The method to restore the profiles  of  the atmospheric turbulence from solar observations

A. Yu. Shikhovtsev; P. G. Kovadlo; A. V. Kiselev

doi:10.1117/12.2540073

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18 December 2019 The method to restore the profiles of the atmospheric turbulence from solar observations

A. Yu. Shikhovtsev, P. G. Kovadlo, A. V. Kiselev

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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112081E (2019) https://doi.org/10.1117/12.2540073
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

To restore the height profiles of the atmospheric turbulence we used the analysis of the spatial crosscorrelation functions of wavefront distortions registered by the Shack-Hartmann sensor of the adaptive optics (AO) system of Large solar vacuum telescope. In the paper the results of analysis of spatial crosscorrelation function within the field of view ~35 arcsec are discussed. It is shown that the wavefront distortions formed within the field of view ~35 arcsec are not random. There are the repetitive hills of spatial crosscorrelation functions in the field of view at the same intervals for different space subapertures. It is shown that spatial crosscorrelation functions do not contain pronounced kernel for finding the exact position of the atmospheric layer contributing to significant distortions in the wavefront incident on the telescope aperture.

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A. Yu. Shikhovtsev, P. G. Kovadlo, and A. V. Kiselev "The method to restore the profiles of the atmospheric turbulence from solar observations", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112081E (18 December 2019); https://doi.org/10.1117/12.2540073

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