Multiscale flood risk assessment under climate change: the case of the Miño River in the city of Ourense, Spain

Fernández-Nóvoa, Diego; García-Feal, Orlando; González-Cao, José; deCastro, Maite; Gómez-Gesteira, Moncho

doi:https://doi.org/10.5194/nhess-22-3957-2022

Articles | Volume 22, issue 12

https://doi.org/10.5194/nhess-22-3957-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-22-3957-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 12

Research article

|

12 Dec 2022

Research article |

| 12 Dec 2022

Multiscale flood risk assessment under climate change: the case of the Miño River in the city of Ourense, Spain

Diego Fernández-Nóvoa, Orlando García-Feal, José González-Cao, Maite deCastro, and Moncho Gómez-Gesteira

Data sets

Coordinated Downscaling Experiment - European Domain EURO-CORDEX https://www.euro-cordex.net/060378/index.php.en

The Regional Meteorological Agency of Galicia MeteoGalicia https://www.meteogalicia.gal/observacion/estacions/estacions.action?request_locale=e

HEC-HMS U.S. Army Corps of Engineers https://www.hec.usace.army.mil/software/hec-hms/downloads.aspx

Short summary

A multiscale analysis, where the historical and future precipitation data from the CORDEX project were used as input in a hydrological model (HEC-HMS) that, in turn, feeds a 2D hydraulic model (Iber+), was applied to the case of the Miño-Sil basin (NW Spain), specifically to Ourense city, in order to analyze future changes in flood hazard. Detailed flood maps indicate an increase in the frequency and intensity of future floods, implying an increase in flood hazard in important areas of the city.