New Raman water vapor and temperature lidar at JPL table mountain facility: Optimization, validations and sonde intercomparison

R. A. Aspey*, I. S. McDermid, T. Leblanc, D. Walsh, J. Howe

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationLidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing II
Volume6367
DOIs
StatePublished - 2006
Externally publishedYes
EventLidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensings II - Stockholm, Sweden
Duration: Sep 13 2006Sep 14 2006

Other

OtherLidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensings II
CountrySweden
CityStockholm
Period09/13/0609/14/06

Keywords

  • Lidar
  • Raman
  • Troposphere
  • Water vapor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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