Detectable rain range of spaceborne Ka-band radar estimated from TRMM precipitation radar data

被引：1
|
作者：
Adhikari, NB [1 ]
Nakamura, K [1 ]
机构：
[1] Nagoya Univ, Hydrospher Atmospher Res Ctr, Nagoya, Aichi 4648601, Japan
来源：
JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY | 2002年 / 19卷 / 11期
关键词：
D O I：
10.1175/1520-0426(2002)019<1878:DRROSK>2.0.CO;2
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
A 14/ 35- GHz dual- wavelength radar is expected to be one of the next- generation spaceborne rain radars. The effect of rain attenuation at higher- frequency (35 GHz) radar with different minimum sensitivities was investigated through simulation. Based on the data taken by a single- wavelength (13.8 GHz) precipitation radar (PR) on board the Tropical Rainfall Measuring Mission (TRMM) satellite, the frequency distribution of the received power of the shorter- wavelength radar was first calculated through simulation. If the receiver minimum noise threshold is equivalent to about 10 dBZ, the missing fraction of near- surface rain due to attenuation degrading the signal below the noise threshold is about 15% over land and 3% over ocean compared to the PR.
引用
收藏
页码：1878 / 1885
页数：8
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