Using microwave links to adjust the radar rainfall field

被引：18

作者：

Cummings, R. J. ^{[1
]}

Upton, G. J. G. ^{[1
]}

Holt, A. R. ^{[1
]}

Kitchen, M. ^{[2
]}

机构：

[1] Univ Essex, Dept Math Sci, Colchester CO4 3SQ, Essex, England

[2] Met Off, Exeter EX1 3PB, Devon, England

来源：

ADVANCES IN WATER RESOURCES | 2009年 / 32卷 / 07期

基金：

英国自然环境研究理事会;

关键词：

Weather radar; Microwave link; Rainfall; DUAL-FREQUENCY; ATTENUATION; BAND; BIAS;

D O I：

10.1016/j.advwatres.2008.08.010

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The final stage in processing radar data so as to arrive at an estimated rain field typically involves a comparison of the preliminary radar-derived estimates of hourly rainfall with those observed by ground-based gauges. Often a mean field bias adjustment will then be applied using an age-weighted average of the individual gauge-radar comparisons. In this paper, a mean field bias adjustment is presented that uses the path-integrated rainfall estimates provided by microwave links together with information from gauges. It is shown to be at least as efficient as the current gauge-based procedure used by the UK Met Office to improve the accuracy of radar-based estimates of rainfall at the ground. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1003 / 1010

页数：8

共 24 条

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