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  Upper Deep Water: Where the ocean does not overturn

De Lavergne, C., Sallée, J.-B., Madec, G., Evans, D. G., Naveira Garabato, A., Zika, J., Klocker, A. (2023): Upper Deep Water: Where the ocean does not overturn, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1256

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017375 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017375_1
Genre: Conference Paper

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 Creators:
De Lavergne, Casimir1, Author
Sallée, Jean-Baptiste1, Author
Madec, Gurvan1, Author
Evans, D. Gwyn1, Author
Naveira Garabato, Alberto1, Author
Zika, Jan1, Author
Klocker, Andreas1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2023
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-1256
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -