HR: 15:00h
AN: A43D-06    [Abstracts]
TI: Lower Stratospheric Trends from a Comparison of ATMOS and ACE Measurements near 30\deg N Latitude
AU: * Rinsland, C P
EM: c.p.rinsland@larc.nasa.gov
AF: NASA Langley Research Center, Mail Stop 401A, Hampton, VA 23681 United States
AU: Bernath, P
EM: bernath@uwaterloo.ca
AF: University of Waterloo, Department of Chemistry, Waterloo, ON N2L 3G1 Canada
AU: Nassar, R
EM: rnassar@acebox.uwaterloo.ca
AF: University of Waterloo, Department of Chemistry, Waterloo, ON N2L 3G1 Canada
AU: Boone, C
EM: cboone@acebox.uwaterloo.ca
AF: University of Waterloo, Department of Chemistry, Waterloo, ON N2L 3G1 Canada
AU: Walker, K
EM: kwalker@acebox.uwaterloo.ca
AF: University of Waterloo, Department of Chemistry, Waterloo, ON N2L 3G1 Canada
AU: Chiou, L
EM: l.s.chiou@larc.nasa.gov
AF: Science Applications International Corporation, 22 Enterprise Parkway Suite 200, Hampton, VA 23666 United States
AB: Long-term trends in the lower stratosphere have been derived from a comparison of volume mixing ratios measured from the solar occultation spectra recorded by the Atmospheric Chemistry Experiment (ACE) and a comparison of those results with measurements from the Atmospheric Trace MOlecule Spectroscopy Experiment (ATMOS) during Shuttle flights in May 1985 (Spacelab 3) and November 1994 (ATLAS 3). Trends are inferred from a comparisons at northern midlatitudes where sampling overlap occurs. Measured mixing ratios are referenced to those for N$_{2}$O, a conserved long-lived tracer to remove the contribution from atmospheric dynamics to the measured variations of the target molecules. Results are also compared with trends reported from other measurements and model predictions.
DE: 1640 Remote sensing
DE: 0325 Evolution of the atmosphere
DE: 0340 Middle atmosphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting