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  4. The dependence of optical turbulence on thermal and mechanical forces over the sea
 
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2016
Conference Paper
Title

The dependence of optical turbulence on thermal and mechanical forces over the sea

Abstract
Optical turbulence for over-water conditions was investigated in a long-term experiment over False Bay near Cape Town, South Africa. A sonic anemometer and two boundary-layer scintillometers were deployed to access in-situ turbulence as well as the integrated turbulence over two 1.8 and 8.7 km paths. Statistical analysis reveals spatial temporal variations of the turbulence conditions over False Bay, which might be related to differences in the atmospheric conditions and/or the surface (water) temperatures. An analysis in terms of mechanical and thermal forcing reveals that the latter factor is more dominant in determining the turbulence strength.
Author(s)
Eijk, Alexander M. van
Sprung, Detlev  
Sucher, Erik  
Eisele, Christian  
Seiffer, Dirk  
Stein, Karin  
Mainwork
Laser Communication and Propagation through the Atmosphere and Oceans V  
Conference
Conference "Laser Communication and Propagation through the Atmosphere and Oceans" 2016  
DOI
10.1117/12.2239324
Language
English
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Keyword(s)
  • turbulence

  • maritime environment

  • experiment

  • sonic anemometer

  • scintillometer

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