摘要
用北太平洋（含赤道太平洋区）１９４９～１９７９年的ＣＯＡＤＳ资料，通过矢量ＥＯＦ分解得到北太平洋异常风场的分布型及其时间变化规律。分析表明，ＥＯＦ１～５场与大气活动中心、海洋相互作用有联系，具有明显的天气学意义。此外，还讨论了ＥＯＦ异常风场间的转换及其季节性差异。
The vector EOF analysis method is employed to analyze the wind data (COADS) of the northern Pacific (including the equatorial Pacific) from 1949 to 1979 and several dominant anomalous wind modes and their time variations are obtained. EOF1-5, which have prominent synoptic signifcance, closely link with the atmospheric movement centers and the air-sea interaction. In addition, the transformation and seasonal difference of these modes are discussed.
基金
国家自然科学基金
中国气象局科研基金
关键词
北太平洋
海面
风场
时空分布
海气
热量交换
Northern Pacific
sea surface wind
time-space distribution
EOF analysis
air-sea heat exchange
