A simple and robust fine sediment risk model can be extremely beneficial as it helps us to target and tailor both further monitoring work and catchment management interventions.
The SCIMAP fine sediment risk model was developed through a collaborative project between Durham and Lancaster Universities. The SCIMAP Project was supported by the UK Natural Environment Research Council, the Eden Rivers Trust, the Department of the Environment, Food and Rural Affairs and the Environment Agency.
The SCIMAP model gives an indication of where the highest risk of sediment erosion risk occurs in the catchment by (1) identifying locations where, due to landuse, sediment is available for mobilisation (pollutant source mapping) and (2) combining this information with a map of hydrological connectivity (likelihood of pollutant mobilisation and transportation to receptor).
The combination of the sediment availability and hydrological connectivity maps results in a final fine sediment erosion risk model that is useful for targeting field surveys and the mitigation of erosion risk at catchment, farm or field scale.