Water and sediment fluxes in Mediterranean mountainous regions: Comprehensive dataset for hydro-sedimentological analyses and modelling in a mesoscale catchment (River Isábena, NE Spain)
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A comprehensive hydro-sedimentological dataset for the Isábena catchment, northeastern (NE) Spain, for the period 2010–2018 is presented to analyse water and sediment fluxes in a Mediterranean mesoscalecatchment. The dataset includes rainfall data from 12 rain gauges distributed within the study area complementedby meteorological data of 12 official meteo-stations. It comprises discharge data derived from water stage mea-surements as well as suspended sediment concentrations (SSCs) at six gauging stations of the River Isábena andits sub-catchments. Soil spectroscopic data from 351 suspended sediment samples and 152 soil samples were col-lected to characterize sediment source regions and sediment properties via fingerprinting analyses. The Isábenacatchment (445 km2) is located in the southern central Pyrenees ranging from 450 m to 2720 m a.s.l.; togetherwith a pronounced topography, this leads to distinct temperature and precipitation gradients. The River Isábenashows marked discharge variations and high sediment yields causing severe siltation problems in the downstreamBarasona Reservoir. The main sediment source is badland areas located on Eocene marls that are well connectedto the river network. The dataset features a comprehensive set of variables in a high spatial and temporal resolu-tion suitable for the advanced process understanding of water and sediment fluxes, their origin and connectivityand sediment budgeting and for the evaluation and further development of hydro-sedimentological models inMediterranean mesoscale mountainous catchments.
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