地理研究 ›› 1991, Vol. 10 ›› Issue (1): 56-64.doi: 10.11821/yj1991010006

• 论文 • 上一篇    下一篇

北太平洋海面温度的年变化型及区划

卢文芳   

  1. 上海市气象局
  • 出版日期:1991-03-15 发布日期:1991-03-15

ANNUAL VARIATION PATTERNS AND COMPARTMENTATION OF THE NORTH PACIFIC SST

Lu Wenfang   

  1. Sanghai Meteorological Bureau
  • Online:1991-03-15 Published:1991-03-15

摘要: 本文用主成分分析方法,根据1949—1987年北太平洋286个格点的月平均海面温度资料,求得北太平洋海面温度的12种年变化型。讨论了前三种年变化型(占总方差的95%)的特点。分别计算了前三种年变化型对各格点的贡献率,再根据贡献率的空间分布图,将北太平洋海面温度分成八个区域,每个区域海温都有各自的统计特征。

关键词: 海面温度, 北太平洋

Abstract: The 286 grid data of monthly mean SST from 1949 to 1987 in North Pacific are analysed by the prinicipal component analysis.Based on the analysis, there are twelve patterns of annual variation of the North Pacific SST. This paper gives a disussion on characteristics of the first three annual variation patterns which account for 95 percent of the total variance.Contributive percentages of these first three patterns at each grid point are also calculated respectively.Thus the North Pacific SST cans be divided into eight regions, as a result of inspecting the special distribution of the percentages.Finally, the different SST statistical feature within each region has been explained.

Key words: SST, North paeific