Paper Info
Title
Hyperspectral sounder performance for cold scenes.
Abstract
We investigate the use of 200K scenes as a valuable "stress test" for the evaluation of the calibration of AIRS and CrIS. Under these conditions both instruments show artifacts much larger than the nominal stated radiometric accuracy of about 0.1-0.2 K. Except for the AIRS shortwave trend, both instruments clearly perform well at the 1 K level even for these extremely low scene temperatures. Unfortunately, changes in extremes, in this case cold extremes, are of great interest to the evaluation of climate change effects, such as changes in the height of the tropopause or the frequency of severe storms. The evaluation of the AIRS performance at extremely low scene temperatures has been key to identifying the need for updating the polarization coefficients in the L1B software Version 7. These changes are expected to eliminate a large fraction of the observed AIRS artifacts. The CrIS instrument teams is also working on refining the calibration.
Year
DOI
Venue
2017
10.1117/12.2273398
Proceedings of SPIE
Keywords
DocType
Volume
AIRS,CrIS,hyperspectral,infrared sounder,Deep Convective Clouds,cold clouds
Conference
10402
ISSN
Citations 
PageRank 
0277-786X
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Evan M. Manning113.76
Hartmut H. Aumann2716.00