摘要
简要介绍了国内外山洪临界雨量确定的典型方法,如欧美地区FFG法,日本线性相关法,我国台湾地区的降雨驱动指标法,以及大陆地区的实测雨量统计法、水位/流量反推法、暴雨临界曲线法和比拟法等;探索了分布式方法确定临界雨量的方法,重点探讨了以降雨强度、时段雨量、有效累积雨量为指标的山洪临界雨量确定方法;分析了分布式水文法确定临界雨量的优缺点,提出了山洪临界雨量确定方法的建议。
This paper initiated with a review of commonly used methods for estimating rainfall indicator in flash flood forecasting, such as the Flash Flood Guidance （FFG） Method in the United States and Europe, the Linear Relation Method in Japan, and the methods of the Rainfall Driven Factor, the Measured Rainfall Statistics, the Stage/Discharge Inversion, the Rainfall Critical Line, as well as Analogue in China. A detailed description of a distributed hydrologic method was followed for the purpose of finding a fundamental, universal and practical outputs to support flash flood managements in China, with an emphasis on analysis on rain intensity, rainfall within specific duration, effective accumulated rainfall, and rain triggering index. Finally, the merits and demerits of the distributed hydrologic method were discussed, and some suggestions were provided for flash flood critical, rainfall computation in China.
出处
《中国防汛抗旱》
2013年第6期23-28,共6页
China Flood & Drought Management
基金
国家自然科学基金创新群体基金(51021006)
"十二五"科技支撑计划项目"地质灾害监测预警与风险评估技术方法研究"(2012BAK10B03)
关键词
临界雨量
确定方法
分布式方法
Flash flood
rainfall indicator
distributed hydrologic method
