Ms. Zheng Lin Secretariat of IAMAS2005 LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences No.40, Huayanli, Chaoyang District, P.O. Box 9804, Beijing 100029, China Telephone : +86-10-62043436 Fax : +86-10-62043526 Email : iamas@lasg.iap.ac.cn