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www.hydrol-earth-syst-sci-discuss.net/4/363/2007/
doi:10.5194/hessd-4-363-2007
© Author(s) 2007. This work is licensed
under a Creative Commons License.
Sensitivity analysis and parameter estimation for the distributed modeling of infiltration excess overland flow
1LMC-IMAG UMR 5523 (CNRS,INPG,UJF,INRIA) Grenoble, France
2IMFT UMR 5502 (CNRS,INP,UPS) Toulouse, France
3LTHE UMR 5564 (CNRS, INPG, IRD, UJF) Grenoble, France
*now at: EC/JRC/IPSC Ispra, Italy
Abstract. The variational methods widely used for other environmental systems are applied to a spatially distributed flash flood model coupling kinematic wave overland flow and Green Ampt infiltration. Using an idealized configuration where only parametric uncertainty is addressed, the potential of this approach is illustrated for sensitivity analysis and parameter estimation. Adjoint sensitivity analysis provides an extensive insight into the relation between model parameters and the hydrological response and enables the use of efficient gradient based optimization techniques.
Discussion Paper (PDF, 1223 KB) Interactive Discussion (Closed, 4 Comments) Final Revised Paper (HESS)
Citation: Castaings, W., Dartus, D., Le Dimet, F.-X., and Saulnier, G.-M.: Sensitivity analysis and parameter estimation for the distributed modeling of infiltration excess overland flow, Hydrol. Earth Syst. Sci. Discuss., 4, 363-405, doi:10.5194/hessd-4-363-2007, 2007. Bibtex EndNote Reference Manager XML
