摘要
利用“三角形方法”，分别对云南西部、中部和东部３个三角形区域的水汽通量散度，假相当位温，垂直速度等物理量进行诊断分析，发现１９８０年夏季云南先后受到东亚季风和印度季风的影响．其中，东亚季风首先影响东部地区；之后，印度季风爆发，并影响西部、中部和东部地区，其影响范围和强度都超过了东亚季风；而东部受到两个季风系统的影响，是两种季风的交汇之处．
A scheme named “Triangle Method”is used to calculate the divergence of the moisture flux,potential pseudo-equivalent tepmperature,vertical velocity and other physical quantities,respectively,in three triangle areas,such as the West, the Middle and the East part of Yunnan province.According to the analysis,we find that Yunnan was affected by two Asian summer monsoon systems in the summer of 1980.The results showed that:first,the East Asian monsoon had its effects upon the East part of Yunnan;then,the Indian monsoon explosived and soon inffluenced upon the whole three areas of Yunnan.And the later had its stronger and bigger quantity than the former one.Additionally,we find that in 1980,the East part of Yunnan was affected by the two summer monsoon systems, so it may be the demorcation of them.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
1998年第1期75-79,共5页
Journal of Yunnan University(Natural Sciences Edition)
关键词
印度季风
东亚季风
云南
夏季风
演变
Indian monsoon,East Asian monsoon,Yunnan,summer monsoon
