Thank you for your interest to the WRDC web-server data. In accordance with the WMO Resolution 40(Cg-XII), these data are intended for research and educational communities of countries - WMO Members for their non-commersial activities. To make the WRDC web-server more helpful for users, would you send your comments and, in particular, inform us in which project you are going to use the data presented,at the e-mail address:wrdc@main.mgo.rssi.ru