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本文利用综合海洋大气(COADS)资料,计算了0°—10°N、70°—120°E和0°—10°S、7O°—120°E两地区1950—1979年逐月纬向和经向风的平均值,并与东太平洋表面海温(以下简称海温)进行了相关分析,得出在ENSO发生前,印度洋赤道地区有纬向西风偏强和经向北风偏强,与南印度洋的气旋性环流加强相联系,ENSO发生时,异常情况完全相反,同时分析了30°—40°N、120°—140°E地区经向风的变化与ENSO的关系,在ENSO发生前,印度洋赤道地区的西风偏强和赤道以北的北风偏强与印度尼西亚地区的高海温异常有关,而东亚强的冬季风可影响印度尼西亚纬向西风的异常。
Based on COADS data, the monthly latitudinal and latitudinal latitudes of 1950s-1979s at 0 ° -10 ° N, 70 ° -120 ° E and 0 ° -10 ° S, 70 ° -120 ° E are calculated. The mean value of meridional wind and the surface temperature of the eastern Pacific surface (hereinafter referred to as SST). It is concluded that before ENSO, the westerly westerly winds in the equatorial Indian Ocean region are stronger and the warp northward wind is stronger, In the South Indian Ocean, the cyclonic circulation strengthens. When ENSO occurs, the anomalies are completely opposite. At the same time, the relationship between the meridional wind changes and ENSO at 30 ° -40 ° N and 120 ° -140 ° E is analyzed. The strong westerly winds in the equatorial Indian Ocean and the strong north-easterly winds north of the equator are related to the high SST anomalies in Indonesia, while the strong winter monsoon in East Asia may affect the zonal westerly anomaly in Indonesia.