进入七十年代以来,异常的天气气候给世界各地造成了非凡的灾害,一些地区出现少见的暴冷、酷热或持续干旱、雨涝,从而给工农业生产、能源交通、人类的活动乃至人民的生命财产带来了严重的影响。科学家们发现,在造成天气气候异常的诸因素中,“厄尔尼诺”是主要的导火线之一,并充当了主要角色。在通常年份中,厄尔尼诺现象只是局限性的,但每隔2～7年(没有固定周期),厄尔尼诺现象会急剧 Since the 1970s, unusual weather and climate have caused extraordinary disasters in various parts of the world. In some areas, there have been rare cold and heat, or prolonged drought and rain and waterlogging, thus giving rise to industrial and agricultural production, energy and transportation, human activities and even people Life and property have had a serious impact. Scientists have discovered that “El Niño” is one of the main fighters and plays a major role among the factors that contribute to the abnormal weather and climate. During the usual years, the El Niño phenomenon is only limited, but the El Niño phenomenon will be sharp every 2 to 7 years (with no fixed cycle)