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

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

doi:https://doi.org/10.5194/sp-1-osr7-12-2023

Articles | Volume 1-osr7

https://doi.org/10.5194/sp-1-osr7-12-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Report:

7th edition of the Copernicus Ocean State Report (OSR7)

https://doi.org/10.5194/sp-1-osr7-12-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 1-osr7

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

Data sets

EU Copernicus Marine Service Product Global Ocean Waves Reanalysis (WAVERYS) https://doi.org/10.48670/moi-00022

EU Copernicus Marine Service Product Global Ocean Waves Analysis and Forecasting Product https://doi.org/10.48670/moi-00017

Short summary

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.