Rain profiling algorithm for TRMM precipitation radar data

被引:51
|
作者
Iguchi, T
Meneghini, R
Awaka, J
Kozu, T
Okamoto, K
机构
[1] Commun Res Labs, Kashima, Ibaraki 3140012, Japan
[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[3] Hokkaido Tokai Univ, Minami Ku, Sapporo, Hokkaido 005, Japan
[4] Commun Res Labs, Tokyo 1848795, Japan
关键词
D O I
10.1016/S0273-1177(99)00933-3
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
This paper describes the TRMM standard algorithm 2A25 which estimates the instantaneous vertical profile of rain from Precipitation Radar (PR) data. Major challenges in rain profiling from the TRMM PR lie in the corrections for the effects of rain attenuation and non-uniform beam filling (NUBF) and in the rejection of surface clutter. A combination of the Hitschfeld-Bordan and surface reference methods is used to correct the attenuation effect in radar returns. The NUBF effects are estimated from the spatial variations of the estimated total path integral of attenuation from the top of the rain to the surface in the vicinity of the radar beam concerned. This paper outlines the critical part of the algorithm, and shows some results of comparisons of data taken nearly simultaneously by the TRMM PR and a ground-based radar, (C) 2000 COSPAR. Published by Elsevier Science Ltd.
引用
收藏
页码:973 / 976
页数:4
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