HR: 0800h
AN: SA41A-1035    [Abstracts]
TI: Seasonal Variation of Mesospheric Ozone Over Three Decades
AU: * Merkel, A W
EM: merke@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, POB 3000, Boulder, CO 80303 United States
AU: Marsh, D R
EM: marsh@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, POB 3000, Boulder, CO 80303 United States
AU: Smith, A K
EM: aksmith@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, POB 3000, Boulder, CO 80303 United States
AU: Mlynczak, M G
EM: M.G.Mlynczak@nasa.gov
AF: Atmospheric Science Division, NASA Langley Research Center, Hampton, VA 23681
AU: Russell, J M
EM: James.Russell@HAMPTONU.EDU
AF: Center for Atmospheric Sciences Center for Atmospheric Sciences, Hampton Universtiy, Hampton, VA 23668
AB: Mesospheric ozone has been measured over the last three decades from the Solar Mesosphere Explorer (SME: 1982-1986), High Resolution Doppler Imager (HRDI: 1992-1996) and the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER: 2002-2004). Previous climatological studies of SME and HRDI ozone have shown that chemistry and dynamics play major roles in defining the seasonal variation. Both annual and semiannual oscillations are present indicating that factors affecting the seasonal variability in ozone include the distribution of water vapor and temperature, changes in solar insolation and tidal forcing. With the addition of an ozone climatology from SABER, this work compares the ozone seasonal variations as viewed by three satellites. In particular, we investigate how differences in satellite sampling can affect the perceived seasonal variations.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
SC: SPA-Aeronomy [SA]
MN: 2004 AGU Fall Meeting