Scientific synthesis reports and assessments
Scientific synthesis reports and assessments
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Articles | Volume 6-osr9
Articles | Volume 6-osr9
https://doi.org/10.5194/sp-6-osr9-12-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Report:
9th edition of the Copernicus Ocean State Report (OSR9)
https://doi.org/10.5194/sp-6-osr9-12-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6-osr9
30 Sep 2025
 | OSR9 | Chapter 4.2
 | 30 Sep 2025 | OSR9 | Chapter 4.2

An analysis of the 2023 summer and fall marine heat waves on the Newfoundland and Labrador Shelf

Nancy Soontiens, Heather J. Andres, Jonathan Coyne, Frédéric Cyr, Peter S. Galbraith, and Jared Penney

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Latest update: 02 May 2026
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Short summary
In this study, we explored a series of surface marine heat waves over the Newfoundland and Labrador Shelf in the summer and fall of 2023. We connected these marine heat waves to environmental conditions and found that low winds, high freshwater density, and high stratification were factors contributing to the unusually high sea surface temperature anomalies. We explored the vertical structure of temperature anomalies and found that the heat waves were confined near the surface for most of the summer.  
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9th edition of the Copernicus Ocean State Report (OSR9)
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