| 华南前汛期降水与500hPa高度场耦合关系特征 |
| |
| 引用本文： | 黄晓东,郑伟杰.华南前汛期降水与500hPa高度场耦合关系特征[J].气象,2005,31(10):35-38. |
| |
| 作者姓名： | 黄晓东 郑伟杰 |
| |
| 作者单位： | 广东省江门市气象局,529000 |
| |
| 摘 要： | 利用NCEP／NCAR提供的1950～1999年4～6月逐日再分析资料，通过奇异值分解、子波变换等方法分析了华南前汛期降水与500hPa位势高度场耦合关系的多时间尺度特征。结果表明：华南前汛期降水和500hPa位势高度场相互耦合的空间分布型、季节内变化存在明显的年际差异，具有多层次、多时间尺度特征；华南前汛期降水和高度场耦合相关型许多一致的年际、年代际周期表明两者长期变化的耦合关系密切；另外，两者的年代际突变都十分显著。
|
| 关 键 词： | 华南前汛期降水 500hPa位势高度场 耦合关系 多时间尺度 |
Multiple Temporal Scale Feature of Coupled Relationship between Rainfall in First Flood Season of South China and 500hPa Height |
| |
| Huang Xiaodong, Zheng Weijie.Multiple Temporal Scale Feature of Coupled Relationship between Rainfall in First Flood Season of South China and 500hPa Height[J].Meteorological Monthly,2005,31(10):35-38. |
| |
| Authors: | Huang Xiaodong Zheng Weijie |
| |
| Institution: | Jiangmen Meteorological Office, Guangdong Province 529000 |
| |
| Abstract: | With the SVD(Singular Value Decomposition), wavelet transform, the multiple temporal scale feature of coupling relationship between rainfalls in the first flood season in South China and 500hPa geopotential height is investigated. Results indicate that rainfall-height coupled mode appears pronounced interannual difference, and various periodic variability. Characterized by the multiple level and multiple temporal scale, a lot of coincident periods between rainfall and Height field indicate the closed couple relationship between them, besides, they all appear decadal abrupt. |
| |
| Keywords: | rainfall first flood season of south China 500hPa geopotential height couple relationship multiple temporal scale |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象》浏览原始摘要信息 |
| 点击此处可从《气象》下载免费的PDF全文 |
