Articles | Volume 1-osr7
https://doi.org/10.5194/sp-1-osr7-12-2023
https://doi.org/10.5194/sp-1-osr7-12-2023
27 Sep 2023
 | OSR7 | Chapter 3.3
 | 27 Sep 2023 | OSR7 | Chapter 3.3

Recent changes in extreme wave events in the south-western South Atlantic

Carolina B. Gramcianinov, Joanna Staneva, Celia R. G. Souza, Priscila Linhares, Ricardo de Camargo, and Pedro L. da Silva Dias

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Cited articles

ANTAQ: Anuário da Agência Nacional de Transporttes Aquaviários (ANTAQ), Annual Report of the National Water Transportation Agency, Brazil, https://anuario.antaq.gov.br, last access: 12 May 2022 (in Portuguese). a
Aouf, L.: EU Copernicus Marine Service Quality Information Document for Global Ocean Waves Analysis and Forecasting Product, GLOBAL_ANALYSISFORECAST_WAV_001_027, Issue 3, Mercator Ocean International, https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-GLO-QUID-001-027.pdf (last access: 5 April 2023), 2022. a
Ardhuin, F., Rogers, E., Babanin, A. V., Filipot, J.-F., Magne, R., Roland, A., van der Westhuysen, A., Queffeulou, P., Lefevre, J.-M., Aouf, L., and Collard, F.: Semiempirical Dissipation Source Functions for Ocean Waves. Part I: Definition, Calibration, and Validation, J. Phys. Oceanogr., 40, 1917–1941, https://doi.org/10.1175/2010jpo4324.1, 2010. a
Belmonte Rivas, M. and Stoffelen, A.: Characterizing ERA-Interim and ERA5 surface wind biases using ASCAT, Ocean Sci., 15, 831–852, https://doi.org/10.5194/os-15-831-2019, 2019. a
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We analyse extreme wave event trends in the south-western South Atlantic in the last 29 years using wave products and coastal hazard records. The results show important regional changes associated with increased mean sea wave height, wave period, and wave power. We also find a rise in the number of coastal hazards related to waves affecting the state of São Paulo, Brazil, which partially agrees with the increase in extreme waves in the adjacent ocean sector but is also driven by local factors.
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