Bering Strait throughflow and the thermohaline circulation

In this study, we employ a global coupled climate model to show that the Bering Strait is important to the variations of the thermohaline circulation. Three experiments are analyzed, a present day control run, and two freshwater hosing runs. Results show that as the thermohaline circulation weakens due to freshwater forcing in the northern North Atlantic, the Bering Strait throughflow weakens, and even reverses its direction, and the export of the Arctic freshwater into the northern North Atlantic is reduced, or the Arctic even takes freshwater from the latter, thus helping the thermohaline circulation to recover relatively quickly after the end of the freshwater hosing.

[1]  Andrei P. Sokolov,et al.  Investigating the Causes of the Response of the Thermohaline Circulation to Past and Future Climate Changes , 2006 .

[2]  Andrei P. Sokolov,et al.  A model intercomparison of changes in the Atlantic thermohaline circulation in response to increasing atmospheric CO2 concentration , 2005 .

[3]  Thomas J. Weingartner,et al.  Monthly temperature, salinity, and transport variability of the Bering Strait through flow , 2005 .

[4]  D. Nof,et al.  The Bering Strait's grip on the northern hemisphere climate , 2004 .

[5]  G. Danabasoglu,et al.  The Community Climate System Model Version 4 , 2011 .

[6]  D. Nof,et al.  The Exhaust Valve of the North Atlantic , 2004 .

[7]  D. Leverington,et al.  Superlakes, Megafloods, and Abrupt Climate Change , 2003, Science.

[8]  D. Seidov,et al.  Freshwater teleconnections and ocean thermohaline circulation , 2003 .

[9]  E. Bard,et al.  Climate Shock: Abrupt Changes over Millennial Time Scales , 2002 .

[10]  G. Bigg,et al.  Impact of flow through the Canadian Archipelago and Bering Strait on the North Atlantic and Arctic circulation: An ocean modelling study , 2002 .

[11]  Peter U. Clark,et al.  The role of the thermohaline circulation in abrupt climate change , 2002, Nature.

[12]  S. Rahmstorf.  Decadal Variability of the Thermohaline Ocean Circulation , 1999 .

[13]  T. Fichefet,et al.  Sensitivity of a global ice–ocean model to the Bering Strait throughflow , 1997 .

[14]  D. Seidov,et al.  North Atlantic ocean circulation during the last glacial maximum and subsequent meltwater event: A numerical model , 1996 .

[15]  Stefan Rahmstorf,et al.  Stability of the thermohaline circulation , 1996 .

[16]  M. Maslin,et al.  Variations in Atlantic surface ocean paleoceanography, 50°-80°N: A time-slice record of the last 30,000 years , 1995 .

[17]  C. Reason,et al.  The influence of the Bering Strait on the circulation in a coarse resolution global ocean model , 1994 .

[18]  R. Schmitt,et al.  The Goldsbrough–Stommel Circulation of the World Oceans , 1993 .

[19]  R. Schmitt,et al.  Transport of freshwater by the oceans , 1992 .

[20]  E. Carmack,et al.  The role of sea ice and other fresh water in the Arctic circulation , 1989 .

[21]  L. Talley,et al.  Warm-to-Cold Water Conversion in the Northern North Atlantic Ocean , 1984 .