@article{fdi:010066447, title = {{M}ulti-scale calibration and validation of {MHYDAS}-erosion for a small mediterranean vineyard catchment : a case study}, author = {{G}umi{\`e}re, {S}.{J}. and {D}elattre, {L}. and {L}e {B}issonnais, {Y}. and {C}heviron, {B}. and {B}en {S}limane, {A}. and {R}aclot, {D}amien}, editor = {}, language = {{ENG}}, abstract = {{I}n this work we present a case study of the multi-scale calibration and validation of {MHYDAS}-{E}rosion applied to a {M}editerranean vineyard. {T}he calibration was performed using expert knowledge in linking physical parameters to land uses with the automatic parameter estimation software {PEST}. {MHYDAS}-{E}rosion was calibrated and validated using spatially distributed observations on total discharge and soil loss. {C}alibration has been performed within six rainfall events; both hydrological and erosion parameters were calibrated using {RMSE}, {R}2 and the modified version of the {N}ash-{S}utcliffe model efficiency criteria. {C}alibration results indicate there was good agreement between simulated and observed total discharge and total soil loss at the seven observation points (modified {N}ash-{S}utcliffe efficiency (m{NSE}) ranging between 0.89 and 0.95). {A}cceptable results were obtained in terms of parameter values, identification of their physical meaning and coherence. {H}owever, some limitations were also identified, and could be remedied in more detailed studies involving (i) spatially-distributed rainfall on the catchment, (ii) a description of groundwater exfiltration and (iii) spatially-distributed properties of the ditches over the catchment. {V}alidation results were quite satisfactory for three of the four validation events. {T}he results from this case study suggest that {MHYDAS}-{E}rosion may need a specific calibration when applied to another catchment, but once it is calibrated, it could be used for multi-scale soil loss forecasting.}, keywords = {{EROSION} {HYDRIQUE} ; {MODELE} ; {CALIBRAGE} ; {ERODIBILITE} {DU} {SOL} ; {ESTIMATION} ; {SOL} {CULTIVE} ; {VIGNE} ; {DEBIT} ; {MESURE} ; {ECOULEMENT} ; {ETUDE} {DE} {CAS} ; {BASSIN} {VERSANT} ; {COURS} {D}'{EAU} ; {MODELE} {MHYDAS} {EROSION} ; {CALAGE} ; {VALIDATION} ; {FRANCE} ; {LANGUEDOC} {ROUSSILLON} ; {ROUJAN} {BASSIN} {VERSANT} ; {ZONE} {MEDITERRANEENNE}}, booktitle = {}, journal = {{R}evue des {S}ciences de l'{E}au}, volume = {27}, numero = {1}, pages = {21--36}, ISSN = {1718-8598}, year = {2014}, DOI = {10.7202/1021980ar}, URL = {https://www.documentation.ird.fr/hor/fdi:010066447}, }