This paper presents a case study in assessment of erosion hotspots in an Andean watershed. To do this, we made use of an interface called Geospatial Modelling of Soil Erosion (GEMSE): a tool that integrates Geographical Information Systems (GIS) with the Water Erosion Prediction Project (WEPP) model. Its advantages are: (i) it is independent of any special GIS software used to create maps and t...

Sustainable groundwater production from karst aquifers is primarily dictated by its recharge rate. Therefore, it is essential to accurately quantify annual groundwater recharge in order to limit overexploitation and to evaluate artificial methods for groundwater enrichment. Infiltration during erratic flood events in karst basins may substantially contribute to aquifer recharge. However, the co...

Satellite monitoring of the seasonal snow cover in the visible range of the spectrum has been constantly improved thanks to a better spatial resolution. Sensors were introduced enabling snow, clouds and glacier ice to be distinguished. Thanks to refined data processing combined with a Geographic Information System (GIS), a method was developed to restore satellite images of the snow cover parti...

Land surface schemes are used in general circulation models (GCMs) to simulate the surface processes and the surface-atmosphere interactions. This paper addresses several aspects of land surface modelling from a hydrological perspective. It investigates the energy and water fluxes estimated by a typical land surface scheme (CSIRO9) for the Amazon and Mississippi River Basins, using river runoff...

The occurrence of permafrost in a highly permeable catchment has a profound effect on runoff generation. The presence of permafrost effectively makes the subsoil impermeable. Therefore, overland flow can be the dominant runoff-generating process during periglacial conditions. The absence of permafrost will promote subsurface drainage and, therefore, saturation excess overland flow can become th...