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ArcDrain: A GIS Add-In for Automated Determination of Surface Runoff in Urban Catchments

Abstract: Surface runoff determination in urban areas is crucial to facilitate ex ante water planning, especially in the context of climate and land cover changes, which are increasing the frequency of floods, due to a combination of violent storms and increased imperviousness. To this end, the spatial identification of urban areas prone to runoff accumulation is essential, to guarantee effective water management in the future. Under these premises, this work sought to produce a tool for automated determination of urban surface runoff using a geographic information systems (GIS). This tool, which was designed as an ArcGIS add-in called ArcDrain, consists of the discretization of urban areas into subcatchments and the subsequent application of the rational method for runoff depth estimation. The formulation of this method directly depends on land cover type and soil permeability, thereby enabling the identification of areas with a low infiltration capacity. ArcDrain was tested using the city of Santander (northern Spain) as a case study. The results achieved demonstrated the accuracy of the tool for detecting high runoff rates and how the inclusion of mitigation measures in the form of sustainable drainage systems (SuDS) and green infrastructure (GI) can help reduce flood hazards in critical zones

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Manchado C., Roldán-Valcarce A., Jato-Espino D., Andrés-Doménech I.,

 Fuente: International Journal of Environmental Research and Public Health, 2021, 18(16), 8802

Editorial: MDPI

 Fecha de publicación: 20/08/2021

Nº de páginas: 17

Tipo de publicación: Artículo de Revista

 DOI: 10.3390/ijerph18168802

ISSN: 1661-7827,1660-4601

Proyecto español: RTI2018-094217-B-C32