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 Coupled 2D hydrologic-hydraulic catchment scale flood modeling with data assimilation capabilities: the DassHydro platform Pierre-André Garambois 313f0eb3a30b64100b3bd8476dd00157 inrae.fr pierre-andre-garambois 736767 19004-736767 https://orcid.org/0000-0001-8350-6741 https://www.idref.fr/16736331X Jérôme Monnier d9635795c6c4e18268493bea9100c9af insa-toulouse.fr jeromemonnier 172855 142702-172855 https://orcid.org/0000-0001-6227-7396 https://scholar.google.fr/citations?user=af4iwD4AAAAJ&hl=en&oi=ao https://www.idref.fr/050838296 Villenave Lilian 2989790-0 Pierre-André Garambois 313f0eb3a30b64100b3bd8476dd00157 inrae.fr 2023-12-14 13:50:22 2025-10-22 18:04:09 2023-12-14 16:06:01 2023-11-28 2023-12-14 Scientists contributor Pierre-André Garambois 313f0eb3a30b64100b3bd8476dd00157 inrae.fr CCSD hal-04344714 https://hal.inrae.fr/hal-04344714 garambois:hal-04344714 <i>Colloque SHF - "Prévision des crues et inondations, avancées, valorisations et perspectives"</i>, Nov 2023, Toulouse,, France Colloque SHF - "Prévision des crues et inondations, avancées, valorisations et perspectives", Nov 2023, Toulouse,, France HAL Authorization Sciences De l'Environnement Université Toulouse 2 Université de Toulouse CNRS - Centre national de la recherche scientifique Aix Marseille Université Institut National des Sciences Appliquées de Toulouse CNRS-INSMI - INstitut des Sciences Mathématiques et de leurs Interactions Institut de Mathématiques de Toulouse GIP Bretagne Environnement Université Toulouse 1 Capitole Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience Groupe INSA Institut National de Recherche en Agriculture, Alimentation et Environnement INRAE-AQUA Université Toulouse 3 Université de Toulouse / Toulouse INP Université de Toulouse / Toulouse INP Réseau "Systèmes Agricoles et Eau" Ecologie et biodiversité INRAE PACA International No No Yes Yes Coupled 2D hydrologic-hydraulic catchment scale flood modeling with data assimilation capabilities: the DassHydro platform Pierre-André Garambois 313f0eb3a30b64100b3bd8476dd00157 inrae.fr pierre-andre-garambois 736767 19004-736767 https://orcid.org/0000-0001-8350-6741 https://www.idref.fr/16736331X Jérôme Monnier d9635795c6c4e18268493bea9100c9af insa-toulouse.fr jeromemonnier 172855 142702-172855 https://orcid.org/0000-0001-6227-7396 https://scholar.google.fr/citations?user=af4iwD4AAAAJ&hl=en&oi=ao https://www.idref.fr/050838296 Villenave Lilian 2989790-0 Colloque SHF - "Prévision des crues et inondations, avancées, valorisations et perspectives" 2023-11-28 2023-11-30 Toulouse, France English data river hydraulics 2D hydrology High Resolution modeling inundation Floods Floods inundation High Resolution modeling 2D hydrology river hydraulics data Environmental Sciences Conference papers Conference papers Conference papers

This work presents the new DassHydro computational platform which includes a sequential coupling of the SMASH (Spatially Spatially distributed Modelling and ASsimilation for Hydrology models) hydrological model and the DassFlow (Data assimilation for free surface flows) multi-D hydraulic model. The complete code has advanced Variational Data Assimilation (VDA) capabilities, applicable to the whole chain. Preprocessing tools for automatic domain meshing and coupling as well as visualisation tools are included. Numerical simulations of floods at high resolution with the integration of multi-sensor data reducing uncertainties are thus possible. Each model is built from similar technologies: efficient Fortran solvers (with computations in parallel if required), adjoint codes generated by the automatic differentiation tool TAPENADE, Python interfacing based on the F90Wrap tool. The test cases show the capabilities of information transfer from the local generation of runoff at hydrological pixel scale on catchments to downstream river network and floodplains. Moreover, given observables especially on the hydraulic domain, the calibration of large dimension hydrological parameters is possible. The DassHydro platform is available online as an open source code including detailed documentations.

 201521789Y Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience RECOVER 2020-01-01
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http://www.irstea.fr/en/research/research-units/recover 026388766 0000 0001 2286 8343 https://ror.org/01h8pf755 Q858979 Institut National des Sciences Appliquées - Toulouse INSA Toulouse 1963-10-21
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http://www.insa-toulouse.fr 166783900 0000000403836348 200711888W https://ror.org/014vp6c30 Institut de Mathématiques de Toulouse UMR5219 IMT 2007-01-01 2025-01-01
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https://www.math.univ-toulouse.fr/ 15863621X 0000 0001 2176 4817 https://ror.org/035xkbk20 Aix Marseille Université AMU 2012-01-01
Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7
http://www.univ-amu.fr/ https://ror.org/003vg9w96 Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement INRAE 2020-01-01
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https://www.univ-toulouse.fr/ 026404354 0000000121902837 https://ror.org/0443n9e75 Université Toulouse Capitole UT Capitole 1970-01-01
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http://www.ut-capitole.fr/ 026403994 https://ror.org/04ezk3x31 Université Toulouse - Jean Jaurès UT2J 1971-01-01
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http://www.univ-tlse2.fr 026404672 0000000121617331 https://ror.org/02v6kpv12 Q1273188 Université Toulouse III - Paul Sabatier UT3 2025-01-01
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