| 中国东部的降水区划及备区旱涝变化的特征 |
| |
| 引用本文： | 陈烈庭,吴仁广.中国东部的降水区划及备区旱涝变化的特征[J].大气科学,1994(5). |
| |
| 作者姓名： | 陈烈庭 吴仁广 |
| |
| 作者单位： | 中国科学院大气物理研究所 |
| |
| 基金项目： | 国家自然科学基金,中国科学院“长江、黄河旱涝发生规律、成因及其预测”研究项目 |
| |
| 摘 要： | 为了研究我国旱涝发生的规律、成因和预测，事先掌握降水的气候型区和各区降水变化的气候特征是十分必要的。本文利用１９５１—１９８６年中国东部１４０个站的月降水资料，分析了下半年降水相对系数、月际和年际标准差等参量时空变化的特征，并综合应用逐级归并法和成批调整法，对中国东部地区进行了降水气候区的划分。在此基础上，进一步探讨了各区旱涝的频数和长期变化的趋势。
|
| 关 键 词： | 降水区划 聚类分析 旱涝变化。 |
Climatic Division of Precipitation in Eastern China and Drought-Flood Variation in Various Regions |
| |
| Chen Lieting and Wu Renguang.Climatic Division of Precipitation in Eastern China and Drought-Flood Variation in Various Regions[J].Chinese Journal of Atmospheric Sciences,1994(5). |
| |
| Authors: | Chen Lieting and Wu Renguang |
| |
| Abstract: | In this paper, the characteristics of the monthly and annual relative coefficients, and the intermonthly and interannual standard deviations of precipitation in summer half year are investigated using the monthly precipitation data of 140 stations in eastern China for period from 1951 to 1990. The climatic division of precipitation in eastern China is made by applying cluster analysis to these four precipitation indices. Finally, the occurrence frequencies and the long-term trends of drought and flood are analyed for each climate region. |
| |
| Keywords: | climatic division cluster analysis drought-flood trend |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《大气科学》浏览原始摘要信息 |
| 点击此处可从《大气科学》下载免费的PDF全文 |
