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Docta Complutense author Bussi, G. author Rodríguez Lloveras, Xavier author Francés, F. author Benito, G. author Sánchez Moya, Yolanda author Sopeña, Alfonso 2023-06-19T13:52:43Z 2023-06-19T13:52:43Z 2013-08-29 1027-5606 10.5194/hess-17-3339-2013 https://hdl.handle.net/20.500.14352/34559 https://doi.org/10.5194/hess-17-3339-2013 https://www.publications.copernicus.org/https://www.egu.eu/ Soil loss and sediment transport in Mediterranean areas are driven by complex non-linear processes which have been only partially understood. Distributed models can be very helpful tools for understanding the catchment-scale phenomena which lead to soil erosion and sediment transport. In this study, a modelling approach is proposed to reproduce and evaluate erosion and sediment yield processes in a Mediterranean catchment (Rambla del Poyo, Valencia, Spain). Due to the lack of sediment transport records for model calibration and validation, a detailed description of the alluvial stratigraphy infilling a check dam that drains a 12.9 km2 sub-catchment was used as indirect information of sediment yield data. These dam infill sediments showed evidences of at least 15 depositional events (floods) over the time period 1990–2009. The TETIS model, a distributed conceptual hydrological and sediment model, was coupled to the Sediment Trap Efficiency for Small Ponds (STEP) model for reproducing reservoir retention, and it was calibrated and validated using the sedimentation volume estimated for the depositional units associated with discrete runoff events. The results show relatively low net erosion rates compared to other Mediterranean catchments (0.136Mgha−1 yr−1), probably due to the extensive outcrops of limestone bedrock, thin soils and rather homogeneous vegetation cover. The simulated sediment production and transport rates offer model satisfactory results, further supported by in-site palaeohydrological evidences and spatial validation using additional check dams, showing the great potential of the presented data assimilation methodology for the quantitative analysis of sediment dynamics in ungauged Mediterranean basins. eng Atribución 3.0 España Sediment yield model implementation based on check dam infill stratigraphy in a semiarid Mediterranean catchment journal article URL https://docta.ucm.es/bitstreams/efc38116-caa3-4810-a9fa-39e5862b2a2c/download File MD5 3d4d4332b129745eb04caf8701f36c4a 11402637 application/pdf hess-17-3339-2013.pdf URL https://docta.ucm.es/bitstreams/ccc51214-a7be-4f7d-bb65-7135660f8014/download File MD5 52c38afe343c0b0eae63c8149eb45168 86027 text/plain hess-17-3339-2013.pdf.txt