Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf
The bimodal wave climate of the semi-protected shallow Gulf St Vincent in South Australia has been analyzed through a forty-year (1980-2020) wave hindcast and an investigation into the climatic drivers of wave climate anomalies is presented. The sea and swell partitions of the wave climate were mode...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-04-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2024.1364736/full |
| _version_ | 1827278971809562624 |
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| author | Benjamin Perry Bas Huisman José A. A. Antolínez Patrick A. Hesp Graziela Miot da Silva |
| author_facet | Benjamin Perry Bas Huisman José A. A. Antolínez Patrick A. Hesp Graziela Miot da Silva |
| author_sort | Benjamin Perry |
| collection | DOAJ |
| description | The bimodal wave climate of the semi-protected shallow Gulf St Vincent in South Australia has been analyzed through a forty-year (1980-2020) wave hindcast and an investigation into the climatic drivers of wave climate anomalies is presented. The sea and swell partitions of the wave climate were modelled independently as well as using an integrated model with both partitions represented. The wave hindcast was validated against two wave buoys located off the coast of Adelaide’s metropolitan beaches and key wave parameter anomalies were calculated across the gulf. Teleconnections were investigated, and the Southern Annular Mode is found to have the strongest correlations to wave parameter anomalies while the Southern Oscillation Index and the Dipole Mode Index fluctuations are found to correlate seasonally with wave parameter anomalies. Projected future trends of these climate drivers from literature have been related to the teleconnections found in this study to inform future trends of bimodal wave conditions in the gulf. The Southern Annular Mode is projected to trend positive which will reduce wave height and the westerly component of waves in the gulf, while the Southern Oscillation Index is projected to become more variable in the future which will lead to more extreme winter and spring wave conditions. An understanding of these trends allows coastal managers to pre-emptively manage the impacts of waves on the coastline at a seasonal to annual basis and provides insight into future wave conditions beyond these time periods. |
| first_indexed | 2024-04-24T08:11:15Z |
| format | Article |
| id | doaj.art-1451207a54e3414eb1e293dc40b25fec |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-24T08:11:15Z |
| publishDate | 2024-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-1451207a54e3414eb1e293dc40b25fec2024-04-17T04:56:35ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452024-04-011110.3389/fmars.2024.13647361364736Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulfBenjamin Perry0Bas Huisman1José A. A. Antolínez2Patrick A. Hesp3Graziela Miot da Silva4Beach and Dune Systems (BEADS) Laboratory. College of Science and Engineering, Flinders University, Adelaide, SA, AustraliaDeltares, Delft, NetherlandsDepartment of Hydraulic Engineering, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, NetherlandsBeach and Dune Systems (BEADS) Laboratory. College of Science and Engineering, Flinders University, Adelaide, SA, AustraliaBeach and Dune Systems (BEADS) Laboratory. College of Science and Engineering, Flinders University, Adelaide, SA, AustraliaThe bimodal wave climate of the semi-protected shallow Gulf St Vincent in South Australia has been analyzed through a forty-year (1980-2020) wave hindcast and an investigation into the climatic drivers of wave climate anomalies is presented. The sea and swell partitions of the wave climate were modelled independently as well as using an integrated model with both partitions represented. The wave hindcast was validated against two wave buoys located off the coast of Adelaide’s metropolitan beaches and key wave parameter anomalies were calculated across the gulf. Teleconnections were investigated, and the Southern Annular Mode is found to have the strongest correlations to wave parameter anomalies while the Southern Oscillation Index and the Dipole Mode Index fluctuations are found to correlate seasonally with wave parameter anomalies. Projected future trends of these climate drivers from literature have been related to the teleconnections found in this study to inform future trends of bimodal wave conditions in the gulf. The Southern Annular Mode is projected to trend positive which will reduce wave height and the westerly component of waves in the gulf, while the Southern Oscillation Index is projected to become more variable in the future which will lead to more extreme winter and spring wave conditions. An understanding of these trends allows coastal managers to pre-emptively manage the impacts of waves on the coastline at a seasonal to annual basis and provides insight into future wave conditions beyond these time periods.https://www.frontiersin.org/articles/10.3389/fmars.2024.1364736/fullwave modellingsouthern annular modeEnsoIndian Ocean DipoleGulf St VincentSouth Australia |
| spellingShingle | Benjamin Perry Bas Huisman José A. A. Antolínez Patrick A. Hesp Graziela Miot da Silva Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf Frontiers in Marine Science wave modelling southern annular mode Enso Indian Ocean Dipole Gulf St Vincent South Australia |
| title | Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf |
| title_full | Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf |
| title_fullStr | Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf |
| title_full_unstemmed | Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf |
| title_short | Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf |
| title_sort | impacts of large scale climate modes on the current and future bimodal wave climate of a semi protected shallow gulf |
| topic | wave modelling southern annular mode Enso Indian Ocean Dipole Gulf St Vincent South Australia |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2024.1364736/full |
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