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Article

Correction of ERA5 Wind for Regional Climate Projections of Sea Waves

1
Istituto di Scienze Marine (ISMAR), Consiglio Nazionale delle Ricerche (CNR), 30122 Venice, Italy
2
Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), 81100 Caserta, Italy
3
Dipartimento di Ingegneria Civile, Edile e Ambientale (ICEA), Università degli Studi di Padova, 35122 Padua, Italy
4
Istituto di Scienze Polari (ISP), Consiglio Nazionale delle Ricerche (CNR), 30172 Venice, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco Gallerano and Giuseppe Pezzinga
Water 2022, 14(10), 1590; https://doi.org/10.3390/w14101590
Received: 5 April 2022 / Revised: 9 May 2022 / Accepted: 12 May 2022 / Published: 16 May 2022
(This article belongs to the Section Oceans and Coastal Zones)
This paper proposes a method to infer the future change in the wind-wave climate using reanalysis wind corrected to statistically match data from a regional climate model (RCM). The method is applied to the sea surface wind speed of the reanalysis ERA5 from the European Centre for Medium-Range Weather Forecasts. The correction is determined from a quantile mapping between ERA5 and the RCM at any given point in the geographical space. The issues that need to be addressed to better understand and apply the method are discussed. Corrected ERA5 wind fields are eventually used to force a spectral wave numerical model to simulate the climate of significant wave height. The correction strategy is implemented over the Adriatic Sea (a semi-enclosed basin of the Mediterranean Sea) and includes the present-day period (1981–2010) and the near-future period (2021–2050) under the two IPCC RCP4.5 and RCP8.5 concentration scenarios. Evaluation against observations of wind and waves gives confidence in the reliability of the proposed approach. Results confirm the evolution toward an overall decrease in storm wave severity in the basin, especially under RCP8.5 and in its northern area. It is expected that the methodology may be applied to other reanalyses, RCMs (including multi-model ensembles), or seas with similar characteristics. View Full-Text
Keywords: ERA5; wind waves; Adriatic Sea; sea states; bias correction ERA5; wind waves; Adriatic Sea; sea states; bias correction
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MDPI and ACS Style

Benetazzo, A.; Davison, S.; Barbariol, F.; Mercogliano, P.; Favaretto, C.; Sclavo, M. Correction of ERA5 Wind for Regional Climate Projections of Sea Waves. Water 2022, 14, 1590. https://doi.org/10.3390/w14101590

AMA Style

Benetazzo A, Davison S, Barbariol F, Mercogliano P, Favaretto C, Sclavo M. Correction of ERA5 Wind for Regional Climate Projections of Sea Waves. Water. 2022; 14(10):1590. https://doi.org/10.3390/w14101590

Chicago/Turabian Style

Benetazzo, Alvise, Silvio Davison, Francesco Barbariol, Paola Mercogliano, Chiara Favaretto, and Mauro Sclavo. 2022. "Correction of ERA5 Wind for Regional Climate Projections of Sea Waves" Water 14, no. 10: 1590. https://doi.org/10.3390/w14101590

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