Supported by the climatic variation special project of China Meteorological Administration under Grant No.CCSF2007-31;the National Natural Science Foundation of China under Grant No.40633015.
Invoking 45-yr daily European Centre for Medium-range Weather Forecasts (ECMWF) reanalysis data, firstly all the sudden stratospheric warming (SSW) events are selected in these years, which can be classified into ...