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...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.549.6400 2023-05-15T13:34:25+02:00 Steven E. Broberg*a Hartmut H. Aumanna David T. Gregoricha X. Xiongb The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.6400 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.6400 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf AIRS MODIS HIRS spectrometer radiometer validation text ftciteseerx 2016-01-08T11:27:13Z 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 temperature 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. AIRS and MODIS (Flight Model 1) are onboard the EOS Aqua spacecraft, launched into a 1:30 PM polar orbit on May 4, 2002. AIRS has 2378 infrared channels with high spectral resolution (1200) covering the 3.7 to 15.4 micron wavelength range, with a nominal spatial resolution of 13.5 km. MODIS has 36 relatively broad spectral bands with spatial resolution of 1 km for the LWIR bands. HIRS/3 is onboard NOAA-16 (L), launched into a 2:00 PM polar orbit on Sep. 21, 2000. Text Antarc* Antarctic Unknown Antarctic |
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AIRS MODIS HIRS spectrometer radiometer validation |
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AIRS MODIS HIRS spectrometer radiometer validation Steven E. Broberg*a Hartmut H. Aumanna David T. Gregoricha X. Xiongb |
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AIRS MODIS HIRS spectrometer radiometer validation |
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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 temperature 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. AIRS and MODIS (Flight Model 1) are onboard the EOS Aqua spacecraft, launched into a 1:30 PM polar orbit on May 4, 2002. AIRS has 2378 infrared channels with high spectral resolution (1200) covering the 3.7 to 15.4 micron wavelength range, with a nominal spatial resolution of 13.5 km. MODIS has 36 relatively broad spectral bands with spatial resolution of 1 km for the LWIR bands. HIRS/3 is onboard NOAA-16 (L), launched into a 2:00 PM polar orbit on Sep. 21, 2000. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Steven E. Broberg*a Hartmut H. Aumanna David T. Gregoricha X. Xiongb |
author_facet |
Steven E. Broberg*a Hartmut H. Aumanna David T. Gregoricha X. Xiongb |
author_sort |
Steven E. Broberg*a |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.6400 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf |
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Antarctic |
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Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
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http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.6400 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39856/1/06-2063FN.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766052623162540032 |