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本文分析了东亚中纬度经向风的变化与东太平洋海温的关系。指出埃尔—尼诺发生前,东亚中纬度总出现一段时间加强的北风。由此造成冷空气南下,使得我国在埃尔—尼诺发生前出现持续性的低温。持续低温的出现,可以作为预报埃尔—尼诺发生的指标。
This paper analyzes the relationship between the variation of the meridional wind in East Asia and the SST in the East Pacific. Pointed out that El-Nino occurred before mid-latitudes in East Asia have been some time to strengthen the north wind. As a result, the cold air south led to a sustained low-temperature in our country before the El Nino event. The appearance of persistent hypothermia can be used as a predictor of El Nino occurrence.