摘要
对５月东亚至热带东印度洋表面温度距平主要特征向量场的分析表明，以苏门答腊为中心的热带海洋温度异常与南海季风爆发有密切关系。当该海域海温较常年偏暖（冷）时，南海季风爆发往往较迟（早），它可能是通过影响中南半岛与其南方热带海洋之间经向热力差异的变化来实现的。分析了从冬到夏南海－热带东印度洋海温距平主要特征向量场的时空演变，指出春末夏初以苏门答腊为中心的热带海温距平场特征可以追溯到冬季南海海温场的变化，后者与南海季风爆发也有较好关系，是预测南海季风爆发时间的一个有意义的指标。
The characteristics of the surface temperature deviation in East Asia-Tropical Eastern Indian Ocean and its relation to the South China Sea monsoon onset is analyzed by EOF technique. The results show that the SST condition in South China Sea-Tropical Eastern Indian Ocean has significant influence on the South China Sea monsoon onset. It is proceeded by altering the longitudinal thermal differences between East Asia and Tropical Eastern Indian Ocean. The warmer (colder) the SST in South China Sea-Tropical Eastern Indian Ocean, the weaker (stronger) the South China Sea monsoon. The results also indicates that the SST condition in South China Sea in winter can be used as a preceding sign for South China Sea monsoon onset.
出处
《热带气象学报》
CSCD
北大核心
2000年第2期115-122,共8页
Journal of Tropical Meteorology
基金
中科院重大项目!"南海夏季风活动及其影响的综合研究"
国家攀登项目!"南海季风试验"
国家基金资助!"南海上层海洋热力动力学变
关键词
南海-热带
东印度洋
南海
季风爆发
海温变化
South China Sea-Tropical Eastern Indian Ocean, South China Sea monsoon onset
longitudinal thermal differences
