HR: 10:40h
AN: A51G-02 INVITED     [PDF]
TI: First Stage of Upper-stratospheric Ozone Recovery
AU: * Newchurch, M
EM: mike@nsstc.uah.edu
AF: U Alabama in Huntsville, NSSTC 320 Sparkman Dr. Huntsville, AL 35805, Huntsville, AL 35805 United States
AU: Yang, E
EM: yes@eas.gatech.edu
AF: Georgia Tech, Earth and Atmospheric Science, Atlanta, GA 30332 United States
AU: Cunnold, D
EM: cunnold@eas.gatech.edu
AF: Georgia Tech, Earth and Atmospheric Science, Atlanta, GA 30332 United States
AU: Reinsel, G C
EM: reinsel@stat.wisc.edu
AF: U of Wisconsin, Madison, Department of Statistics, Madison, WI 52706 United States
AU: Zawodny, J M
EM: j.m.zawodny@larc.nasa.gov
AF: Langley Research Center, Aerosol Research Branch, Hampton, VA 23681 United States
AU: Russell, J M
EM: JAMES.RUSSELL@hamptonu.edu
AF: Hampton University, Center for Atmospheric Science, Hampton, VA 23668 United States
AB: Global ozone trends derived from the Stratospheric Aerosol and Gas Experiment I and II (SAGE I/II) combined with the more recent Halogen Occultation Experiment (HALOE) observations provide evidence of a slowdown in stratospheric ozone losses since 1997. This evidence is quantified by the cumulative sum of residual differences from the predicted linear trend. The cumulative residuals indicate that the rate of ozone loss at 35-45 km altitudes globally has diminished. These changes in loss rates are consistent with the slowdown of total stratospheric chlorine increases characterized by HALOE HCl measurements. These changes in the ozone loss rates in the upper stratosphere are significant and constitute the first stage of a recovery of the ozone layer.
UR: http://vortex.nsstc.uah.edu/atmchem/recent_events/upperstrat03_recovery.html
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
DE: 1610 Atmosphere (0315, 0325)
DE: 6324 Legislation and regulations
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting