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Article

Flood Hazards in Flat Coastal Areas of the Eastern Iberian Peninsula: A Case Study in Oliva (Valencia, Spain)

1
Institute for Water and Environmental Engineering (IIAMA), Department of Hydraulic Engineering and Environment, Universitat Politècnica de València, 46022 Valencia, Spain
2
Climate Change and Sustainable Development Sector (CSD), Division of Environment, Rural Development and Disaster Risk Management (RND), Inter-American Development Bank (IADB), Washington, DC 20577, USA
3
Research Centre PEGASO, Universitat Politècnica de València, 46022 Valencia, Spain
4
Department of Geological and Geotechnical Engineering, Universitat Politècnica de València, 46022 Valencia, Spain
5
Department of Geodynamics (GEODESPAL), Faculty of Geology, Complutense University of Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Pavol Miklánek
Water 2021, 13(21), 2975; https://doi.org/10.3390/w13212975
Received: 15 September 2021 / Revised: 15 October 2021 / Accepted: 19 October 2021 / Published: 21 October 2021
(This article belongs to the Special Issue Research of River Flooding)
Enhancing resilience against flooding events is of great importance. Eastern Iberian Peninsula coastal areas are well known for high intensity rainfalls known as DANA or “cold drop”. Extreme records in 24 h can exceed the annual average of the historical series. This phenomenon occurs normally in autumn due to convective storms generated by the existence of cold air in the upper layers of the atmosphere combined with warm winds coming from the Mediterranean Sea. In many coastal areas of the Eastern Iberian Peninsula, their flat topography, sometimes of a marsh nature, and the natural (e.g., dune ridges) and man-made (e.g., infrastructures) factors, result in devastating flooding events of great potential damage and risk for urban and rural areas. In this context, this paper presents the case study of the town of Oliva (Valencia, Spain) and how in a flooding event the flow tends to spread and accumulate along the flat coastal strip of this populated area, causing great potential damage. From that point, the paper discusses the particular issues that flood studies should consider in such flat and heavy rainy areas in terms of the hydrological and hydraulic models to be conducted to serve as the key tool of a correct risk assessment. This includes the correct statistical simulation of rainfalls, the hydrological model dependency on the return period and the correct geometry definition of all possible water barriers. An analysis of the disturbance that climatic change effects may introduce in future flooding events is also performed. View Full-Text
Keywords: flood hazard; extreme rainfall; Iberian Peninsula; Mediterranean Sea; coastal areas; convective storm; climatic change; hydrological model; hydraulic model flood hazard; extreme rainfall; Iberian Peninsula; Mediterranean Sea; coastal areas; convective storm; climatic change; hydrological model; hydraulic model
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MDPI and ACS Style

Eguibar, M.Á.; Porta-García, R.; Torrijo, F.J.; Garzón-Roca, J. Flood Hazards in Flat Coastal Areas of the Eastern Iberian Peninsula: A Case Study in Oliva (Valencia, Spain). Water 2021, 13, 2975. https://doi.org/10.3390/w13212975

AMA Style

Eguibar MÁ, Porta-García R, Torrijo FJ, Garzón-Roca J. Flood Hazards in Flat Coastal Areas of the Eastern Iberian Peninsula: A Case Study in Oliva (Valencia, Spain). Water. 2021; 13(21):2975. https://doi.org/10.3390/w13212975

Chicago/Turabian Style

Eguibar, Miguel Ángel, Raimon Porta-García, Francisco Javier Torrijo, and Julio Garzón-Roca. 2021. "Flood Hazards in Flat Coastal Areas of the Eastern Iberian Peninsula: A Case Study in Oliva (Valencia, Spain)" Water 13, no. 21: 2975. https://doi.org/10.3390/w13212975

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