Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer
[1] This study compares the atmospheric total precipitable water (PWV) obtained by Atmospheric Infrared Sounder (AIRS) with radiosondes and the European Centre for Medium-range Weather Forecasts (ECMWF) operational analysis products during December 2003 and January 2004. We find that PWV from AIRS L...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.670.3631 2023-05-15T13:46:40+02:00 Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer E. T. Olsen S. L. Granger S. -y. Lee L. Chen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.3631 http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.3631 http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.pdf text ftciteseerx 2016-01-08T17:19:55Z [1] This study compares the atmospheric total precipitable water (PWV) obtained by Atmospheric Infrared Sounder (AIRS) with radiosondes and the European Centre for Medium-range Weather Forecasts (ECMWF) operational analysis products during December 2003 and January 2004. We find that PWV from AIRS Level 3 (daily gridded) data is about 9 % drier while ECMWF is 14 % moister than sondes at the two grid points closest to the Dome C radiosonde site on the Antarctic Plateau at 3233 m elevation. The largest ECMWF moist biases occur on warmer days at Dome C. When AIRS Level 3 data are compared with ECMWF over the entire Antarctic continent, AIRS and ECMWF PWV have similar variability (correlation coefficients are predominantly 0.8 or higher), but with AIRS drier over most of the Antarctic by a consistent offset of about 0.1–0.2 mm. Because of this constant difference, the largest percentage differences are found over the highland areas of about 2500 meters and above, where absolute water vapor amounts are smallest. Text Antarc* Antarctic Unknown Antarctic The Antarctic |
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[1] This study compares the atmospheric total precipitable water (PWV) obtained by Atmospheric Infrared Sounder (AIRS) with radiosondes and the European Centre for Medium-range Weather Forecasts (ECMWF) operational analysis products during December 2003 and January 2004. We find that PWV from AIRS Level 3 (daily gridded) data is about 9 % drier while ECMWF is 14 % moister than sondes at the two grid points closest to the Dome C radiosonde site on the Antarctic Plateau at 3233 m elevation. The largest ECMWF moist biases occur on warmer days at Dome C. When AIRS Level 3 data are compared with ECMWF over the entire Antarctic continent, AIRS and ECMWF PWV have similar variability (correlation coefficients are predominantly 0.8 or higher), but with AIRS drier over most of the Antarctic by a consistent offset of about 0.1–0.2 mm. Because of this constant difference, the largest percentage differences are found over the highland areas of about 2500 meters and above, where absolute water vapor amounts are smallest. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
E. T. Olsen S. L. Granger S. -y. Lee L. Chen |
spellingShingle |
E. T. Olsen S. L. Granger S. -y. Lee L. Chen Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
author_facet |
E. T. Olsen S. L. Granger S. -y. Lee L. Chen |
author_sort |
E. T. Olsen |
title |
Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
title_short |
Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
title_full |
Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
title_fullStr |
Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
title_full_unstemmed |
Atmospheric total precipitable water from AIRS and ECMWF during Antarctic summer |
title_sort |
atmospheric total precipitable water from airs and ecmwf during antarctic summer |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.3631 http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.3631 http://polarmet.osu.edu/PMG_publications/ye_fetzer_grl_2007.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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1766245052061843456 |