HR: 1340h
AN: A13D-0989    [Abstracts]
TI: Forecasting stable long lived Antarctic ozone holes
AU: * Neuendorffer, A C
EM: art.neuendorffer@noaa.gov
AF: NOAA/NESDIS/ORA, E/RA2, Room 7105 5200 Auth Road, Camp Springs, Md 20746
AU: Long, C
EM: craig.long@noaa.gov
AF: NOAA/NWS/CPC, W/NP52 5200 Auth Road, Camp Springs, Md 20746
AB: Stable Antarctic ozone holes that survive into late November threaten the Antarctic coastal ecology with levels of ultraviolet radiation that exceed tropical levels. Since the breakdown of the lower stratospheric vortex proceeds from the top down it is logical to examine the state of the wintertime upper stratosphere for clues to the ultimate stability of the springtime ozone hole. For instance, the chaotic 2002 Antarctic polar vortex was preceded by a remarkably early (i.e., June) strong sudden stratospheric warming at the 2hPa level, where as, the stable 1987 Antarctic polar vortex did not suffer such a strong upper stratospheric warming until late August. Such wintertime upper stratospheric warmings can now be accurately monitored using NOAA's polar orbiting Advanced Microwave Sounding Units. This paper examines the feasibility of using AMSU wintertime measurements of upper stratospheric temperatures to forecast for the stability of springtime Antarctic ozone holes.
DE: 0342 Middle atmosphere: energy deposition (3334)
DE: 3334 Middle atmosphere dynamics (0341, 0342)
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005