HR: 1340h
AN: A33D-0094    [Abstracts]
TI: First Tropospheric Water Vapor Measurements at the JPL Table Mountain Facility in Support of AURA Validation
AU: * Leblanc, T
EM: leblanc@tmf.jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, Table Mountain Observatory P.O. Box 367, Wrightwood, CA 92397
AU: McDermid, S I
EM: mcdermid@tmf.jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, Table Mountain Observatory P.O. Box 367, Wrightwood, CA 92397
AB: In support for the validation of AURA's water vapor satellite measurements, a new water vapor Raman lidar is being implemented at the Table Mountain Facility (TMF) of the Jet Propulsion Laboratory (JPL) in California. The lidar measurements are complemented with simultaneous, co-located, radiosonde measurements. The lidar system was designed to reach accuracies better than 5% anywhere up to 12 km altitude, and with the capability to measure water vapor mixing ratios as low as 1 ppm near the tropopause and in the lower stratosphere. The system high capabilities, and actual performance were demonstrated from preliminary measurements in 2003. Using the experience of these measurements, the system was dismantled, and then re-built in a fully optimized configuration. Simultaneous lidar and radiosonde measurements will take place on a routine basis (4 to 5 nights per week) starting this fall. More intense measurement periods are planned in connection with TES, MLS and HIRDLS coincident measurements onboard AURA. The first results from these remote ground-based and in-situ measurements will be shown, as well as comparisons with the satellite measurements.
DE: 3362 Stratosphere/troposphere interactions
DE: 1640 Remote sensing
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0365 Troposphere--composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting