Modelling and prediction of non-stationary optical turbulence behaviour

Niek Doelman; James Osborn

doi:10.1117/12.2233351

26 July 2016 Modelling and prediction of non-stationary optical turbulence behaviour

Niek Doelman, James Osborn

Proceedings Volume 9909, Adaptive Optics Systems V; 99091M (2016) https://doi.org/10.1117/12.2233351
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

There is a strong need to model the temporal fluctuations in turbulence parameters, for instance for scheduling, simulation and prediction purposes. This paper aims at modelling the dynamic behaviour of the turbulence coherence length r₀, utilising measurement data from the Stereo-SCIDAR instrument installed at the Isaac Newton Telescope at La Palma. Based on an estimate of the power spectral density function, a low order stochastic model to capture the temporal variability of r₀ is proposed. The impact of this type of stochastic model on the prediction of the coherence length behaviour is shown.

Citation Download Citation

Niek Doelman and James Osborn "Modelling and prediction of non-stationary optical turbulence behaviour", Proc. SPIE 9909, Adaptive Optics Systems V, 99091M (26 July 2016); https://doi.org/10.1117/12.2233351

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