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An atmospheric-hydrological modelling system for flash flood forecasting
Charles LIN
Department of Atmospheric and Oceanic Sciences, and Centre for Climate and Global Change Research, McGill University - Centre de recherche en calcul appliqué, Montréal
We describe a 3-dimensional numerical modelling system that consists of an atmospheric and a hydrological component for the forecast of severe precipitation and flash floods. The emphasis is on “when, where and how much” water can be expected from a storm and subsequent flooding. The two model components are coupled in that the hydrological land surface component is driven by atmospheric variables, and returns heat fluxes to the atmosphere, thus completing the two-way feedback between the atmosphere and land surface. At the same time, runoff is generated with a routing module. The modeling system is applied to the Ha! Ha! River Basin during the Saguenay flood that occurred in Quebec in July 1996.
Date: 2003-09-11 à 05:30
Endroit: Pavillon Adrien-Pouliot, local 2704 N.B. Présentation en français