Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Spiraling pathways of global deep waters to the surface of the Southern Ocean
Tamsitt, V.; Drake, H.F.; Morrison, A.K.; Talley, L.D.; Dufour, C.O.; Gray, A.R.; Griffies, S.M.; Mazloff, M.R.; Sarmiento, J.L.; Wang, J.; Weijer, W. (2017). Spiraling pathways of global deep waters to the surface of the Southern Ocean. Nature Comm. 8(1): 10 pp. https://dx.doi.org/10.1038/s41467-017-00197-0
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723
Peer reviewed article  
Beschikbaar in  Auteurs 
Auteurs  Top 
  • Tamsitt, V.
  • Drake, H.F.
  • Morrison, A.K.
  • Talley, L.D.
  • Dufour, C.O.
  • Gray, A.R.
  • Griffies, S.M.
  • Mazloff, M.R.
  • Sarmiento, J.L.
  • Wang, J.
  • Weijer, W.
Abstract
    Upwelling of global deep waters to the sea surface in the Southern Ocean closes the global overturning circulation and is fundamentally important for oceanic uptake of carbon and heat, nutrient resupply for sustaining oceanic biological production, and the melt rate of ice shelves. However, the exact pathways and role of topography in Southern Ocean upwelling remain largely unknown. Here we show detailed upwelling pathways in three dimensions, using hydrographic observations and particle tracking in high-resolution models. The analysis reveals that the northern-sourced deep waters enter the Antarctic Circumpolar Current via southward flow along the boundaries of the three ocean basins, before spiraling southeastward and upward through the Antarctic Circumpolar Current. Upwelling is greatly enhanced at five major topographic features, associated with vigorous mesoscale eddy activity. Deep water reaches the upper ocean predominantly south of the Antarctic Circumpolar Current, with a spatially nonuniform distribution. The timescale for half of the deep water to upwell from 30° S to the mixed layer is ~60–90 years.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.