp)
- Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
- The noise equivalent radiance observed in the longwave channel during a sky view
at 1000 cm-1(LWskyNEN) - Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
- Characteristic value representing overall longwave channel responsivity(LWresponsivity)
more
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