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Proceedings Paper

Detection and identification of toxic air pollutants using airborne LWIR hyperspectral imaging
Author(s): David J. Williams; Barry L. Feldman; Tim J. Williams; Drew Pilant; Paul G. Lucey; L. Dorsey Worthy
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Paper Abstract

Airborne longwave infrared (LWIR) hyperspectral imagery was utilized to detect and identify gaseous chemical release plumes at sites in southern Texas. The Airborne Hyperspectral Imager (AHI), developed by the University of Hawai’i, was flown over a petrochemical facility and a confined animal feeding operation on a modified DC-3 during April, 2004. Data collected by the AHI system was successfully used to detect and identify numerous plumes at both sites. Preliminary results indicate the presence of benzene and ammonia and several other organic compounds. Emissions were identified using regression analysis on atmospherically compensated data. Data validation was conducted using facility emission inventories. This technology has great promise for monitoring and inventorying facility emissions, and may be used as means to assist ground inspection teams to focus on actual fugitive emission points.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5655, Multispectral and Hyperspectral Remote Sensing Instruments and Applications II, (20 January 2005); doi: 10.1117/12.578819
Show Author Affiliations
David J. Williams, U.S. Environmental Protection Agency (United States)
Barry L. Feldman, U.S. Environmental Protection Agency (United States)
Tim J. Williams, Univ. of Hawaii/Manoa (United States)
Drew Pilant, U.S. Environmental Protection Agency (United States)
Paul G. Lucey, Univ. of Hawaii/Manoa (United States)
L. Dorsey Worthy, U.S. Environmental Protection Agency (United States)


Published in SPIE Proceedings Vol. 5655:
Multispectral and Hyperspectral Remote Sensing Instruments and Applications II
Allen M. Larar; Makoto Suzuki; Qingxi Tong, Editor(s)

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