秘鲁南部塔克纳附近海岸常位于阿塔卡马沙漠北缘，是世界上最干燥的地区之一，历史上降水量从未超过２５ｍｍ／ａ。地质和历史资料汇编显示，降雨发生在厄尔尼诺事件期间。最近的气象资料分析表明，上升高原和安第斯中部厄尔尼诺现象以干燥度增高为特征。本文提出秘鲁南部海岸 The coast near Tacna, southern Peru, is often located on the northern margin of the Atacama Desert, one of the driest in the world, with precipitation never exceeding 25mm / a in history. A compilation of geological and historical sources shows that rainfall occurred during the El Nino event. Recent meteorological data analysis shows that El Niño, rising plateau and central Andes, are characterized by increased dryness. This paper presents the southern coast of Peru