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| 基于响应单元的太湖流域干旱分析方法研究 | |
| 引用本文： | 周祥林,陆宝宏,戴甦,孙婷婷,关云霞,崔亚军,余赛英.基于响应单元的太湖流域干旱分析方法研究[J].水资源保护,2006,22(2):6-10. |
| 作者姓名： | 周祥林 陆宝宏 戴甦 孙婷婷 关云霞 崔亚军 余赛英 |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098 2. 太湖流域管理局防汛抗旱办公室,上海,200434 3. 贵州省水文水资源局,贵州,贵阳,550002 4. 河南省水文水资源局,河南,郑州,450003 5. 福建省水文水资源勘测局,福建,福州,350001 |
| 摘 要： | 提出一种将区域或流域划分成若干个不同的响应单元,把每一个响应单元看作一个点,借助于点干旱指标评价的方法分析面干旱,并应用到太湖流域。通过太湖流域干旱记录与三种基于降雨的常用指标的对比分析,得出Z指数法的精度最高,标准化降水指标(SPI)次之,降水距平百分率(PAI)最低,而且Z指数法显示太湖流域的旱情主要发生在夏秋季节。Z指数法考虑了降水的时空分布特性,具有多时间尺度特性,反映出了不同时间尺度的水分状况。 |
| 关 键 词： | 响应单元 面干旱 太湖流域 点干旱指标 聚类分析 |
| 文章编号： | 1004-6933（2006）02-0006-05 |
| 收稿时间： | 2005-09-15 |
| 修稿时间： | 2005-09-15 |
Study on areal drought analysis and evaluation method based on the response unit in Taihu Basin |
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| ZHOU Xiang-lin,LU Bao-hong,DAI Su,SUN Ting-ting,GUAN Yun-xia,CUI Ya-jun,YU Sai-ying.Study on areal drought analysis and evaluation method based on the response unit in Taihu Basin[J].Water Resources Protection,2006,22(2):6-10. | |
| Authors: | ZHOU Xiang-lin LU Bao-hong DAI Su SUN Ting-ting GUAN Yun-xia CUI Ya-jun YU Sai-ying |
| Affiliation: | 1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210(08, China ; 2. Taihu Basin Administrative Bureau, Shanghai 200434, China ; 3. Hydrological and Water Resources Bureau of Guizhou Province, Gulyang 550002, China; 4. Bureau of Hydrology and Water Resources of Henan Province, Zhengzhou 450003, China; 5. Water Resources and Hydrological Exploration and Development Bureau of Fujian Province, Fuzhou 350001, China |
| Abstract: | Based on the response units divided from regions or basins,a method of point drought index evaluation was proposed to evaluate areal drought.Through analysis and comparison of the drought record and three drought indices based on precipitation in Taihu Basin,it can be found out that the best method is Z-index,followed by standardized precipitation index(SPI) and precipitation anomaly index(PAI).The evaluation method of Z-index,which takes the spatial and temporal distribution characters of precipitation into consideration,can reveal the moisture-distribution in different time scales. |
| Keywords: | response unit areal drought Taihu Basin point drought index cluster analysis |
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