NSA/AERI/C1 - Blower Motor Failure -Channel 1 data effect

The blower motor failed on February 9, estimated time 23:00 GMT. The problem was repaired 
on February 10, 23:00 GMT. The blower motor serves two functions. It maintains the 
instrument window enclosure at the outside
temperature and blows ice crystals from the enclosure. Failure of the motor
caused the enclosure temperature to increase by approximately 12K (from 255
to 267K). Previous experience in comparing arctic instruments with the blower on and off 
have shown that if ice crystals enter the enclosure, there is a slight increase in the 3-5 
um (ch 2) spectral intensity. It is unlikely that Ch 1 is affected. However, we can not 
be certain that there is no problem with the data. Hence, this DQR should be considered a 
warning that Channel 1 data may be affected.

• (Raw data stream - documentation not supported)

• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_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)
• Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
• Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
• Sky View Imaginary Radiance (700_705 cm^-1)(skyViewImaginaryRadiance700_705)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Sky View Imaginary Radiance (675_680 cm^-1)(skyViewImaginaryRadiance675_680)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm^-1(SWskyNEN)
• Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
• Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)

• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• AERI LW scene NESR spectral averages (ch1)(SkyNENCh1)
• Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• 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)
• Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
• Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
• Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• AERI LW scene brightness temp spectral averages (ch1)(SkyBrightnessTempSpectralAveragesCh1)

• Average of brightness temperatures calculated from AERI radiances within
  spectral window for channel 1: [1142.20,1147.03](mean_AERI_BT_channel_1)

• (Raw data stream - documentation not supported)