Aerosol, greenhouse gas, temperature, water vapor and wind observations in the atmosphere were carried out from 17 February 2000 to 19 January 2001 using aircraft around Syowa Station and along oversnow vehicle tracks between Syowa Station and Point MD210. Nine flights of the Pilatus PC-6 aircraft were conducted around Syowa Station, 16 flights of Pilatus PC-6 aircraft and 18 flights of the Cessna A 185F aircraft between Syowa Station and Mizuho Station, and one flight of the Pilatus PC-6 aircraft between Syowa Station and Point MD210. Continuous measurement of carbon dioxide concentration and air samplings using flasks were carried out from 7200m altitude to 900m altitude at 900m intervals around Syowa Station. Continuous observations of aerosol number density, temperature and water vapor were carried out along with dropsonde observations along the tracks every month except in the dark season. The dropsondes were launched at about 150km intervals along tracks.