HR: 10:20h
AN: A31G-01    [PDF]
TI: Evidence of the Effect of Summertime Midlatitude Convection on the Subtropical Lower Stratosphere: An Analysis of Tracer Measurements From the CRYSTAL-FACE Mission
AU: * Ray, E
EM: eray@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: * Ray, E
EM: eray@al.noaa.gov
AF: CIRES, University of Colorado, 216 UCB, Boulder, CO 80309 United States
AU: Rosenlof, K
EM: krosenlof@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: Richard, E
EM: erichard@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: Richard, E
EM: erichard@al.noaa.gov
AF: CIRES, University of Colorado, 216 UCB, Boulder, CO 80309 United States
AU: Murphy, D
EM: murphy@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: Cziczo, D
EM: dcziczo@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: Cziczo, D
EM: dcziczo@al.noaa.gov
AF: CIRES, University of Colorado, 216 UCB, Boulder, CO 80309 United States
AU: Hudson, P
EM: phudson@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305 United States
AU: Hudson, P
EM: phudson@al.noaa.gov
AF: CIRES, University of Colorado, 216 UCB, Boulder, CO 80309 United States
AU: Wofsy, S
EM: scw@io.harvard.edu
AF: Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
AU: Andrews, A
EM: andrews@hyperion.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Mail Stop 916.0, Greenbelt, MD 20771 United States
AU: Daube, B
EM: bcd@io.harvard.edu
AF: Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
AU: Gerbig, C
EM: cgb@io.harvard.edu
AF: Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
AU: Xueref, I
EM: ixf@io.harvard.edu
AF: Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
AU: Lowenstein, M
EM: max@ames.nasa.gov
AF: NASA Ames Research Center, Moffett Field, San Jose, CA 94035 United States
AU: Jost, H
EM: hansjurg@ames.nasa.gov
AF: NASA Ames Research Center, Moffett Field, San Jose, CA 94035 United States
AU: Lopez, J
EM: jlopez@ames.nasa.gov
AF: NASA Ames Research Center, Moffett Field, San Jose, CA 94035 United States
AU: Ridley, B
EM: ridley@ncar.edu
AF: National Center for Atmospheric Research, 1850 Table Mesa Dr., Boulder, CO 80307 United States
AU: Weinheimer, A
EM: weinheimer@ncar.edu
AF: National Center for Atmospheric Research, 1850 Table Mesa Dr., Boulder, CO 80307 United States
AU: Montzka, D
EM: dmontzka@ncar.edu
AF: National Center for Atmospheric Research, 1850 Table Mesa Dr., Boulder, CO 80307 United States
AU: Herman, R
EM: Robert.Herman@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA 91109 United States
AB: Correlations of long-lived trace gases measured during the CRYSTAL-FACE mission are used to examine mixing in the summer subtropical lower stratosphere. A large number of particles produced by biomass burning were measured in the lower stratosphere up to potential temperatures of 390 K. The particle measurements, combined with the large scale circulation, suggests recent injection of midlatitude tropospheric air into the lower stratosphere. Fractions of midlatitude tropospheric air in the lower stratosphere are calculated based on consistency between all of the tracer-tracer correlations. The tropospheric endpoints to the mixing estimates give an indication of midlatitude continental convective input into the lower stratosphere. Radiative heating rates in the summer subtropical stratosphere above roughly 360 K are positive which suggests that this region will rise and thus, the midlatitude convective input will have an effect on the composition of the stratosphere as a whole.
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting