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  • 1
    Electronic Resource
    Electronic Resource
    Surprisingly rapid spreading of newly formed intermediate waters across the North Atlantic Ocean (1997)
    [s.l.] : Nature Publishing Group
    Nature 386 (1997), S. 675-679 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Ocean temperature, salinity and chlorofluorocarbon concentration data are used to track the recent spreading of cold intermediate-depth water masses from the Labrador Sea across the northern North Atlantic Ocean. These water masses, which are formed from surface waters by deep convection in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/386675a0
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    Paper (German National Licenses)
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  • 2
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    Possible predictability in overflow from the Denmark Strait (1999)
    Nature Publishing Group
    In:  Nature, 397 . pp. 243-246.
    Details
    Publication Date: 2017-02-28
    Description: The overflow and descent of cold dense water from the Denmark Strait sill-a submarine passage between Greenland and Iceland-is a principal means by which the deep ocean is ventilated, and is an important element in the global thermohaline circulation. Previous investigations of its variability-in particular, direct current measurements(1,2) in the overflow core since 1986-have shown surprisingly little evidence of long-term changes in now speed. Here we report significant changes in the overflow characteristics during the winter of 1996-97, measured using two current-meter moorings and an inverted echo sounder located at different depths in the fastest part of the now. The overflow warmed to the highest monthly value yet recorded (2.4 degrees C), and showed a pronounced slowing and thinning at its lower margin. We believe that the extreme warmth of the overflow caused it to run higher on the continental slope off east Greenland, so that the lower current meters and the echo sounder were temporarily outside and deeper than the fast-flowing core; model simulations appear to confirm this interpretation, We suggest that the extreme warmth of the overflow is a lagged response to a warming upstream in the Fram Strait three years earlier (caused by an exceptional amplification of the winter North Atlantic Oscillation). If this is so, over-now characteristics may be predictable.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1038/16680
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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