Satellite estimation of precipitation over land
نویسندگان
چکیده
GRANT W. PETTY Earth and Atmospheric Sciences Department, 1397 CTVL Bldg, Purdue University, West Lafayette, Indiana 47907-1397, USA W1TOLD F. KRAJEWSKI Department of Civil and Environmental Engineering, The University of Iowa, Iowa City, Iowa 52242-1585, USA Abstract The availability of satellite-derived rainfall products to hydrologists and other natural scientists has increased enormously in the last five years. The purpose of this paper is to review concisely the current state-of-the-art of satellite precipitation estimation over land and the availability of standard products, and to highlight some of the strengths and limitations of satellite-derived rainfall data for hydrological applications. Methods based on infrared, visible and passive microwave radiation measurements are discussed. Results of several international activities aimed at evaluating the performance of the estimation algorithms are briefly summarized.
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