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Bias correction for rainrate retrievals from satellite passive microwave sensorsRainrates retrieved from past and present satellite-borne microwave sensors are affected by a fundamental remote sensing problem. Sensor fields-of-view are typically large enough to encompass substantial rainrate variability, whereas the retrieval algorithms, based on radiative transfer calculations, show a non-linear relationship between rainrate and microwave brightness temperature. Retrieved rainrates are systematically too low. A statistical model of the bias problem shows that bias correction factors depend on the probability distribution of instantaneous rainrate and on the average thickness of the rain layer.
Document ID
19920071104
Document Type
Conference Paper
Authors
Short, David A. (Communications Research Laboratory, Koganei, Japan; NASA, Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
METEOROLOGY AND CLIMATOLOGY
Meeting Information
International Symposium on Space Technology and Science(Tokyo)
Distribution Limits
Public
Copyright
Other