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湖南短历时暴雨雨型分析

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采用湖南14个地市州所在地国家气象站1980—2013年逐分钟降雨资料,分别利用模糊识别法、芝加哥法、Pil-grim&cordery法及同频率法对各地短历时60 min、90 min、120 min、150 min、180 min以5 min为单位时段的暴雨雨型进行了识别和推求,结果表明:推求的各地暴雨雨型基本以峰值在前部的单峰型为主;芝加哥、Pilgrim&cordery计算的峰值、强度相当,推求的各历时暴雨雨型基本一致,也更接近实际,同频率法相对来说效果较差些.
The analysis of the short-duration rainstorm pattern over Hunan Province
Based on fuzzy recognition method, Chicago method, Pilgrim&Cordery method and same frequency method, the minute by min-ute rainfall data at 14 National Meteorological Stations in Hunan Province from 1980 to 2013 are used to identify and investigate the rainstorm pattern within short durations of 60, 90, 120, 150, and 180 min. The results show that nearly all the rainstorm patterns in Hunan Province present a single-peak pattern, in which the rainfall peak is located in the front of rainfall period. Although the method and principle of Chica-go method and Pilgrim&Cordery method are different, the calculated rainfall peak intensities are similar. Most of the rainstorm patterns for all duration rainfalls investigated by both methods are consistent with each other, and closer to reality than by other methods. The same fre-quency method is less effective than the Chicago method and Pilgrim&Cordery method.

rainstorm patternduration of rainrain peakHunan province

王光明、廖玉芳、曾向红、吴浩、王文闻

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湖南省气候中心,长沙410007

湖南省怀化市气象局,怀化 418000

湖南省靖州县气象局,靖州 418400

暴雨雨型 降雨历时 雨峰 湖南

2017

暴雨灾害
中国气象局武汉暴雨研究所

暴雨灾害

CSTPCD
影响因子:1.533
ISSN:1004-9045
年,卷(期):2017.36(1)
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