Upper Deep Water: Where the ocean does not overturn ...
<!--!introduction!--> The ocean's global overturning circulation is a network of currents that redistributes vast amounts of heat, carbon and nutrients across the planet. It is traditionally conceptualized as a conveyor belt that carries and joins all major water masses of the global deep...
| Main Authors: | , , , , , , |
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| Format: | Conference Object |
| 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/iugg23-1256 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017375 |
| Summary: | <!--!introduction!--> The ocean's global overturning circulation is a network of currents that redistributes vast amounts of heat, carbon and nutrients across the planet. It is traditionally conceptualized as a conveyor belt that carries and joins all major water masses of the global deep ocean. Here we show that a voluminous mid-depth layer, termed Upper Deep Water, is excluded from the global conveyor belt. This exclusion results from topographic constraints on abyssal overturning, dynamical constraints on upwelling in the Antarctic Circumpolar Current, and ocean-sea ice interactions around Antarctica. The findings establish a revised schematic of the global overturning circulation and a dominant role of diffusive processes in the ventilation of Upper Deep Water. ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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