Regional Downscaling of Copernicus ERA5 Wave Data for Coastal Engineering Activities and Operational Coastal Services
Department of Engineering, Roma Tre University, 00161 Rome, Italy
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Academic Editors: Giorgio Fontolan and Sergio Cappucci
Water 2021, 13(6), 859; https://doi.org/10.3390/w13060859
Received: 3 March 2021
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Accepted: 19 March 2021
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Published: 22 March 2021
(This article belongs to the Special Issue Coastal Sediment Management: From Theory to Practice)
Hindcasted wind and wave data, available on a coarse resolution global grid (Copernicus ERA5 dataset), are downscaled by means of the numerical model SWAN (simulating waves in the nearshore) to produce time series of wave conditions at a high resolution along the Italian coasts in the central Tyrrhenian Sea. In order to achieve the proper spatial resolution along the coast, the finite element version of the model is used. Wave data time series at the ERA5 grid are used to specify boundary conditions for the wave model at the offshore sides of the computational domain. The wind field is fed to the model to account for local wave generation. The modeled sea states are compared against the multiple wave records available in the area, in order to calibrate and validate the model. The model results are in quite good agreement with direct measurements, both in terms of wave climate and wave extremes. The results show that using the present modeling chain, it is possible to build a reliable nearshore wave parameters database with high space resolution. Such a database, once prepared for coastal areas, possibly at the national level, can be of high value for many engineering activities related to coastal area management, and can be useful to provide fundamental information for the development of operational coastal services.
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Keywords:
waves; wind; Copernicus program; ERA5; SWAN model; nearshore; coastal zone; coastal erosion
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MDPI and ACS Style
Bellotti, G.; Franco, L.; Cecioni, C. Regional Downscaling of Copernicus ERA5 Wave Data for Coastal Engineering Activities and Operational Coastal Services. Water 2021, 13, 859. https://doi.org/10.3390/w13060859
AMA Style
Bellotti G, Franco L, Cecioni C. Regional Downscaling of Copernicus ERA5 Wave Data for Coastal Engineering Activities and Operational Coastal Services. Water. 2021; 13(6):859. https://doi.org/10.3390/w13060859
Chicago/Turabian StyleBellotti, Giorgio, Leopoldo Franco, and Claudia Cecioni. 2021. "Regional Downscaling of Copernicus ERA5 Wave Data for Coastal Engineering Activities and Operational Coastal Services" Water 13, no. 6: 859. https://doi.org/10.3390/w13060859
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