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Title: Characterization of AIRS temperature and water vapor measurement capability using correlative observations
Authors: Fetzer, Eric J.
Eldering, Annmarie
Lee, Sung-Yung
Keywords: meteorology
remote sounding
water vapor
Issue Date: Jan-2005
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005
Citation: American Meteorological Society Annual Meeting, San Diego, California, January, 2005
Abstract: In this presentation we address several fundamental issues in the measurement of temperature and water vapor by AIRS: accuracy, precision, vertical resolution and biases as a function of cloud amount. We use two correlative data sources. First we compare AIRS total water vapor with that from the Advanced microwave Sounding Radiometer for EOS (AMSR-E) instrument, also onboard the Aqua spacecraft. AMSRE uses a mature methodology with a heritage including the operational Special Sensor Microwave Imager (SSM/I) instruments. AIRS and AMSR-E observations are collocated and simultaneous, providing a very large data set for comparison: about 200,000 over-ocean matches daily. We show small cloud-dependent biases between AIRS and AMSR-E total water vapor for several oceanic regions. Our second correlative data source is several hundred dedicated radiosondes launched during AIRS overpasses
Appears in Collections:JPL TRS 1992+

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