Evaluation of Rainfall-Runoff Models for Mediterranean Subcatchments

Abstract

Commission WG VIII/4KEY WORDS: Runoff, PESERA, hydrology, Mediterranean ABSTRACT:The development and the application of rainfall-runoff models have been a corner-stone of hydrological research for many decades. The amount of rainfall and its intensity and variability control the generation of runoff and the erosional processes operating at different scales. These interactions can be greatly variable in Mediterranean catchments with marked hydrological fluctuations. The aim of the study was to evaluate the performance of rainfall-runoff model, for rainfall-runoff simulation in a Mediterranean subcatchment. The Pan-European Soil Erosion Risk Assessment (PESERA), a simplified hydrological process-based approach, was used in this study to combine hydrological surface runoff factors. In total 128 input layers derived from data set includes; climate, topography, land use, crop type, planting date, and soil characteristics, are required to run the model. Initial ground cover was estimated from the Landsat ETM data provided by ESA. This hydrological model was evaluated in terms of their performance in Goksu River Watershed, Turkey. It is located at the Central Eastern Mediterranean Basin of Turkey. The area is approximately 2000 km 2 . The landscape is dominated by bare ground, agricultural and forests. The average annual rainfall is 636.4mm. This study has a significant importance to evaluate different model performances in a complex Mediterranean basin. The results provided comprehensive insight including advantages and limitations of modelling approaches in the Mediterranean environment.

Determinación de los caudales mínimos y máximos en las cuencas de la región Este de República Dominicana utilizando registros completados con modelos de regresión bivariado y modelo lluvia-escorrentía

“…Estudios realizados en 2016 estiman de los parámetros necesarios para aplicar un método basado en erosión, pero con el mismo objetivo de generar un registro de caudales basado en un registro de precipitación para un evento de tormenta (Cilek et al, 2016). Es importante señalar que la precisión obtenida de realizar esta inferencia desde parámetros erosivos es muy inferior a la obtenida del completado directo de mediciones pluviométricas.…”