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| 淮河流域2007年雨季环流、影响系统及天气特征分析 | |
| 引用本文： | 周述学,黄春生,张晓红,彭余海.淮河流域2007年雨季环流、影响系统及天气特征分析[J].气象科学,2008,28(Z1). |
| 作者姓名： | 周述学 黄春生 张晓红 彭余海 |
| 作者单位： | 1. 南京大学大气科学系,南京,210093;安徽省人工影响天气办公室,合肥,230061 2. 安徽省蚌埠市气象局,安徽,蚌埠,233000 3. 淮河流域气象中心,安徽蚌埠,233000 |
| 基金项目： | 中国气象科学研究院灾害天气国家重点实验室基金 |
| 摘 要： | 利用NCEP再分析资料、常规气象资料分析淮河流域2007年雨季洪水期间大气环流及影响系统的时空分布,对雨季偏长及致洪暴雨气象成因进行了探讨.结果发现淮河流域雨季偏长与西太平洋副热带高压(副高)伸入大陆稳定脊线位置以及中高纬度建立稳定的阻塞高压有密切的关系;出现的持续性暴雨都与中纬度附近稳定的横槽或低压带有关;暴雨都是多个影响系统叠加的结果,与它们的位置有一定的对应关系.影响系统主要有低层切变线、西南涡和急流.2007年淮河雨季期间来自西北太平洋副热带高压西侧的东南气流和来自孟加拉湾的西南气流对淮河流域降水区水汽的输送起主要作用;低层辐合、高层辐散增强了上升运动,为持续强降雨提供了动力条件,并触发能量的释放. |
| 关 键 词： | 致洪暴雨 天气成因 天气特征 |
Analysis of circulation systems and characters of weather during 2007 Huaihe River rainy season |
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| Zhou Shuxue,Huang Chunsheng,Zhang Xiaohong,Peng Yuhai.Analysis of circulation systems and characters of weather during 2007 Huaihe River rainy season[J].Scientia Meteorologica Sinica,2008,28(Z1). | |
| Authors: | Zhou Shuxue Huang Chunsheng Zhang Xiaohong Peng Yuhai |
| Institution: | Zhou Shuxue1,2 Huang Chunsheng3 Zhang Xiaohong4 Peng Yuhai3(1 Department of Atmospheric Sciences,Nanjing Univercity,Nanjing 210093)(2 Anhui Weather Modification Office,Hefei 230061)(3 Bengbu Meteorological Bureau,Anhui Bengbu 233000)(4 Huaihe River Basin Meteorological Center,Anhui Bengbu 233000) |
| Abstract: | By use of NCEP data,high data and intensive surface data,the spatial and temporal evolution characteristics of the weather systems and atmospheric circulation during 2007 flood in the Huaihe River basin have been analyzed.The cause of longer rainy season and the heavy rainfall causing is focused on.The following conclusions are drawn: The edge of west Pacific subtro pical high was stable near 26 and the block high pressure systems near Ural mountain in high latitudes was very favorite for the occurrence of ... |
| Keywords: | Flood-causing heavy rain Weather causes Weather characteristics |
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