Regional Differences and Abrupt Change Characteristics of East Asian Winter Monsoon in Different Regions
Using the ECWMF reanalyzed data of temperature, sea level pressure (mslp) and from 1 September 1957 to 31 August 2002 the east Asian winter monsoon region was divided into three sub-regions: Mongolia region, Japan region and East China region. The changing characters of 1000 hPa temperature, mslp, wind and precipitation along time were analyzed and apparent differences of the evolvement were found among the three sub-regions, according to which we can regard it necessary to divide Asian winter monsoon into sub-regions and research them, respectively. Meanwhile it is find that the direction of the wind tends to have abrupt change in the winter monsoon onset process and the retreat process. Climatic tests of the abrupt changes of the wind in separate sub-regions were done, and the different onset and retreat dates of them were found.
East Asian winter monsoonRegional differencesAbrupt changeEOF/REOFStandardized finite temporal variation
NETL
NSTL
万方数据
维普
