地理科学

地理科学 ›› 2006, Vol. 26 ›› Issue (5): 557-563.doi: 10.13249/j.cnki.sgs.2006.05.557

• 论文 • 上一篇    下一篇

冬季北大西洋海温年际、年代际变化与中国气温的关系

曲金华1,2, 江志红3, 谭桂容1, 孙力2   

  1. 1. 南京信息工程大学大气科学系, 江苏 南京 210044;
    2. 吉林省气象局业务处, 吉林 长春 130062;
    3. 南京信息工程大学资源环境与城乡规划系, 江苏 南京 210044
  • 收稿日期:2005-04-27 修回日期:2005-09-21 出版日期:2006-09-20 发布日期:2006-09-20
  • 基金资助:
    国家自然科学基金项目(40275019、40575047)资助。

Relation between Interannual, Interdecadal Variability of SST in North Atlantic in Winter and Air Temperature in China

QU Jin-Hua1,2, JIANG Zhi-Hong3, TAN Gui-Rong1, SUN Li2   

  1. 1. Department of Atmospheric Sciences, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044;
    2. Meteorological Bureau in Jilin Province, Changchun, Jilin 130062;
    3. Department of Rescurce, Environmengt and City Rural Planning, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044
  • Received:2005-04-27 Revised:2005-09-21 Online:2006-09-20 Published:2006-09-20

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被引次数

100

摘要： 利用NCEP/NCAR月平均再分析资料(1951~2001年)海洋表面月平均温度资料、500 hPa月平均高度场以及中国160站月平均气温资料,采用旋转方差极大正交旋转法(REOF)和小波变换等方法研究了冬季大西洋中低纬海表温度分布的主要模态及其与中国冬季气温的关系。结果表明,冬季北大西洋中部海表温度异常主要表现为2个基本模态,其中反映冬季大西洋20°~50°N区域海表温度异常的第二特征模态,在年际、年代际变化关系上与中国冬季平均气温关系非常密切。进一步研究表明,冬季北大西洋中部海表温度异常,可激发欧亚EU型环流,致使中国冬季气温异常。

Abstract: The main models of the distribution of mid-low-latitude Atlantic SST in winter and its relation with air temperature in China were researched by using NCEP/NCAR's mean SST, the height at the level of 500hPa reanalysis monthly data from 1951 to 2001 as well as the observed air temperature got from 160 observatories in China. The methods of REOF and wavelet transformation were adopted in this paper. The results show that SST anomalies in central north Atlantic in winter reflected two basic models, and the interannual and interdecadal variability of second model characteristics that can reflect SST anomalies in the field between 20癗 to 50癗 in Atlantic in winter has close relation with mean air temperature in China. In addition, the result also showed that it will result in higher air temperature when the SST anomalies in central north Atlantic in winter motivated Eurasian circulation of EU pattern.

中图分类号: 

  • P732