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Proceedings Paper

New Raman water vapor and temperature lidar at JPL Table Mountain Facility: optimization, validations, and sonde intercomparison
Author(s): R. A. Aspey; I. S. McDermid; T. Leblanc; D. Walsh; J. Howe
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Paper Abstract

Jet Propulsion Laboratory currently operates lidar systems at Table Mountain Facility (TMF), California (34.4°N, 117.7°W at 2300m) and Mauna Loa Observatory (MLO), Hawaii (19.5°N, 155.6°W at 3400m) under the Network for the Detection of Atmospheric Composition Change (NDACC, formerly NDSC). To complement existing NDACC lidars at TMF, which acts as a primary site for inter-comparisons, a new water vapor and temperature lidar has begun routine operation with typically 3-4 nightly profiles per week. As water vapor is a key greenhouse gas, and is highly variable on annual and seasonal cycles, accurate long term measurements are necessary for predictions of climate change and to increase our understanding of the atmospheric processes it contributes to. The new TMF lidar has demonstrated high spatial and temporal resolution, with a high degree of optimization being achieved over the past year, although the authors believe further improvement may yet be possible. The lidar has been designed for accuracies of 5% up to 12km in the free troposphere with the capability to measure to the tropopause and lower stratosphere with accuracies of 1 ppm. It is anticipated that the data sets produced will be used for Aura validation and for incorporation into NDACC archives. Validation results for the optimized system are presented with intercomparisons using Vaisala RS92-K radiosondes.

Paper Details

Date Published: 3 October 2006
PDF: 10 pages
Proc. SPIE 6367, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing II, 63670A (3 October 2006); doi: 10.1117/12.687302
Show Author Affiliations
R. A. Aspey, Jet Propulsion Lab. (United States)
I. S. McDermid, Jet Propulsion Lab. (United States)
T. Leblanc, Jet Propulsion Lab. (United States)
D. Walsh, Jet Propulsion Lab. (United States)
J. Howe, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6367:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing II
Upendra N. Singh, Editor(s)

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