Dear RegCNET mail administrator, Please add my mail address (zxie at lasg.iap.ac.cn) in new list. Best Regards, Zhenghui Professor Zhenghui Xie Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029, China http://web.lasg.ac.cn/staff/xie/xie.htm e-mail: zxie at lasg.iap.ac.cn Tel.86-10-62035477(o) 13911012431(c) Fax.86-10-62045278