Modeled contributions of sediment sources to total suspended sediment flux in two mesoscale catchments

The application enables to show the contribution of erosion zones that act as sediment sources to total suspended sediment load in percent simulated with the IBER soil erosion model. Model output can be visualized for two mesoscale Mediterranean catchments in southeastern France, the 42 km2 Claduègne catchment and the 20 km2 Galabre catchment and for different sets of scenarios: (i) CDA threshold: The threshold of contributing drainage area (CDA) defines the length of the river network. Values were varied from 15 ha to 500 ha. (ii) Manning's n: river: Manning's roughness parameter in the river network. Values were varied from 0.025 to 0.1. (iii) Manning's n: hillslopes: Manning's roughness parameter on the hillslopes. Values were varied from 0.2 to 0.8. (iv) Source classification: Source classification based on connectivity, i.e. sediment sources were subdivided based on their distance to the outlet and their distance to the river. In addition to the modeled source contributions the time series of rainfall intensity, liquid and solid discharge can be displayed.