Relative infrared transmission measurements of EOPACE

Brett D. Nener

doi:10.1117/12.279032

23 September 1997 Relative infrared transmission measurements of EOPACE

Brett D. Nener

Proceedings Volume 3125, Propagation and Imaging through the Atmosphere; (1997) https://doi.org/10.1117/12.279032
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Transmission measurements were taken through the atmosphere over surf at Scripps Institute of Oceanography Pier, La Jolla, USA, during January and February 1996, as a part of a trial of the Electro-optic Propagation Assessment in Coastal Environments (EOPACE) campaign. Simultaneous measurements in the 3-5um and 8- l2um infra-red bands were taken using a Mercury-Cadmium-Telluride (MCT) and Indium Antimonide (InSb) sandwiched detector. The transmissometer was designed so that the image of the source at the receiver is many times the detector size. In this way, the effect of beam wander and detector non-uniformity are negligible. Measurements are relative in the sense that there was no attempt to calibrate transmission to a refened-standard source like a black-body or to use transmission codes. Meteorological and aerosol data were also collected over the path. It was found that the coastal environment does significantly influence the transmission of infrared radiation even over a path as short as a few hundred metres.

Citation Download Citation

Brett D. Nener "Relative infrared transmission measurements of EOPACE", Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); https://doi.org/10.1117/12.279032

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