Mesoscale Flow And Tracer Dispersion In Complex
Terrain

P. Salin; P. Grossi and G. Graziani

doi:10.2495/AIR970221

Mesoscale Flow And Tracer Dispersion In Complex Terrain

Price

Free (open access)

Transaction

WIT Transactions on Ecology and the Environment

Volume

Pages

Published

1997

Size

1,290 kb

Paper DOI

10.2495/AIR970221

WIT Press

Author(s)

P. Salin, P. Grossi and G. Graziani

Abstract

In the alpine region, tracer experiments were conducted in the past to simulate the air masses transport in mountainous regions. For one of these experiments (TRANSALP 1990), the model RAMS is used to calculate the flow, in its non- hydrostatic configuration, due to the highly complex terrain. RAMS was initialised with a vertical profile from the campaign and a multiple nested grid configuration was selected to solve both local flow and large scale circulation over the area. Two turbulence closure schemes are employed in the model and their effect on the circulation are analysed. The time-dependent RAMS fields are used to drive the Lagrangian particle model MONTECARLO. The effect on the dispersion of the turbulence parametrizations and boundary layer depth representations is investigated. Both meteorologica

Keywords

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Code

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