Development and application of topographic descriptors for conditional analysis of rainfall

被引：6

作者：

Ferranti, Emma Jayne Sakamoto ^{[1
]}

Whyatt, James Duncan ^{[1
]}

Timmis, Roger James ^{[2
]}

机构：

[1] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England

[2] Univ Lancaster, Environm Agcy, Lancaster LA1 4YQ, England

来源：

ATMOSPHERIC SCIENCE LETTERS | 2009年 / 10卷 / 03期

关键词：

GIS; rainshadow; uplands; Cumbria; climate change; NORTH-WEST ENGLAND; OROGRAPHIC RAINFALL; GAUGE OBSERVATIONS; CLIMATE-CHANGE; PRECIPITATION; UK; CIRCULATION; INTENSITY; SYSTEM; WALES;

D O I：

10.1002/asl.228

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Upland rainfall is changing but regional climate models (RCMs) are poor at simulating observed precipitation in such areas of complex topography. This paper presents a method of examining observed rainfall patterns and processes under different conditions of synoptic meteorology and local topography. Objective topographic descriptors are defined and used to distinguish the modification of rainfall by local topography from that due to different synoptic conditions and climate change. A case study examining winter rainfall in Cumbria is presented. The conditional analysis method can be used to test RCM outputs so that model parameterisation can be improved. Copyright (C) 2009 Royal Meteorological Society

引用

页码：177 / 184

页数：8

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