| 华东冬季异常冷暖与大气环流和海温的关系 |
| |
| 引用本文： | 任广成,令聪婧,蔡开华.华东冬季异常冷暖与大气环流和海温的关系[J].气象科学,2009,29(6):775-780. |
| |
| 作者姓名： | 任广成 令聪婧 蔡开华 |
| |
| 作者单位： | 1. 中国人民解放军96631部队,北京,102208
2. 中国人民解放军96363部队,甘肃,天水,741020 |
| |
| 摘 要： | 利用1951-2007年华东地区14个代表站冬季(12-2月)温度资料和北半球500 hPa高度及北太平洋海温资料,通过合成分析、相关分析等方法,研究了华东地区冬季气温的气候变化及其与北半球500 hPa高度场、北太平洋海温场的关系.结果表明:华东地区冬季气温具有明显的年代际气候变化特征;前期夏季北半球500 hPa高度距平场和前期春季北太平洋海温距平场分布可作为华东冬季异常冷暖年的前兆信号;夏季北太平洋中部地区500 hPa高度场变化及前期10月西太平洋副高强弱变化,对华东地区冬季气温变化具有很好的指示性;春季南赤道海流区和西风漂流区海温异常变化,对华东地区冬季气温变化也具有很好的指示意义.
|
| 关 键 词： | 冬季气温 异常冷暖 关系分析 |
| 收稿时间： | 4/9/2008 12:00:00 AM |
The abnormally cold and warm winter in the east area of China and its relationship with general circulation of atmosphere and sea temperature |
| |
| Ren Guangcheng,Ling Congjing,Cai Kaihua.The abnormally cold and warm winter in the east area of China and its relationship with general circulation of atmosphere and sea temperature[J].Scientia Meteorologica Sinica,2009,29(6):775-780. |
| |
| Authors: | Ren Guangcheng Ling Congjing Cai Kaihua |
| |
| Abstract: | Using the spring (December-February) air temperature data of East China from 1951 to 2007, the 500 hPa geopotential height of the North hemisphere, and the SST data of the North Pacific Ocean, the relation between the climatic change of winter atmospheric temperature in the eastern area of China, the 500 hPa geopotential height of the North hemisphere and the sea surface temperature (SST) field have been analysed through methods of composite analysis and relation analysis. It is found that the winter air temperature in the eastern China has obviously decadal climate variation characteristic. The 500 hPa geopotential height of the North hemisphere in the preceding summer and the distribution pattern of the departure of SST in North Pacific Ocean in the preceding spring may be used as the precursory signals for the abnormally cold and warm in the east area of China. The variation of 500 hPa geopotential height of the middle areas in the North Pacific Ocean in summer and the change of subtropical high of the West Pacific Ocean in the preceding October are able to predict variation of the winter atmospheric temperature in the eastern China. The intensity change of the areas of South Equatorial current area and westwind drift area in the former spring is also meaningful for this purpose. |
| |
| Keywords: | Winter air temperature Abnormal cold/warm Relationship analysis |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《气象科学》浏览原始摘要信息 |
| 点击此处可从《气象科学》下载免费的PDF全文 |
|
