海洋预报2012，Vol.29Issue(1)：42-47,6.
山东夏季不同雨型的前期异常大气环流及海温场特征
Early abnormal atmospheric circulation and SST characterstics in different pattern of summer rainfall in Shandong
摘要
Abstract
According to different pattern of summer rainfall in Shandong, the characteristics of abnormal atmo-pheric circulation in previous winter and spring, SST (Sea Surface Temperautre) in previous autumn, winter and spring are studied by using composite analysis method. The results show that there are obvious difference in early atmospheric circulation and SST among different rainfall patterns. For wetter rainfall pattern in large scale, the zonal circulation in mid-high latitude of Eurasia changes to meridional type and warm phase of SST in middle-east equator Pacific Ocean decreases or changes to cool phase fromearly winter to early spring. Meanwhile, the west Pacific subtropical high becomes weaker from previous December to early spring and becomes stronger from April to May. For dryer rainfall pattern in large scale, the characteristics is opposite to that of the wetter rainfall. For wetter rainfall pattern in the east Pacific and dryer rainfall in the west Pacific, the subtropical high keeps weaker in previous winter and spring, the zonal circulation is found in mid-high latitude of Eurasia and North America, and the La Nina event continues in previous autumn and winter and becomes weaker in spring. For wetter rainfall pattern in the west Pacific and dryer rainfall pattern in the east Pacifc, it shows opposite characteristics.关键词
夏季雨型/大气环流/海温Key words
rainfall pattern in summer/atmospheric circulation/SST分类
海洋科学引用本文复制引用
胡桂芳,徐学义,高理..山东夏季不同雨型的前期异常大气环流及海温场特征[J].海洋预报,2012,29(1):42-47,6.基金项目
山东省气象局项目(2009sdqxz09) （2009sdqxz09）
