Global evaluation and sensitivity analysis of a physically based flow and reactive transport model on a laboratory experiment
| Autor: | Claire Lauvernet, Claudio Paniconi, Nadia Carluer, Laura Gatel, Sylvain Weill, Julien Tournebize |
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| Přispěvatelé: | RiverLy (UR Riverly), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), INRS ETE UNIVERSITE DU QUEBEC CAN, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Université de Strasbourg (UNISTRA), Hydrosystèmes et Bioprocédés (UR HBAN) |
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Water flow MORRIS SENSITIVITY ANALYSIS Flow (psychology) 0207 environmental engineering Soil science 02 engineering and technology 01 natural sciences INTEGRATED SURFACE-SUBSURFACE MODEL PESTICIDES Hydraulic conductivity EXPERIMENTAL DATA Calibration Sensitivity (control systems) 020701 environmental engineering 0105 earth and related environmental sciences Ecological Modeling Experimental data ZABR - SITE ARDIERE-MORCILLE Catchment hydrology 13. Climate action [SDE]Environmental Sciences Environmental science REACTIVE SOLUTE TRANSFER Laboratory experiment Software |
| Zdroj: | Environmental Modelling and Software Environmental Modelling and Software, Elsevier, 2019, 113, pp.73-83. ⟨10.1016/j.envsoft.2018.12.006⟩ |
| ISSN: | 1364-8152 |
| Popis: | International audience; Spatialized physically based models are necessary tools for assessing the fate of pesticides in natural environments transferred by diffuse pollution. In this study the CATHY (CATchment HYdrology) model is coupled with reactive processes (adsorption and degradation). The resulting reactive subsurface component is evaluated on laboratory data by (i) comparing the model performance on experimental data using a combination of statistical criteria, (ii) conducting a Morris sensitivity analysis on both hydrological and solute transfer variables, and (iii) improving the CATHY model parameter settings based on the sensitivity analysis results. The sensitivity analysis produces a ranking of the factors wherein those that are particularly influential on water flow and reactive solute transfer emerge. These are found to be the saturated hydraulic conductivity, the retention curve parameters, and the sorption coefficient. After a calibration of influential parameters based on Morris sensitivity analysis, the results obtained are largely consistent with laboratory data. |
| Databáze: | OpenAIRE |
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