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A model for atmospheric brightness temperatures observed by the special sensor microwave imager (SSM/I)A closed-form mathematical model for the atmospheric contribution to microwave the absorption and emission at the SSM/I frequencies is developed in order to improve quantitative interpretation of microwave imagery from the Special Sensor Microwave Imager (SSM/I). The model is intended to accurately predict upwelling and downwelling atmospheric brightness temperatures at SSM/I frequencies, as functions of eight input parameters: the zenith (nadir) angle, the integrated water vapor and vapor scale height, the integrated cloud water and cloud height, the effective surface temperature, atmospheric lapse rate, and surface pressure. It is shown that the model accurately reproduces clear-sky brightness temperatures computed by explicit integration of a large number of radiosonde soundings representing all maritime climate zones and seasons.
Document ID
19900043118
Document Type
Conference Paper
Authors
Petty, Grant W. (Washington Univ. Seattle, WA, United States)
Katsaros, Kristina B. (Washington, University Seattle, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
METEOROLOGY AND CLIMATOLOGY
Meeting Information
Conference on Satellite Meteorology and Oceanography(San Diego, CA)
Funding Number(s)
CONTRACT_GRANT: NAG9-43
Distribution Limits
Public
Copyright
Other