1982 21 48 2007 2 2008 1 FTIR PSC 7 9 9 <220 DU 220 DU 2000 [WMO Ozone Assessment 2006 ] 64 40 2007- 2008 7 9 2007 6 10 4 32 10 4 (10 3 15 20 km PSC 2 FTIR FTIR 0.0035 cm -1 PSC FTIR 0.2 cm -1 2007 8 28 2007 3 25 FTIR 69.0S, 39.6E 1957 58 IGY) 5000 km 300 km 15 17 km PSC 21 km PSC 14 km PSC FTIR FTIR O3, CO2, H2O, ClONO2 2007 2 2008 1 7 PSC 7 PSC PSC ]