HR: 0830h
AN: A41D-0718    [PDF]
TI: Rigorous Metric For Quantifying Ozone Recovery
AU: * Yang, E
EM: yes@eas.gatech.edu
AF: Georgia Institute of Technology, School of Earth and Atmospheric Science, Atlanta, GA 30332 United States
AU: Cunnold, D M
EM: cunnold@eas.gatech.edu
AF: Georgia Institute of Technology, School of Earth and Atmospheric Science, Atlanta, GA 30332 United States
AU: Newchurch, M J
EM: mike@nsstc.uah.edu
AF: University of ALabama in Huntsville, Atmospheric Science Department, Huntsville, AL 35805 United States
AU: Reinsel, G C
EM: reinsel@stat.wisc.edu
AF: University of Wisconsin, Department of Statistics, Madison, WI 53706 United States
AU: Zawodny, J M
EM: j.m.zawodny@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center, Hampton, VA 23681 United States
AU: Russell, J M
EM: JAMES.RUSSELL@hamptonu.edu
AF: Hampton University, Center of Atmospheric Science, Hampton, VA 23668 United States
AB: Newchurch et al. [2003] have shown that, based on SAGE and HALOE measurements, decreases in upper stratospheric ozone have slowed since 1997. This conclusion depends upon an accurate removal of long-term changes such as those due to the solar cycle and an accurate assessment of the residual uncertainties. This poster discusses error propagation in the cumulative sum approach and why it should reveal a change in the trend faster than typical analysis procedures. The attribution of the ozone changes based on coincident HALOE measurements of ozone, HCl, CH4, H2O, and temperature is also addressed in more detail.
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
DE: 1600 GLOBAL CHANGE (New category)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting