Compared modelling of the upstream Stang Alar catchment

Abstract

Anjou Recherche, with the FLUPOL model and IHS, with the MOSQITO model, developed by Wallingford Software, have been asked by "Communauté Urbaine de Brest" to conduct a modelling study of the Stangalard catchment in Brest. The aim was also to compare these two programs of storm sewer pollution modelling. For Hydraulic, the results show a good comparison between observed and predicted results. If pollution results do not have the same accuracy, the mass balance comparisons are fairly good for the pollutants simulated. On the BREST site, the FLUPOL model seems to give better pollution results while MOSQITO tends to underestimate the pollution load. But the profit is also methodological as interactivity of the different study stages: model building, flow surveying, sampling and verification was found to be useful.