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Volume 3, issue 3
Ocean Sci., 3, 411–416, 2007
https://doi.org/10.5194/os-3-411-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Ocean Sci., 3, 411–416, 2007
https://doi.org/10.5194/os-3-411-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  24 Sep 2007

24 Sep 2007

Atmospheric forcing of salinity in the overflow of Denmark Strait

J. Holfort1,* and T. Albrecht2 J. Holfort and T. Albrecht
  • 1Institut für Meereskunde der Universität Hamburg, Hamburg, Germany
  • 2Deutsche Marine, Zerstörerflottille, Wilhelmshaven, Germany
  • *present adress: BSH, Rostock, Germany

Abstract. The temporal evolution of the characteristics of Denmark Strait Overflow Water (DSOW) is reconstructed using hydrographic data and compared with possible atmospheric forcing mechanisms. It is concluded that the main factor influencing the DSOW characteristics at a time scale of one to several years is the difference in mean sea level pressure across Denmark Strait or, in other words, the wind along Denmark Strait. At these time scales upstream changes in the characteristics of the different water masses involved in the formation of DSOW are only of minor importance. The main process responsible for the observed salinity changes in the DSOW is mixing in Denmark Strait. Triggered by the wind, different water masses contribute with changing amounts to the formation of DSOW, leading to the observed changes in the salinity of DSOW.

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