MAIN PAGE GENERAL INFORMATION PUBLICATIONS PERSONNEL PROJECTS RECENT DATA NEWS PHOTO GALLERY RELATED LINKS CONTACT INFORMATION OZONE SATELLITE DATA CENTRE WEATHER RADAR ON LUOSTO FELL DATABASE SGO	OPERATING BUILDING Operating building Operating building as seen from the tower. Radiosonde is prepared for launch. GO UP Balloon is filled with hydrogen. On night soundings when sounding operator is on duty alone, helium is used for safety reasons. Yet another balloon launch. Since 1949 over 40000 radiosondes have been lifted to the air. UV instruments are packed for intercomparison measurements to be carried out at Jokioinen (June 2001). GO UP