| 临安市近50年降水量变化特征分析 |
| |
| 引用本文： | 王涛,孙小平,陈云蔚.临安市近50年降水量变化特征分析[J].青海气象,2011(2). |
| |
| 作者姓名： | 王涛 孙小平 陈云蔚 |
| |
| 作者单位： | 浙江省临安市气象局; |
| |
| 摘 要： | 利用临安1959—2008年50年降水资料,对临安降水量进行统计分析。结果表明:临安20世纪60年代和21世纪初期年降水量有明显减少趋势,20世纪80、90年代降水量增加趋势明显;临安降水量年内变化大,降水量月分配不均匀,全年降水量主要集中在汛期5—9月,降水最多的月份为6月;临安的降水有丰枯交替变化的规律,降水量出现了42年左右的变化周期。并对临安年、季、汛期进行线性趋势分析,分析表明:临安年、夏季和冬季降水量有增加趋势,其中夏季增加趋势最明显;春季、秋季和汛期降水量有减少趋势,其中秋季减少趋势最明显。
|
| 关 键 词： | 临安 降水量 降水特征 变化趋势 |
An analysis of the characters regarding the 50-year precipitation variation in Lin'an |
| |
| Authors: | Wangtao Xunxiaoping Chenyunwei |
| |
| Institution: | Wangtao Xunxiaoping Chenyunwei(Lin'an Bureau of Meteorology,Lin'an,Zhejiang,311300) |
| |
| Abstract: | A statistical analysis on the variation of Lin'an 50-year precipitation which is from 1959 to 2008 is done in this paper.The results suggest that there is an evident decreasing trend of annual precipitation in the 1960s and in the first decade in 21st centurary,while in the 1980s and 1990s there is an obvious increasing trend in annual precipitation.The analysis shows that there is a significant variation of the precipitation in one year: the rainfall in a year mainly concentrate the period from May to Sept... |
| |
| Keywords: | Lin'an precipitation the character of rainfall variation trend |
| 本文献已被 CNKI 等数据库收录！ |
|
