| Subject: | TWP/AERI/C1 - Obstructed scene mirror mechanism (mouse) |
| DataStreams: | twpaerisummaryC1.b1, twpaerich2C1.b1, twpaeriengineerC1.b1, twpaerich1C1.b1
|
| Description: | A physical obstruction caused the scene mirror to not point at the hot blackbody HBB
correctly. This lead to inaccurate sky views for the scan sequences calibrated with the
incorrect HBB views. The problem was intermittent, it often got worse as the UTC day
progressed, then reset at 0Z
Contaminated HBB scenes can potentially be identified by looking at the responsivity: a
sudden drop in responsivity is usually indicative of incorrect HBB views. HBB radiance and
mirror position could also be used from the raw data. |
| Suggestions: | Sky views adjacent to contaminated HBB scenes should be considered incorrect data. |
| Measurements: | twpaerisummaryC1.b1: - SkyUniformityCh1
- SWskyNENacceptable
- SkyUniformityCh2
- LW_HBB_NEN
- ResponsivitySpectralAveragesCh1
- ResponsivitySpectralAveragesCh2
- elevatedLayerRadiance2282_2287
- skyViewStdDevRadiance985_990
- SkyRadianceSpectralAveragesCh2
- SkyRadianceSpectralAveragesCh1
- SW_HBB_NEN
- skyViewStdDevRadiance2510_2515
- surfaceLayerRadiance675_680
- surfaceLayerAirTemp675_680
- SkyBrightnessTempSpectralAveragesCh1
- shortwaveWindowRadiance2510_2515
- shortwaveWindowAirTemp2510_2515
- skyViewStdDevRadiance675_680
- longwaveWindowRadiance985_990
- elevatedLayerAirTemp700_705
- skyViewStdDevRadiance2295_2300
- SkyBrightnessTempSpectralAveragesCh2
- LWskyNEN
- skyViewStdDevRadiance700_705
- surfaceLayerRadiance2295_2300
- longwaveWindowAirTemp985_990
- HBB2minNENestimateNo2Ch2
- skyViewStdDevRadiance2282_2287
- HBB2minNENestimateNo2Ch1
- SWskyNEN
- LWresponsivity
- elevatedLayerRadiance700_705
- LWskyNENacceptable
- elevatedLayerAirTemp2282_2287
- SkyNENCh1
- SkyNENCh2
- HBB2minNENestimateNo1Ch2
- HBB2minNENestimateNo1Ch1
- surfaceLayerAirTemp2295_2300
- SWresponsivity
more
twpaerich1C1.b1: more
twpaeriengineerC1.b1: - SWskyNEN
- shortwaveWindowRadiance2510_2515
- skyViewStdDevRadiance700_705
- skyViewStdDevRadiance675_680
- surfaceLayerRadiance675_680
- longwaveWindowAirTemp985_990
- elevatedLayerAirTemp700_705
- skyViewImaginaryRadiance2295_2300
- SWresponsivity
- skyViewStdDevRadiance985_990
- HBBviewStdDevRadiance2295_2300
- skyViewImaginaryRadiance2282_2287
- HBBviewStdDevRadiance2510_2515
- SWskyNENacceptable
- HBBviewStdDevRadiance700_705
- longwaveWindowRadiance985_990
- LW_HBB_NEN
- surfaceLayerAirTemp2295_2300
- SW_HBB_NEN
- HBBviewStdDevRadiance2282_2287
- skyViewImaginaryRadiance700_705
- skyViewImaginaryRadiance675_680
- skyViewImaginaryRadiance2510_2515
- skyViewStdDevRadiance2295_2300
- HBBviewStdDevRadiance985_990
- skyViewImaginaryRadiance985_990
- elevatedLayerRadiance700_705
- shortwaveWindowAirTemp2510_2515
- HBBviewStdDevRadiance675_680
- LWresponsivity
- skyViewStdDevRadiance2510_2515
- surfaceLayerAirTemp675_680
- LWskyNEN
- SWskyNENlimit
- surfaceLayerRadiance2295_2300
- elevatedLayerAirTemp2282_2287
- elevatedLayerRadiance2282_2287
- skyViewStdDevRadiance2282_2287
more
twpaerich2C1.b1: more
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