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Proceedings Paper

Compact ground-based UV DIAL system for measurements of tropospheric ozone
Author(s): J. Thomas Zenker; Thomas H. Chyba; Christophe L. McCray; Hyung R. Lee; Roosevelt Elivert; Brandi Thomas; Crystal Toppin; Dave Larson; N. Scott Higdon; Dale A. Richter; Jack Fishman
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Paper Abstract

The development of a portable, eye-safe, ground-based ozone lidar instrument specialized for ozone differential absorption lidar (DIAL) measurements in the troposphere is presented. This compact prototype instrument is intended to operate at remote field sites and to serve as the basic unit for future monitoring projects requiring multi-instrument networks. In order for the lidar technology to be widely deployed in networks, it must be fairly easy to use and maintain as well as being cost-competitive with a ground station launching ozone sondes several times a week. The chosen laser transmitter for the system is an all-solid state tunable frequency-doubled OPO which produces 25 mJ uv pulses. Progress with alternative solid-state uv laser sources based upon an IR-pumped OPO and based upon stimulated Raman scattering in barium nitrate will be discussed. The receiver incorporates highly efficient dielectric coatings, a parabolic primary and a narrow- bandpass grating-based filter. Dual analog and photon-counting detector channels are incorporated to extend the measurement range. All data acquisition and control hardware is incorporated in an industrial PC-based system. A flexible, user-friendly graphical user interface is written in LabVIEW for data acquisition and online processing and display.

Paper Details

Date Published: 28 May 1999
PDF: 8 pages
Proc. SPIE 3707, Laser Radar Technology and Applications IV, (28 May 1999); doi: 10.1117/12.351374
Show Author Affiliations
J. Thomas Zenker, Hampton Univ. (United States)
Thomas H. Chyba, Hampton Univ. (United States)
Christophe L. McCray, Hampton Univ. (United States)
Hyung R. Lee, Hampton Univ. (United States)
Roosevelt Elivert, Hampton Univ. (United States)
Brandi Thomas, Hampton Univ. (United States)
Crystal Toppin, Hampton Univ. (United States)
Dave Larson, Hampton Univ. (United States)
N. Scott Higdon, ITT Systems and Science Corp. (United States)
Dale A. Richter, ITT Systems and Science Corp. (United States)
Jack Fishman, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 3707:
Laser Radar Technology and Applications IV
Gary W. Kamerman; Christian Werner, Editor(s)

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