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Proceedings Paper

Low-elevation transmission measurements at EOPACE I. Molecular and aerosol effects
Author(s): Carl R. Zeisse; Stuart G. Gathman; Douglas R. Jensen; Kathleen M. Littfin; William K. Moision; Kenneth L. Davidson; Paul A. Frederickson; Arie N. de Jong; Peter J. Fritz; Gerrit de Leeuw; J. Luc Forand; Denis Dion
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Paper Abstract

An analysis is presented showing the effects of molecules and aerosols on atmospheric transmission data obtained during the Electro-Optical Propagation Assessment in Coastal Environments (EOPACE) campaign carried out in San Diego during March and April, 1996. Mid wave infrared transmission was measured over San Diego Bay along a 14.9 km path and a 7.0 km path at heights less than 4 meters above the water. Simultaneous meteorological measurements were obtained from two buoys placed at the mid-points of each path. An aerosol spectrometer was used to measure the aerosol size distribution over each transmission path. Data were analyzed with MODTRAN and Mie theory. The conclusion of this and the next two papers is that low altitude infrared transmission is a complex phenomenon whose mean value may be controlled either by molecular absorption, aerosol scattering, or refractive focusing, and whose fluctuating value is controlled by scintillation.

Paper Details

Date Published: 23 September 1997
PDF: 14 pages
Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); doi: 10.1117/12.279018
Show Author Affiliations
Carl R. Zeisse, Naval Command, Control and Ocean Surveillance Ctr. (United States)
Stuart G. Gathman, Naval Command, Control and Ocean Surveillance Ctr. (United States)
Douglas R. Jensen, Naval Command, Control and Ocean Surveillance Ctr. (United States)
Kathleen M. Littfin, Naval Command, Control and Ocean Surveillance Ctr. (United States)
William K. Moision, Naval Command, Control and Ocean Surveillance Ctr. (United States)
Kenneth L. Davidson, Naval Postgraduate School (United States)
Paul A. Frederickson, Naval Postgraduate School (United States)
Arie N. de Jong, TNO Physics and Electronics Lab. (Netherlands)
Peter J. Fritz, TNO Physics and Electronics Lab. (Netherlands)
Gerrit de Leeuw, TNO Physics and Electronics Lab. (Netherlands)
J. Luc Forand, Defence Research Establishment Valcartier (Canada)
Denis Dion, Defence Research Establishment Valcartier (Canada)


Published in SPIE Proceedings Vol. 3125:
Propagation and Imaging through the Atmosphere
Luc R. Bissonnette; Christopher Dainty, Editor(s)

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