A Method for Determining Intensity Index of East Asian Winter Monsoon
Using the monthly mean reanalysis data from NCAR/NCEP, difference values of the normalized sea level pressure between Siberian High and Austrilian Low in the Asia - Australia monsoon system, were put forward as a kind of index to describe the East Asian winter monsoon in the paper. It was shown that the new intensity indexes of East Asian Winter Monsoon were significantly negative correlation with the winter temperatures o-ver China except in the southwest highland regions. There was the correlation relationship in the most areas in Northeast, North China, East China and some areas in Northwest China. With the index, the intensity of EAWM was described reasonably and objectively by statistical analysis on the characteristics of circulations and sea surface temperatures. There was negative correlation relationship between the index and the sea surface temperature significantly over the western Indian Ocean in winter in synchronization.
East Asian Winter Monsoonintensityindexcharacteristics of circulationAsia -Australia monsoon system
NETL
NSTL
万方数据
维普
