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Site characterisation: Astronomical seeing from a turbulence-resolving model

Explore site characterization and astronomical seeing parameters using LESNIC simulation code at the 7th Inkaba yeAfrica Workshop in GFZ Potsdam, Germany. Learn about Navier-Stokes equations, turbulence modeling, and large eddies characterization.

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Site characterisation: Astronomical seeing from a turbulence-resolving model

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  1. 7th Inkaba yeAfrica Workshop GFZ Potsdam, Germany 1 – 5 November 2010 Site characterisation:Astronomical seeing from a turbulence-resolving model M. Nickola1,2, R.C. Botha1, I. Esau3, G.D. Djolov2 and W.L. Combrinck1 Hartebeesthoek Radio Astronomy Observatory (HartRAO) University of Pretoria (UP), Department of Geography, Geoinformatics and Meteorology Nansen Environmental and Remote Sensing Center (NERSC) Corresponding Author: M. Nickola marisa@hartrao.ac.za

  2. Navier-Stokes equations, boundary conditions resolved large eddies LESNIC simulation code parametrised, universal subgrid-scale model found small eddies filtered SBL (night), homogeneous rough surface potential temperature, wind velocity DATABASE64 LESNICruns Atmospheric turbulence Credit: Claire E. Max, UCSC Stull (1988) 7th Inkaba yeAfrica Workshop - GFZ Potsdam, Germany

  3. profile Photo: Guilluame Dargau Z [m] Aristidi et al. 2009 [10-13 m-2/3] [10-13m-2/3] 1 – 5 November 2010 7th Inkaba yeAfrica Workshop - GFZ Potsdam, Germany 3

  4. Astronomical seeing parameters Observation Simulation At 8 m above ground: = 5 cm At 33 m above ground: = 2.1” 1 – 5 November 2010 7th Inkaba yeAfrica Workshop - GFZ Potsdam, Germany 4

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