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12 January 2005 Wide-Angle Imaging Lidar (WAIL): theory of operation, cross-platform validation, and potential applications
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Abstract
The Wide-Angle Imaging Lidar (WAIL), a new instrument that measures cloud optical and geometrical properties by means of off-beam lidar returns, was deployed as part of a multi-instrument campaign to probe a cloud field at ARM (Atmospheric Radiation Measurement) Southern Great Plain (SGP) site on March 25, 2002. WAIL is designed to determine physical and geometrical characteristics using the off-beam component of the lidar return that can be adequately modeled within the diffusion approximation. Using WAIL data, we estimate the extinction coefficient and geometrical thickness of a dense cloud layer; from there, we infer optical thickness. Results from the new methodology agree well with counterparts obtained from other instruments located permanently at the SGP ARM site and from the WAIL-like airborne instrument that flew over the site during our observation period.
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Igor N. Polonsky, Anthony B. Davis, and Steven P. Love "Wide-Angle Imaging Lidar (WAIL): theory of operation, cross-platform validation, and potential applications", Proc. SPIE 5653, Lidar Remote Sensing for Industry and Environmental Monitoring V, (12 January 2005); https://doi.org/10.1117/12.581343
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