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| 浙江省汛期降水量的区域特征分析 | |
| 引用本文： | 滕卫平,俞善贤,胡波,项云法.浙江省汛期降水量的区域特征分析[J].科技通报,2010,26(1):32-38. |
| 作者姓名： | 滕卫平 俞善贤 胡波 项云法 |
| 作者单位： | 1. 浙江省气象科学研究所,杭州,310017 2. 浙江省气象台,杭州,310017 3. 缙云县气象局,浙江,缙云,321400 |
| 基金项目： | 浙江省科技厅重点项目(2005C23077)资助 |
| 摘 要： | 运用旋转主因子分析（REOF）方法对1961—2005年浙江省38个测站的汛期降水量进行了客观分区和分析。结果表明，浙江梅汛期和台汛期降水量可分别划分为4个区；梅汛期区域降水分布以浙西南区最多，浙东南区次之，浙北区和浙中东部最少。降水量从北到南逐渐增多，且有西部多于东部的分布特征。降水主要由西风带天气系统的影响造成的。台汛期区域降水分布以浙东南区最多，浙北区和东部沿海次之，浙西南区最少。降水量由西向东有明显增多的分布特征。降水主要由热带和东风带天气系统的影响造成的；近45年来各区域汛期降水量的长期变化趋势不尽相同，梅汛期除了浙北区的降水量有比较明显的增加以外，其他区域降水变化趋势不明显。台汛期在浙东南和东部沿海区降水量有显著的增加趋势，其他区域降水变化趋势不显著。 |
| 关 键 词： | 浙江省 汛期降水 旋转主因子方法 区域特征 |
The Regional Characteristics of Rainfall in Flood Seasons in Zhejiang |
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| TENG Weiping,YU Shanxian,HU Bo,XIANG Yunfa.The Regional Characteristics of Rainfall in Flood Seasons in Zhejiang[J].Bulletin of Science and Technology,2010,26(1):32-38. | |
| Authors: | TENG Weiping YU Shanxian HU Bo XIANG Yunfa |
| Institution: | 1.Zhejiang Meteorological Science Research/a>;Hangzhou 310017/a>;China/a>;2.Zhejiang Meteorology Observatory/a>;3.Jinyun Meteorological Bureau/a>;Zhejiang Province/a>;Jinyun 321400/a>;China |
| Abstract: | By use of REOF,the rainfall fields at 38 stations in flood seasons from 1961 to 2005 were brought into several sections.The results show that the rainfalls in plum-flood seasons and typhoon-flood seasons could were divided into 4 regions.The rainfall of in plum-flood seasons in southeast of ZheJiang ranks first much,southeast second and others last.From the north to south the rainfall increases and the west is more than the east.The rainfall is mainly generated by west-wind systems.In typhoon-flood seasons ... |
| Keywords: | Zhejiang province rainfall of flood seasons rotated EOF regional characteristic |
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