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Evaluation of AIRS, MODIS, and HIRS 11 micron brightness temperature difference changes from 2002 through 2006

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dc.contributor.author Broberg, Steven E.
dc.contributor.author Aumann, Hartmut H.
dc.contributor.author Gregorich, David T.
dc.contributor.author Xiong, X.
dc.date.accessioned 2006-10-25T21:59:04Z
dc.date.available 2006-10-25T21:59:04Z
dc.date.issued 2006-08-13
dc.identifier.citation SPIE Earth Observing Systems XI, San Diego, August 14, 2006. en
dc.identifier.clearanceno 06-2063
dc.identifier.uri http://hdl.handle.net/2014/39856
dc.description.abstract In an effort to validate the accuracy and stability of AIRS data at low scene temperatures (200-250 K range), we evaluated brightness temperatures at 11 microns with Aqua MODIS band 31 and HIRS/3 channel 8 for Antarctic granules between September 2002 and May 2006. We found excellent agreement with MODIS (at the 0.2 K level) over the full emperature range in data from early in the Aqua mission. However, in more recent data, starting in April 2005, we found a scene temperature dependence in MODIS-AIRS brightness temperature differences, with a discrepancy of 1- 1.5 K at 200 K. The comparison between AIRS and HIRS/3 (channel 8) on NOAA 16 for the same time period yields excellent agreement. The cause and time dependence of the disagreement with MODIS is under evaluation, but the change was coincident with a change in the MODIS production software from collection 4 to 5. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 280427 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006. en
dc.subject Atmospheric Infrared Sounder (AIRS) en
dc.subject MODIS en
dc.subject HIRS en
dc.subject spectrometers en
dc.subject radiometers en
dc.subject validation en
dc.title Evaluation of AIRS, MODIS, and HIRS 11 micron brightness temperature difference changes from 2002 through 2006 en
dc.type Preprint en


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