
Proceedings Paper
Dew, dust, and wind influencing thermal signatures of objectsFormat | Member Price | Non-Member Price |
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Paper Abstract
Dew and dust layers on the surface of an object may significantly affect its thermal state and IR signature. Dew formation
begins when the object surface temperature falls below atmospheric dew point temperature. Due to the latent heat
released by the water accumulated on the surface the temperature drop stagnates and the object appears warmer then it
would be without dew formation. An attempt was made to modify RadThermIR software to account for dew effects. A
simple plate model and the more elaborate CUBI thermal modeling benchmarking object were used to study the extent to
which dew may change thermal object signatures. A dust layer on an object surface may affect its optical properties and
may act as additional thermal insulation when it is thick enough. Both effects influence the temperature and IR signature
of the object. Parametric calculations by RadThermIR were performed for various dust thicknesses and optical properties.
This data was used in an object/background contrast analysis. The obtained dust/dew layer results will be used in the
planning of the next CUBI experiment in natural desert environments. In addition, CUBI data from another geographic
location was used for studying different wind models resulting in some interesting conclusions concerning the applicability
of the wind model used in RadThermIR.
Paper Details
Date Published: 15 April 2008
PDF: 10 pages
Proc. SPIE 6941, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX, 69410U (15 April 2008); doi: 10.1117/12.781548
Published in SPIE Proceedings Vol. 6941:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX
Gerald C. Holst, Editor(s)
PDF: 10 pages
Proc. SPIE 6941, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX, 69410U (15 April 2008); doi: 10.1117/12.781548
Show Author Affiliations
Arcady Reinov, IARD--Institute for Advanced Research and Development (Israel)
Yossi Bushlin, IARD--Institute for Advanced Research and Development (Israel)
Yossi Bushlin, IARD--Institute for Advanced Research and Development (Israel)
Alex Lessin, IARD--Institute for Advanced Research and Development (Israel)
Dieter Clement, FGAN-FOM--Research Institute for Optronics and Pattern Recognition (Germany)
Dieter Clement, FGAN-FOM--Research Institute for Optronics and Pattern Recognition (Germany)
Published in SPIE Proceedings Vol. 6941:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX
Gerald C. Holst, Editor(s)
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