HR: 13:55h
AN: A12D-02    [PDF]
TI: An examination of the spatial relationship between the water minimum and convection in the TTL
AU: * Dessler, A
EM: adessler@umd.edu
AF: University of Maryland, ESSIC/2207 Computer and Space Sci Bldg, College Park, MD 20742 United States
AB: Recently, it has been argued that the region where water vapor is a minimum in the tropical tropopause layer is located downstream of convection. If true, this would suggest that in situ dehydration was playing a role in regulating water vapor near the tropical tropopause. In this presentation, I will use UARS MLS water vapor measurements, as well as various proxies for convection, to argue that the water vapor minimum is closely collocated with convection. I will also provide potential explanations as to why previous analyses have reached a different conclusion.
DE: 0320 Cloud physics and chemistry
DE: 0322 Constituent sources and sinks
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting