Marc Parlange: Land-atmosphere exchanges over complex terrain

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This talk will highlight two related areas of ongoing research.  The first addresses alpine hydrology and the interactions of the steep slopes on air flow and the impact on snow melt and runoff.  Both field studies in the Swiss Alps and some recent simulations of night time wind fields using large eddy simulation (LES) are presented. LES is then used to investigate the movement of plant pollen and the impact of large wind turbine installations on the local surface energy balance.  It is shown that the evaporation of water into the atmosphere could increase by some 10 to 15% depending on the turbine loading and raises some questions for water management in irrigated regions.

Marc Parlange, ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL).

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