Influence of the Southern Hemisphere supergyre on Antarctic Intermediate Water properties in CMIP6 models ...
<!--!introduction!--> The Southern Hemisphere supergyre connects the Atlantic, Pacific, and Indian basins and is a key pathway in the global overturning circulation. The supergyre properties are investigated in the historical simulation of CMIP6 models and compared to the ECCO reanalysis produ...
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| Format: | Conference Object |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Online Access: | https://dx.doi.org/10.57757/iugg23-2786 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019073 |
| Summary: | <!--!introduction!--> The Southern Hemisphere supergyre connects the Atlantic, Pacific, and Indian basins and is a key pathway in the global overturning circulation. The supergyre properties are investigated in the historical simulation of CMIP6 models and compared to the ECCO reanalysis product. The vertical structure of the supergyre is assessed by calculating strength and position metrics as a function of depth. The study aims to identify how the supergyre metrics at intermediate depths influence the properties and circulation of Antarctic Intermediate Water (AAIW). Results suggest that the connectivity of the supergyre across basins varies strongly with depth and across models. In CMIP6 models, the supergyre appears well-connected through all basins at the surface, via the Indonesian Throughflow and Tasman Leakage. At intermediate depths, CMIP6 models differ, with some CMIP6 models showing a connected supergyre in all three basins whereas other models present a disconnected Pacific basin. In all ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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