HR: 08:15h
AN: H31I-02    [Abstracts]
TI: Annual variability of Tropospheric Water Vapour Isotopes as observed by TES
AU: * Worden, J
EM: john.worden@jpl.nasa.gov
AF: JPL / Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109,
AU: Noone, D
EM: dcn@colorado.edu
AF: CIRES / University of Colorado, UCB 311, Boulder, CO 80309,
AU: Brown, D
EM: Derek.Brown@Colorado.EDU
AF: CIRES / University of Colorado, UCB 311, Boulder, CO 80309,
AU: Bowman, K
EM: kevin.bowman@jpl.nasa.gov
AF: JPL / Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109,
AB: We present an overview of three years of tropical tropospheric measurements of HDO and H2O from the Tropospheric Emission Spectrometer aboard the Aura satellite. The TES water vapour isotope data set spans September 2004 through the present. Uncertainties in the tropical measurements are approximately 12 parts per thousand relative to SMOW for the free troposphere. This uncertainty allows for quantification of yearly and seasonal variations in the HDO/H2O ratio and how these variations depend on the balance between the evaporative supply of water, atmospheric transport patterns and condensation processes.
DE: 1818 Evapotranspiration
DE: 1843 Land/atmosphere interactions (1218, 1631, 3322)
DE: 1854 Precipitation (3354)
SC: Hydrology [H]
MN: 2007 Fall Meeting