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  • Articles  (4)
  • 2000-2004  (2)
  • 1980-1984  (2)
  • 1
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: Heat and freshwater transports through Fram Strait are understood to have a significant influence on the hydrographic conditions in the Arctic Ocean and on water mass modifications in the Nordic seas. To determine these transports and their variability reliable estimates of the volume transport through the strait are required. Current meter moorings were deployed in Fram Strait from September 1997 to September 1999 in the framework of the EU MAST III Variability of Exchanges in the Northern Seas programme. The monthly mean velocity fields reveal marked velocity variations over seasonal and annual time scales, and the spatial structure of the northward flowing West Spitsbergen Current and the southward East Greenland Current with a maximum in spring and a minimum in summer. The volume transport obtained by averaging the monthly means over two years amounts to 9.5 ± 1.4 Sv to the north and 11.1 ± 1.7 Sv to the south (1 Sv = 106 m3s−1). The West Spitsbergen Current has a strong barotropic and a weaker baroclinic component; in the East Greenland Current barotropic and baroclinic components are of similar magnitude. The net transport through the strait is 4.2 ± 2.3 Sv to the south. The obtained northward and southward transports are significantly larger than earlier estimates in the literature; however, within its range of uncertainty the balance obtained from a two year average is consistent with earlier estimates.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 416 (2002), S. 832-837 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The overflow and descent of cold, dense water from the sills of the Denmark Strait and the Faroe–Shetland channel into the North Atlantic Ocean is the principal means of ventilating the deep oceans, and is therefore a key element of the global thermohaline circulation. Most computer ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Ocean dynamics 34 (1981), S. 41-55 
    ISSN: 1616-7228
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Anhand der hydrographischen Daten und der Strömungsmessungen, die während der Expedition Overflow '73 durchgeführt wurden, werden die bisherigen Vorstellungen zur Zirkulation und zum Massentransport im Färöer-Shetland- und im Färöer-Bank-Kanal überarbeitet. Der Einstrom von atlantischem Wasser in die Norwegische See und der Ausstrom von Tiefenwasser in den Atlantik entsprechen mit 2,0 bzw. 1,1×106 m3 s−1 den klassischen Vorstellungen. Eine Komplizierung ergibt sich durch die Beobachtung, daß von dem modifizierten atlantischen Wasser und von dem arktischen Zwischenwasser, die mit 2,5 bzw. 1,1×106 m3 s−1 von Norden her in den Färöer-Shetland-Kanal eindringen, nur 1,2 bzw. 0,3×106 m3 s−1 durch den Färöer-Bank-Kanal in den Atlantik gelangen. Die verbleibenden Wassermassen rezirkulieren in die Norwegische See, wobei eine barokline Instabilität des über dem Shetland-Kontinentalabfall einströmenden atlantischen Wassers als Ursache vermutet wird.
    Abstract: Résumé Sur la base des données hydrographiques et des mesures de courant obtenues pendant la campagne Overflow '73 la conception de la circulation et des transports dans les canaux de Féroé-Shetland et Banc de Féroé a été révisée. On a trouvé que l'écoulement de l'eau de l'Atlantique Nord dans la Mer de Norvège s'élevait à 2,0×106 m3 s−1; l'écoulement de l'eau profonde de la Mer de Norvège dans l'Atlantique Nord était 1,1×106 m3 s−1. La complexité du système de circulation est due à la pénétration du nord de l'eau de l'Atlantique Nord modifiée (2,5×106 m3 s−1) et de l'eau arctique intermédiaire (1,1×106 m3 s−1) dans le canal de Féroé-Shetland et de Banc de Féroé. On a observé que seulement 1,2 et 0,3×106 m3 s−1 respectivement de cette masse d'eau ont passé par le canal de Banc de Féroé dans l'Atlantique, pendant que le reste a recirculé dans la Mer de Norvège. On suppose que cette recirculation a été causée par l'instabilité barocline de l'eau de l'Atlantique Nord coulant par-dessus le talus de Shetland.
    Notes: Summary Hydrographic data and current measurements obtained during the Overflow '73-expedition were combined into a revised scheme of the circulation and the transports in the Faroese Channels. The inflow of North Atlantic water into the Norwegian Sea was found to be 2.0×106 m3 s−1, whereas the outflow of Norwegian Sea deep water amounted to 1.1×106 m3 s−1. The complexity of the circulation scheme was caused by a Modified North Atlantic water and by Arctic Intermediate water, which entered the Channels from the north with a volume transport of 2.5 and 1.1×106 m3 s−1 respectively. Only part of this (1.2 and 0.3×106 m3 s−1) was observed to pass the Faroe-Bank Channel into the Atlantic, whereas the remainder recirculated into the Norwegian Sea. Baroclinic instability of the inflowing North Atlantic water above the Shetland slope area is suspected to cause the recirculation.
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  • 4
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    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/pdf
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