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Appl Opt. 2004 Jul 10;43(20):4070-9.

Atmospheric optical turbulence over land in middle east coastal environments: prediction modeling and measurements.

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  • 1Ben Gurion University of the Negev, P.O.B. 653, Beer Sheva 84105, Israel.

Abstract

Beam intensity scintillations, characterized by a refractive-index structure parameter and caused by variations of macrometeorological features of the coastal atmosphere such as air temperature, wind speed and direction, and relative humidity, are examined theoretically and experimentally. In our theoretical analysis we present two well-known models considered separately for over-water and over-land atmospheric optical communication or imaging channels. By means of comparison with our experiments carried out in midland coastal environments in southern and northern Israel, we show the limitations of the models to predict the refractive-index structure Cn2 parameter for both daytime and nighttime turbulent atmospheres in different coastal zone meteorological conditions. We also present an extension of an existing model with two different practical applications that, as is shown experimentally, can be a good predictor of Cn2 for optical atmospheric paths over midland coastal zones.

PMID:
15285098
[PubMed]
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