Some controls on flow and salinity in Bering Strait

Details Some controls on flow and salinity in Bering Strait Some controls on flow and salinity in Bering Strait

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3319602a&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 19, CiteID L19602

Physics

12

Global Change: Sea Level Change (1222, 1225, 4556), Oceanography: General: Arctic And Antarctic Oceanography (9310, 9315), Oceanography: General: Climate And Interannual Variability (1616, 1635, 3305, 3309, 4513), Oceanography: General: Diurnal, Seasonal, And Annual Cycles (0438), Oceanography: Physical: Sea Level: Variations And Mean (1222, 1225, 1641)

Scientific paper

During 1993-1994, steric forcing of flow through Bering Strait represented a northward sea level drop of ~0.7 m from the Bering Sea Basin to the adjacent deep Arctic Ocean, of which ~2/3 was due to the salinity difference between the basins. Seasonal variability of steric forcing appears small (<0.05 m), in contrast to large seasonal wind effects. Interannual changes in steric forcing may exceed 20%, however, and warm inflow from the North Atlantic, accumulation of freshwater in the southwest Canada Basin, and temperature and salinity changes in the upper Bering Sea have all contributed to recent changes. The mean salinity balance in Bering Strait is primarily maintained by large runoff to the Bering shelf, dilute coastal inflow from the Gulf of Alaska, and on-shelf movement of saline and nutrient-rich oceanic waters from the Bering Sea Basin. In Bering Strait, therefore, both the throughflow and its salinity are affected by remote events.

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