Identifying the drivers of the Weddell Gyre variability using a barotropic vorticity budget ...
<!--!introduction!--> The Weddell Gyre is one of the largest features of the ocean circulation adjacent to the Antarctic margins. The gyre is a dynamically complex region and participates in several processes relevant to global climate. For example, the gyre’s circulation and its strength have...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-0108 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016446 |
| Summary: | <!--!introduction!--> The Weddell Gyre is one of the largest features of the ocean circulation adjacent to the Antarctic margins. The gyre is a dynamically complex region and participates in several processes relevant to global climate. For example, the gyre’s circulation and its strength have been linked to changes in the properties and rates of export of Antarctic Bottom Water into the global abyssal ocean. However, the dynamic controls of the Weddell Gyre’s variability are largely unknown, possibly due to the complexities of the region: the interplay of the Weddell Gyre with an overturning circulation, strong buoyancy fluxes associated with sea ice formation and melt, and open and permeable boundaries which allow for significant inflows and outflows. In this work we analyse the mechanisms controlling the Weddell Gyre’s variability using a barotropic vorticity budget of a MOM6 simulation coupled with SIS2 and forced with a repeat year 1990-91 atmospheric state derived from JRA55-do. Unlike past ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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