Chemical detection using the airborne thermal infrared imaging spectrometer (TIRIS)

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A methodology is described for an airborne, downlooking, longwave infrared imaging spectrometer based technique for the detection and tracking of plumes of toxic gases. Plumes can be observed in emission or absorption, depending on the thermal contrast between the vapor and the background terrain. While the sensor is currently undergoing laboratory calibration and characterization, a radiative exchange phenomenology model has been developed to predict sensor response and to facilitate the sensor design. An inverse problem model has also been developed to obtain plume parameters based on sensor measurements. These models, the sensors, and ongoing activities are described.

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10 p.

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Gat, N.; Subramanian, S.; Sheffield, M.; Erives, H. & Barhen, J. April 1, 1997.

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Description

A methodology is described for an airborne, downlooking, longwave infrared imaging spectrometer based technique for the detection and tracking of plumes of toxic gases. Plumes can be observed in emission or absorption, depending on the thermal contrast between the vapor and the background terrain. While the sensor is currently undergoing laboratory calibration and characterization, a radiative exchange phenomenology model has been developed to predict sensor response and to facilitate the sensor design. An inverse problem model has also been developed to obtain plume parameters based on sensor measurements. These models, the sensors, and ongoing activities are described.

Physical Description

10 p.

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OSTI as DE97005148

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  • SPIE international conference, Orlando, FL (United States), 21-25 Apr 1997

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  • Other: DE97005148
  • Report No.: CONF-970465--11
  • Office of Scientific & Technical Information Report Number: 466834
  • Archival Resource Key: ark:/67531/metadc686240

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • June 23, 2016, 11:51 a.m.

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Gat, N.; Subramanian, S.; Sheffield, M.; Erives, H. & Barhen, J. Chemical detection using the airborne thermal infrared imaging spectrometer (TIRIS), article, April 1, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc686240/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.