Paper Info
Title
Tropical SNO comparisons of AIRS and CrIS calibration for windows.
Abstract
AIRS on EOS-Aqua and CrIS on Suomi NPP are two hyperspectral infrared sounders with similar capabilities and orbits, so there is a great opportunity to compare their absolute calibration while they are both in orbit. This insures that long-term climate record can be created by concatenating the two instrument records. There are significant differences in instrument architecture which may lead to subtle differences and complicate attempts to combine the records. We use Tropical Simultaneous Nadir Observations (TSNOs), cases where both instruments are looking nearly at the same place at the same time, to explore the differences. Due to the presence of cold clouds and clear hot desert surface, the data cover a brightness temperature range from 190 K to 340 K. We concentrate on the differences between the mean of the two instruments using atmospheric window channels as function of brightness temperature in 20-K wide bins. With the currently available AIRS and CrIS official calibrated data, radiometric differences as large as 0.3 K are seen at the extreme temperatures. These differences may be reduced in future releases of the AIRS and CrIS calibration.
Year
DOI
Venue
2016
10.1117/12.2236672
Proceedings of SPIE
Keywords
Field
DocType
AIRS,CrIS,hyperspectral,infrared sounder
Nadir,Meteorology,Atmospheric Infrared Sounder,Climate model,Brightness temperature,Atmospheric models,Remote sensing,Orbital mechanics,Calibration,Physics,Infrared window
Conference
Volume
ISSN
Citations 
9972
0277-786X
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Evan M. Manning113.76
Hartmut H. Aumann2716.00