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利用COADS资料,首先计算了1949-1979年逐月北太平洋洋面的潜热通量与感热通量之和,并进行EOF分解,然后分析它们的时空变化特征。结果表明:1.在北太平洋,李平均热通量值的季节变化具有两种型式,而且主要决定于风速值的季节变化,尤以东亚季风的效应为最明显。2.暖池区全年平均的多年月平均热通量及其标准差都居北太平洋诸洋流区之首。3.北太平洋异常热通量场具有最重要的两种类型。1月异常热通量主要类型的年际振荡由同期阿留申低压南北向摆动所引起,其他各季主要类型的年际变化具有明显跃变。
Using COADS data, the sum of the latent heat flux and the sensible heat flux of the north Pacific ocean surface from 1949 to 1979 was calculated, and EOF decomposition was performed, and then their temporal and spatial variation characteristics were analyzed. The result shows: 1. In the North Pacific, there are two types of seasonal variations in the average heat flux for Lee, which are mainly determined by the seasonal variations in wind speed, especially in the East Asian monsoon. 2. The average annual average annual heat flux in the warm pool area and its standard deviation are the highest among all ocean currents in the North Pacific Ocean. 3. The North Pacific anomalous heat flux field has the two most important types. The main type of interannual oscillations of the anomalous heat flux in January was caused by the north-south swing of the Aleutian low pressure during the same period, and the interannual variations of the other major types of the major seasons have shown significant changes.