Mark J. Thomas
United States Environmental Protection Agency
22 Papers
111 Citations
Mark J. Thomas is an academic researcher from United States Environmental Protection Agency. The author has contributed to research in topics: Spectrometer & Fourier transform infrared spectroscopy. The author has an hindex of 6, co-authored 22 publications.
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Papers
Infrared detection and analysis of vapor plumes using an airborne sensor
Mark J. Thomas,Paul E. Lewis,Robert T. Kroutil,Roger J. Combs,Gary W. Small,Randall W. Zywicki,Dale L. Stageberg,Charles T. Chaffin,Timothy L. Marshall +8 more
- 01 Aug 2002
TL;DR: In this paper, an airborne infrared line-scanner and a Fourier transform infrared (FT-IR) spectrometer operating in the 3- 5micrometers and 8-12micrometer spectral regions provide a rapid wide area surveillance capability.
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Compound detection and concentration estimation by open-path Fourier Transform Infrared Spectrometry and canisters under controlled field conditions
TL;DR: In this article, the U.S. EPA/Region VII conducted a study intended to assess the qualitative and quantitative capabilities of three FTIR systems, arrayed along parallel, adjacent paths, which were 50 m downwind and perpendicular to the centerline of an artificially generated volatile organic compound (VOC) plume.
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A Method of Predicting Point and Path- Averaged Ambient Air VOC Concentrations, Using Meteorological Data
Ray E. Carter,Dennis D. Lane,Glen A. Marotz,Charles T. Chaffin,Tim L. Marshall,M. D. Tucker,Mark R. Witkowski,Robert M. Hammaker,William G. Fateley,Mark J. Thomas,Jody L. Hudson +10 more
TL;DR: In this paper, a method of predicting point and path-averaged ambient air VOC concentrations is described, which is based on the relationship between wind directional frequency and concentration, and is used for a plume generated from a single point source.
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Airborne mapping of chemical plumes in the aftermath of Hurricanes Katrina and Rita
Paul E. Lewis,Mark J. Thomas,Robert T. Kroutil,Roger J. Combs,Alan S. Cummings,Dave Miller,Tim Curry,Sylvia S. Shen +7 more
- 04 May 2006
TL;DR: In this paper, a mid-longwave infrared multispectral imager and a hyperspectral Fourier transform infrared spectrometer operating in a low-altitude aircraft were used to collect data from industrial facilities in the aftermath of hurricanes Katrina and Rita.
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