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Towards an automatic early warning system of flood hazards based on precipitation forecast: the case of the Miño River (NW Spain)

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Towards an automatic early warning system of flood hazards based on precipitation forecast: the case of the Miño River (NW Spain)

González Cao, José; García Feal, Orlando; Fernandez Novoa, Diego; Domínguez Alonso, José Manuel; Gómez Gesteira, Ramon
 
DATE : 2019-11-20
UNIVERSAL IDENTIFIER : http://hdl.handle.net/11093/1867
UNESCO SUBJECT : 2508 Hidrología ; 3301.12 Hidrodinámica ; 1203.11 Logicales de Ordenadores ; 2502.02 Climatología Aplicada ; 2509.19 Análisis del Tiempo
DOCUMENT TYPE : article

ABSTRACT :

An early warning system for flood prediction based on precipitation forecast is presented. The system uses rainfall forecast provided by MeteoGalicia in combination with a hydrologic (Hydrologic Modeling System, HEC-HMS) and a hydraulic (Iber+) model. The upper reach of the Miño River and the city of Lugo (NW Spain) are used as a study area. Starting from rainfall forecast, HEC-HMS calculates the streamflow and Iber+ is automatically executed for some previously defined risk areas when a certain threshold is exceeded. The analysis based on historical extreme events shows that the system can provide accurate results in less than 1 h for a forecast horizon of 3 d and report an alert situation to decision makers.

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