亚欧大陆经向热力差异对亚洲季风影响的研究Ⅱ:对东亚夏季风的影响  

Research on the Influence of meridional heat difference on the Eurasian to Asian monsoon Ⅱ:Effect on the east asian summer monsoon

作　　者：金燕[1] 晏红明[1] 严华生[2] 周建琴[1] 

机构地区：[1]云南省气候中心,云南昆明650034 [2]云南大学大气科学系,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2012年第4期437-445,共9页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(40675045;41065004);NSFC-云南联合基金资助项目(U0833602);公益性行业专项项目(GYHY201206017)

摘　　要：通过比较亚欧大陆经向热力异常年份冬季及后期热力场、海温和对流活动的变化特征后,初步得出如下结论:亚欧大陆南、北区域间的热力差异从冬季持续到春季,一般在4月份减弱消失.由于后期初夏和夏季的热带海温和东亚地区空间热力分布的不同,引起经向环流异常,从而导致东亚地区季风转换及降水分布的不同.Through comparing the variation characteristics of thermodynamic field, SST and convective activities in Eurasian meridional heat anomaly years winter and the late period, conclusions ihave been drawn as follows：The Eurasian thermal difference exists from winter to spring, and disappeares in April. Meanwhile, the meridional circulation will emerge anomaly in late early - summer and summer, resulting from the difference in tropical SST and East Asia spatial distribution of heat, leading to the East Asia monsoon transform and precipitation distribution differences.

关 键 词：亚欧大陆 经向热力差异 后续变化 夏季风 

分 类 号：P425[天文地球—大气科学及气象学]