北太平洋海温场的时空特征分析
AN ANALYSIS OF THE SPACE-TIME CHARACTERISTICS OF THE SEA SURFACE TEMPERATURE FIELD IN THE NORTH PACIFIC OCEAN
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摘要: 近年来运用海表温度作副热带高压和长期天气预报方面取得了显著效果,为了进一步探讨海洋对气候和长期天气过程的影响,必须重视海温场的特征分析。这几年已有一些工作[1,3,7],从不同侧面对北太平洋海温场进行研究。本文试图从海—气相互作用的角度分析北太平洋海温场的时空分布特征及其年际变动,进而讨论它们对大气的影响。Abstract: The data used in this study are monthly mean sea temperatures covering the Pacific between 50°N and 10°s during the period 1949-1975.In this paper,empirical orthogonal,correlation and energy spectrum analysis methods were used.We have analysed the seasonal variations,the geographical distributions and interannual variarions of the sea surface temperature and some relationships among the currents in the North Pacific Ocean.The charcteristics of the sea temperature anomalies in the North Pacific are shown as follows:the large horizontal extent;the large vertical depth,the strong anomalous magnitude and the significant longterm oscillation.Finally,the possible effects of the sea temperature anomalies on the general circulation,and the relationship between the sea surface temperature and the North Pacific Subtropical High have also been discussed.
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中国科学院沈阳计算技术研究所,电子计算机常用算法,科学出版社,1976. 叶笃正等,东亚和太平洋上空平均垂直环流(一)夏季,大气科学,1979,1. 归佩兰,北太平洋海温特征及相应的大气环流型,中国科学院大气物理所集刊,6(1975). 地理所长期组,科学通报,1977,7. 李克让,陈永申等,北太平洋南北海温距平差对副高影响的若干事实,大气科学,1979,2. 符淙斌等,赤道海温异常与大气的垂直环流圈,大气科学,1979,1. Barnett,T.P and Davis,R.E.,WMO,1976,421,439-450. Bjerknes,J.,Monthly Weather Review,1969,3. Laevastu,D.T.,Rabe,M.K.and Hamiltom,C.D.,AD,738847(1972 Namias,J.,Use of SST in long-range prediction,WMO Techinical Note,1969,103. Weare,B,C.,Navato,A.R,and Newell,R.E.,Empirical orthogonal analysis of Pacific SST,J.of Physical Oceano.,6(1976),5. Wyrtki,K.J.,J.Phus.Oceanography,7(1977). -
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