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Proceedings Paper

A laser sounder for measuring atmospheric trace gases from space
Author(s): Haris Riris; James Abshire; Graham Allan; John Burris; Jeffrey Chen; Stephen Kawa; Jian-Ping Mao; Michael Krainak; Mark Stephen; Xiaoli Sun; Emily Wilson
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Paper Abstract

Mounting concern regarding global warming and the increasing carbon dioxide (CO2) concentration has stimulated interest in the feasibility of measuring CO2 mixing ratios from space. Precise satellite observations with adequate spatial and temporal resolution would substantially increase our knowledge of the atmospheric CO2distribution and allow improved modeling of the CO2 cycle. Current estimates indicate that a measurement precision of better than 1 part per million (1 ppm) will be needed in order to improve estimates of carbon uptake by land and ocean reservoirs. A 1-ppm CO2 measurement corresponds to approximately 1 in 380 or 0.26% long-term measurement precision. This requirement imposes stringent long-term precision (stability) requirements on the instrument In this paper we discuss methods and techniques to achieve the 1-ppm precision for a space-borne lidar.

Paper Details

Date Published: 17 October 2007
PDF: 8 pages
Proc. SPIE 6750, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing III, 67500U (17 October 2007); doi: 10.1117/12.737607
Show Author Affiliations
Haris Riris, NASA Goddard Space Flight Ctr. (United States)
James Abshire, NASA Goddard Space Flight Ctr. (United States)
Graham Allan, Sigma Space (United States)
John Burris, NASA Goddard Space Flight Ctr. (United States)
Jeffrey Chen, NASA Goddard Space Flight Ctr. (United States)
Stephen Kawa, NASA Goddard Space Flight Ctr. (United States)
Jian-Ping Mao, RS Information Systems, Inc. (United States)
Michael Krainak, NASA Goddard Space Flight Ctr. (United States)
Mark Stephen, NASA Goddard Space Flight Ctr. (United States)
Xiaoli Sun, NASA Goddard Space Flight Ctr. (United States)
Emily Wilson, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 6750:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing III
Upendra N. Singh; Gelsomina Pappalardo, Editor(s)

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