中国防汛抗旱Issue(1)：70-76,87,8.
基于分布式水文模型的山洪预警临界雨量分析--以涔水南支小流域为例
Flash Flood Early-Warning Indicators Based on Distributed Hydrological Model-A Case Study in South Branch of Censhui Watershed
摘要
Abstract
Using DHM (Distribution Hydrological Model) technique with detailed sub-basin delineation, this study introduces basic concepts and methods of analyzing warning indicators for flash flood early warning. Taking south branch of Censhui watershed in Hunan Province as an example, 3 typical early warning indicators for flash flood dynamic early warning were investigated. This research il ustrates that detailed watershed characteristics can be modeled in-depth by further delineate the watershed into smal er sub-basins to simulate spatial distribution of various basin parameters. The resulted runoff and flood hydrographs show better accuracy at al 3 early warning stations. It further confirms that time of concentration of a watershed is an important factor to warning rainfal duration, and the antecedent soil moisture condition of the watershed has significant impact to the critical rainfal .关键词
小流域/分布式水文模型/山洪预警Key words
smal watershed/distribution hydrological model/flash flood early warning分类
建筑与水利引用本文复制引用
李昌志,郭良,刘昌军,孙东亚..基于分布式水文模型的山洪预警临界雨量分析--以涔水南支小流域为例[J].中国防汛抗旱,2015,(1):70-76,87,8.基金项目
全国山洪灾害防洪项目(2013-2015)；创新项目“流域水旱灾害风险管理理论与方法研究”（No.0101092013）；国家自然科学基金（No.51021006）资助。 （2013-2015）
