Combining turbulence profiles from MASS and SLODAR: a statistical study of the evolution of the seeing at Paranal

G. Lombardi; J. Navarrete; M. Sarazin

doi:10.1117/12.788090

10 July 2008 Combining turbulence profiles from MASS and SLODAR: a statistical study of the evolution of the seeing at Paranal

G. Lombardi, J. Navarrete, M. Sarazin

Author Affiliations +

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 701221 (2008) https://doi.org/10.1117/12.788090
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We have recombined turbulence profiles from MASS and SLODAR at Paranal Observatory using a new grid of atmospheric layers defined on the basis of the comparison between the MASS and SLODAR weighting functions. A statistical analysis of the relation between the total Paranal DIMM C_n², the ground layer C_n² and the free atmosphere C_n² is presented. Taking into account the height of the VLT Unit Telescopes we have recalculated the seeing skipping the atmosphere below that height, obtaining an estimation of the real turbulence affecting science at the Very Large Telescope and its evolution from January 2005 to June 2007.

Citation Download Citation

G. Lombardi, J. Navarrete, and M. Sarazin "Combining turbulence profiles from MASS and SLODAR: a statistical study of the evolution of the seeing at Paranal", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701221 (10 July 2008); https://doi.org/10.1117/12.788090

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