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.
the Creative Commons Attribution 4.0 License.
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.
the Creative Commons Attribution 4.0 License.
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
CORRESPONDING AUTHOR
Institute for Coastal Systems Analysis and Modeling, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Joanna Staneva
Institute for Coastal Systems Analysis and Modeling, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Celia R. G. Souza
Institute of Environmental Research, Secretariat of Environment, Infrastructure and Logistics of São Paulo State (SEMIL/SP), Rua Joaquim Távora 822, 04015-011, São Paulo – SP, Brazil
Department of Physical Geography, Faculty of Philosophy, Literature and Human Sciences, University of São Paulo (FFLCH/USP), Av. Prof. Lineu Prestes, 338, 05508-000, São Paulo – SP, Brazil
Priscila Linhares
Department of Physical Geography, Faculty of Philosophy, Literature and Human Sciences, University of São Paulo (FFLCH/USP), Av. Prof. Lineu Prestes, 338, 05508-000, São Paulo – SP, Brazil
Ricardo de Camargo
Department of Atmospheric Sciences, Institute of Astronomy, Geophysics and Atmospheric Science, University of São Paulo, Rua do Matão, 1226, 05508-090, São Paulo – SP, Brazil
Pedro L. da Silva Dias
Department of Atmospheric Sciences, Institute of Astronomy, Geophysics and Atmospheric Science, University of São Paulo, Rua do Matão, 1226, 05508-090, São Paulo – SP, Brazil
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Joanna Staneva, Angelique Melet, Jennifer Veitch, and Pascal Matte
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Knowledge of what causes maximum water levels is often key in coastal management. Processes, such as storm surge and atmospheric forcing, alter the predicted tide. Whilst most of these processes are modeled in present-day ocean forecasting, there is still a need for a better understanding of situations where modeled and observed water levels deviate from each other. Here, we will use machine learning to detect such anomalies within a network of sea-level observations in the North Sea.
Wei Chen, Joanna Staneva, Sebastian Grayek, Johannes Schulz-Stellenfleth, and Jens Greinert
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This study links the occurrence and persistence of density stratification in the southern North Sea to the increased number of extreme marine heat waves. The study further identified the role of the cold spells at the early stage of a year to the intensity of thermal stratification in summer. In a broader context, the research will have fundamental significance for further discussion of the secondary effects of heat wave events, such as in ecosystems, fisheries, and sediment dynamics.
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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.
We analyse extreme wave event trends in the south-western South Atlantic in the last 29 years...
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