HR: 1330h
AN: A32B-0149    [PDF]
TI: Quantifying Stratospheric Ozone in the Upper Troposphere Using in Situ Measurements of HCl
AU: * Marcy, T P
EM: tmarcy@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: * Marcy, T P
EM: tmarcy@al.noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80305 United States
AU: Fahey, D W
EM: fahey@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Fahey, D W
EM: fahey@al.noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80305 United States
AU: Gao, R S
EM: gao@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Popp, P J
EM: ppopp@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Popp, P J
EM: ppopp@al.noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80305 United States
AU: Richard, E C
EM: erichard@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Richard, E C
EM: erichard@al.noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80305 United States
AU: Thompson, T L
EM: tthompson@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Rosenlof, K H
EM: krosenlof@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Ray, E A
EM: eray@al.noaa.gov
AF: Aeronomy Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, R/AL6, Boulder, CO 80305 United States
AU: Ray, E A
EM: eray@al.noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80305 United States
AU: Salawitch, R J
EM: rjs@caesar.jlp.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 United States
AU: Ridley, B A
EM: ridley@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307 United States
AU: Weinheimer, A J
EM: wein@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307 United States
AU: Loewenstein, M
EM: Max.Lowenstein-1@nasa.gov
AF: Ames Research Center, National Aeronautics and Space Administration, Moffett Field, CA 94035 United States
AU: Wilson, J C
EM: jwilson@du.edu
AF: Department of Engineering, University of Denver, Denver, CO 80208 United States
AU: Weinstock, E M
EM: weinstock@huarp.harvard.edu
AF: Atmospheric Research Project, Harvard University, Cambridge, MA 02138 United States
AU: Mahoney, M J
EM: michael.j.mahoney@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 United States
AB: A chemical ionization mass spectrometry (CIMS) technique has been developed for precise in situ measurements of hydrochloric acid (HCl). Aircraft measurements of HCl, ozone, and other gases were made in the summer of 2002 at subtropical latitudes in the upper troposphere and lower stratosphere. Significant abundances of HCl were found in many upper tropospheric air parcels as a result of stratosphere-to-troposphere transport. Minimum upper tropospheric HCl abundances are much lower than model mean estimates. Using the compact linear correlation of HCl with ozone in the lower stratosphere, the amount of stratospheric ozone in the upper troposphere can be uniquely distinguished from ozone that originated in the troposphere. This approach allows the processes affecting stratosphere to troposphere transport to be diagnosed in the atmosphere with greatly increased precision and accuracy.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting