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First results on the experiment FESTER on optical turbulence over False Bay South Africa: Dependencies and consequences

: Sprung, Detlev; Eijk, Alexander M.J. van; Sucher, Erik; Eisele, Christian; Seiffer, Dirk; Stein, Karin


Stein, K.U. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Optics in Atmospheric Propagation and Adaptive Systems XIX : Edinburgh, United Kingdom, September 26, 2016
Bellingham, WA: SPIE, 2016 (Proceedings of SPIE 10002)
Paper 10002, 9 pp.
Conference "Optics in Atmospheric Propagation and Adaptive Systems" <19, 2016, Edinburgh>
Conference Paper
Fraunhofer IOSB ()
optical turbulence; maritime environment; experiment; sonic anemometer; scintillometer

The experiment FESTER (First European South African Transmission ExpeRiment) took place in 2015 to investigate the atmospheric influence on electro-optical systems performance across False Bay / South Africa on a long term basis. Several permanent stations for monitoring electro-optical propagation and atmospheric parameters were set up around the Bay. Additional intensive observation periods (IOPs) allowed for boat runs to assess the inhomogeneous atmospheric propagation conditions over water. In this paper we focus on the distribution of optical turbulence over the Bay. The different impact of water masses originating from the Indian Ocean and the Benguela current on the development of optical turbulence is discussed. The seasonal behavior of optical turbulence is presented and its effect on electro-optical system performance examined.