**4. SCALES, a model to consider the climate change impact on soil erosion by water**

The structure and modularity of SCALES allows us to plan its use at long-term scale. This approach has been set as part of study of the impact of the climate change on the soil erosion hazard. We tried to compare at a monthly scale the present levels of hazard with those forecasted for the year 2100 based on a case study carried out in Normandy (Fig. 1B).
