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Combining Cn2 models to simulate and forecast the optical turbulence in Armazones and Paranal
Author(s): O. Cuevas; M. Curé; P. Escárate
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Paper Abstract

To improve the modeling of seeing and its forecast over Armazones and Paranal, we applied two different C2n methods to estimate the vertical refractive index structure. One method, using temperature, pressure and turbulent kinetic energy (TKE), simulates the planetary boundary layer (PBL) C2n . The second method simulates in the free atmosphere, using temperature, pressure and vertical wind shear. The combination of both methods delivers the whole vertical structure of the C2n from ground level up to the stratosphere, and consequently we can derive the astronomical seeing. These atmospheric variables were calculated using WRF, configured in high temporal and spatial resolution. Our results show that the combination of these two methods gives improved results than when are used separately. We compared our simulations with measured data from MASS and DIMM instruments located at both sites.

Paper Details

Date Published: 6 July 2018
PDF: 10 pages
Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 1070055 (6 July 2018); doi: 10.1117/12.2312229
Show Author Affiliations
O. Cuevas, Univ. de Valparaíso (Chile)
M. Curé, Univ. de Valparaíso (Chile)
P. Escárate, Large Binocular Telescope Observatory (United States)
Univ. de Valparíso (Chile)


Published in SPIE Proceedings Vol. 10700:
Ground-based and Airborne Telescopes VII
Heather K. Marshall; Jason Spyromilio; Roberto Gilmozzi, Editor(s)

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