Modelling in the Coquimbo Region
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Modelling in the Coquimbo Modelling in the Coquimbo RegionRegion
Melitta Fiebig WittmaackMelitta Fiebig Wittmaack++
Inge Bischoff-Gauss (IWR/FZK)Inge Bischoff-Gauss (IWR/FZK)++
Orlando AstudilloOrlando Astudillo
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¿What is KAMM?
• Karlsruhe Mesoscale Atmospheric Model (Adrian and Fiedler .)
• non- hydrostatic
• complex topography (terrain following coordinate system)
• chemical module coupling, aerosol module coupling, etc.
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Datos de entrada requeridos:
+ vertical soundings of wind, temperature and humidity
Input:
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Output:
3D distributions of
wind temperature humidity
concentrations of chemical species
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First step: the larger flow-field with coarse discretization (Kalthoff et al. 2002)
t < 2 sec, x = 4.7 km H = 15 km
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Second step: smaller simulation area with finer discretization and 1 nesting
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a: Δx = 1461 m, Δy = 1788 m
i: Δx = 730.5 m, Δy = 894 m
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Third step: The influence of the Embalse Puclaro on the local climate; 3 nestings and finest discretization (with Inge Bischoff-Gauß, IWR)
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Simulated potential temperature rel. humidity on a summer day
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March 2000, Dec. 2001, Nov. 2003 Radiosoundings at La Serena, Vicuña and Cerro Tololo
December 2001 Turbul. measurements at Cerro Tololo
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