Increasing amount of Arctic Ocean deep waters in the Greenland Sea
R. Somavilla, U. Schauer and G. Budéus
Abstract
In the last three decades, deep convection has come to a halt in the
Greenland Sea. Hydrographic data reveal that during this period,
temperature and salinity in the deep Greenland Sea have increased at
mean rates without precedent in the last 100 years, and these trends are
among the highest in the global deep ocean. The origin of these changes
is identified as the advection of Arctic Ocean deep waters and the
necessary transports to explain them are calculated (0.44 ± 0.09 Sv).
Despite the fact that the deep Greenland Sea hardly covers 0.05% of the
global surface, the resulting trends constitute 0.3% of the World Ocean
heat content increase per unit area of earth's surface and 0.1% of the
global sea level rise. These results suggest that changes of the deep
Arctic Mediterranean and their contribution to the global budgets need
to be addressed.
onlinelibrary.wiley.com/doi/10.1002/grl.50775/abstract;jsessionid=9F7D5062A1B88E7508F283F8A24BDE00.d03t04
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