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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 19 — Jul. 1, 2013
  • pp: 4446–4461

Airborne measurements of CO2 column absorption and range using a pulsed direct-detection integrated path differential absorption lidar

James B. Abshire, Haris Riris, Clark J. Weaver, Jianping Mao, Graham R. Allan, William E. Hasselbrack, and Edward V. Browell  »View Author Affiliations


Applied Optics, Vol. 52, Issue 19, pp. 4446-4461 (2013)
http://dx.doi.org/10.1364/AO.52.004446


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Abstract

We report on airborne CO2 column absorption measurements made in 2009 with a pulsed direct-detection lidar operating at 1572.33 nm and utilizing the integrated path differential absorption technique. We demonstrated these at different altitudes from an aircraft in July and August in flights over four locations in the central and eastern United States. The results show clear CO2 line shape and absorption signals, which follow the expected changes with aircraft altitude from 3 to 13 km. The lidar measurement statistics were also calculated for each flight as a function of altitude. The optical depth varied nearly linearly with altitude, consistent with calculations based on atmospheric models. The scatter in the optical depth measurements varied with aircraft altitude as expected, and the median measurement precisions for the column varied from 0.9 to 1.2 ppm. The altitude range with the lowest scatter was 8–10 km, and the majority of measurements for the column within it had precisions between 0.2 and 0.9 ppm.

© 2013 USG

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(140.3510) Lasers and laser optics : Lasers, fiber
(280.3640) Remote sensing and sensors : Lidar
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: January 31, 2013
Revised Manuscript: March 25, 2013
Manuscript Accepted: April 11, 2013
Published: June 21, 2013

Citation
James B. Abshire, Haris Riris, Clark J. Weaver, Jianping Mao, Graham R. Allan, William E. Hasselbrack, and Edward V. Browell, "Airborne measurements of CO2 column absorption and range using a pulsed direct-detection integrated path differential absorption lidar," Appl. Opt. 52, 4446-4461 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-19-4446

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