@article{fdi:010071983, title = {{S}imulating flash floods at hourly time-step using the {SWAT} model}, author = {{B}oithias, {L}aurie and {S}auvage, {S}. and {L}enica, {A}. and {R}oux, {H}. and {A}bbaspour, {K}. {C}. and {L}arnier, {K}. and {D}artus, {D}. and {S}anchez-{P}erez, {J}. {M}.}, editor = {}, language = {{ENG}}, abstract = {{F}lash floods are natural phenomena with environmental, social and economic impacts. {T}o date, few numerical models are able to simulate hydrological processes at catchment scale at a reasonable time scale to describe flash events with accurate details. {C}onsidering a similar to 810 km(2) {M}editerranean river coastal basin (southwestern {F}rance) as a study case, the objective of the present study was to assess the ability of the sub-daily module of the lumped {S}oil and {W}ater {A}ssessment {T}ool ({SWAT}) to simulate discharge (1) time-continuously, by testing two sub-basin delineation schemes, two catchment sizes, and two output time-steps; and (2) at flood time-scale, by comparing the performances of {SWAT} to the performances of the event-based fully distributed {MARINE} model when simulating flash flood events. {W}e showed that there was no benefit of decreasing the size of the minimum drainage area (e.g., from similar to 15 km(2) down to similar to 1 km(2)) when delineating sub-basins in {SWAT}. {W}e also showed that both the {MARINE} and {SWAT} models were equally able to reproduce peak discharge, flood timing and volume, and that they were both limited by rainfall and soil data. {H}ence, the {SWAT} model appears to be a reliable modelling tool to predict discharge over long periods of time in large flash-flood-prone basins.}, keywords = {flash storm ; flood event ; sub-daily simulation ; peak discharge ; runoff ; {MARINE} model ; {M}editerranean watershed ; {FRANCE} ; {ZONE} {MEDITERRANEENNE}}, booktitle = {}, journal = {{W}ater}, volume = {9}, numero = {12}, pages = {art. 929 [25 p. ]}, ISSN = {2073-4441}, year = {2017}, DOI = {10.3390/w9120929}, URL = {https://www.documentation.ird.fr/hor/fdi:010071983}, }