Variational data assimilation of lagrangian data for fluvial hydraulics simulations.
Marc Honnorat, François-Xavier Le Dimet, Jérôme Monnier & Marc Honnorat
A major difficulty in the simulation of river hydraulics flows is bound to model
parameters definition. Solutions of the shallow water equations are determined by
initial conditions, boundary conditions, bed elevation, physical and numerical
parameters. Data assimilation methods make it possible to combine optimally physical
information from the model and observation data of the physical system to identify
the value of model inputs that correspond to a numerical simulation which is
consistent with reality.
Variational...
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