Variations of South Asia High and West Pacific Subtropical High and their Relationships with Precipitation
南亚高压和西太平洋副热带高压的变化及其与降水的联系

Using the precipitation data of 160 climatic stations in China and NCEP/NCAR reanalysis data,the characteristics on South Asia High(SAH) and the Wes Pacific Subtropical High(WPSH) and their effects on precipitation in mid-summer were analyzed.The results showed that the index of eastward extension of SAH had time scales of 3~6 a periods,10~15 a and approximate 20 a period.The index of westward extension of WPSH had time scales of 3~6 a and approximate 20 a periods.Also the relations between the index of eas...