人民黄河Issue(12)：50-53,4.DOI:10.3969/j.issn.1000-1379.2013.12.017
基于非一致性频率的全国旱灾损失风险分析
Risk Analysis of National Drought Losses Based on Non-Uniform Frequency Method
摘要
Abstract
Based on the drought losses data from 1959 to 1999 of China,this paper applied the heuristic segmentation algorithm method to find a change point and used the non-uniform frequency analysis method to analyze the frequency of the national drought loss series,and obtained three approximate parallel curves of drought loss frequency sequences based on different periods which presented a kind of temporal regularity. In addi-tion,combined with the annual average rainfall data of China during 1951-1998,the rationality of the result was analyzed.关键词
旱灾损失/水文频率分析/非一致性频率分析法/启发式分割算法/降水量Key words
drought losses/hydrologic frequency analysis/non-uniform frequency analysis method/heuristic segmentation algorithm method/rain-fall分类
天文与地球科学引用本文复制引用
汤瑞琪,费振宇,周玉良,欧阳蔚..基于非一致性频率的全国旱灾损失风险分析[J].人民黄河,2013,(12):50-53,4.基金项目
水利部公益性行业科研专项（201001043）；国家自然科学基金资助项目（71273081，41171075，51109052）；中国气象局成都高原气象开放实验室基金资助项目（LPm2011002）。 （）
