| 区域干旱统计特征初步分析 |
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| 引用本文： | 宋慧珠,张世法.区域干旱统计特征初步分析[J].水科学进展,1994,5(1):18-25. |
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| 作者姓名： | 宋慧珠 张世法 |
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| 作者单位： | 水利部南京水文水资源研究所 南京210024 |
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| 摘 要： | 提出了区域干旱指标和分级,并在此基础上,初步分析了流域、南北方地区和全国不同层次地区近500年和分世纪的干旱事件发生的阶段性、持续性与各区干旱遭遇的可能性.文中对近500年来上述地区干旱笼罩面积的历时分布和历史上最严重的12个典型干旱年的地区分布进行统计和分析.
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| 关 键 词： | 区域干旱 干旱面积历时分布 统计特征 |
| 收稿时间： | 1993-03-16 |
Preliminary Analysis of the Statistical Characteristic for Regional Drought |
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| Song Huizhu,Zhang Shifa.Preliminary Analysis of the Statistical Characteristic for Regional Drought[J].Advances in Water Science,1994,5(1):18-25. |
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| Authors: | Song Huizhu Zhang Shifa |
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| Institution: | Nanjing Institute of Hydrolog and witer Resources |
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| Abstract: | The paper deals with mainly regional drought characteristics, including large river basin, region and state wide drought characteristics. According to regional drought indexes and degrees, which is calculated and determined in this paper, the stage-property and continuity of the drought. events for different centuries in the past. over 500 years is studied. The simultaneous possibility of the drought events in various regions are evaluated. The drought area-duration distribution cuves during 1470~1979 and the extreme drought regime of selected 12 years is analysed statistically. |
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| Keywords: | regional drought drought area-duration distribution statistical characteristics |
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