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Characterization of optical turbulence at the solar observatory at the Mount Teide, Tenerife

: Sprung, Detlev; Sucher, Erik

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Copyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Created on: 5.11.2013

Stein, K.; Gonglewski, John D. (Ed.) ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Remote Sensing of Clouds and the Atmosphere XVIII and Optics in Atmospheric Propagation and Adaptive Systems XVI : Dresden, Germany, September 23, 2013
Bellingham, WA: SPIE, 2013 (Proceedings of SPIE 8890)
ISBN: 978-0-8194-9759-8
Paper 889015
Conference "Remote Sensing of Clouds and the Atmosphere" <18, 2013, Dresden>
Conference "Optics in Atmospheric Propagation and Adaptive Systems" <16, 2013, Dresden>
Conference Paper, Electronic Publication
Fraunhofer IOSB ()
scintillometry; optical turbulence; turbulence at astronomical telescopes

Optical turbulence represented by the structure function parameter of the refractive index Cn2 is regarded as one of the chief causes of image degradation of ground-based astronomical telescopes operating in visible or infrared wavebands. Especially, it affects the attainable spatial resolution. Therefore since the middle of September 2012 the optical turbulence has been monitored between two German solar telescopes at the Observatory in Tenerife /Canary Islands /Spain. It comprises the solar telescope GREGOR and the vacuum tower telescope VTT mounted on two 30 m high towers. Between the two towers at the level of the telescopes, Cn2 was measured using a Laser-Scintillometer SLS40 (Scintec, Rottenburg, Germany). The horizontal distance of the measurement path was 75 m. The first results of the measurements starting from the 15th September 2012 up to the end of December 2012 are presented and analyzed using simultaneous measured meteorological data of wind, temperature and humidity. Daily and seasonal variations are shown and discussed.