基金Supported by the NNSF of China(40876010)the Main Direction Program of the Knowledge Innovation Project of Chinese Academy of Sciences(KZCX2-YW-Q03-08)+2 种基金the R&D Special Fund for Public Welfare Industry(Meteorology)(GYHY200806010)the LASG State Key Laboratory Special Fund,the Foundation of E-Institutes of Shanghai Municipal Education Commission(E03004) and the Natural Science Foundation of Zhejiang Province(Y6090164)the Natural Science Foudation from the Education Bureaus of Anhui Province,China(KJ2011A135,KJ2011Z003)