Halocline structure in the Canada Basin of the Arctic Ocean

Details Halocline structure in the Canada Basin of the Arctic Ocean Halocline structure in the Canada Basin of the Arctic Ocean

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3203605s&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 3, CiteID L03605

Physics

20

Oceanography: General: Water Masses, Oceanography: General: Arctic And Antarctic Oceanography (9310, 9315), Oceanography: General: Continental Shelf And Slope Processes (3002), Oceanography: General: Physical And Chemical Properties Of Seawater, Oceanography: Physical: General Circulation (1218, 1222)

Scientific paper

We examine the varieties and spatial distributions of Pacific and Eastern Arctic origin halocline waters in the Canada Basin using 2002-2003 hydrographic data. The halocline structure in the Canada Basin is different from the Eastern Arctic halocline because it includes fresher Pacific Winter Waters that form a ``cold halostad'' which lies above the Eastern Arctic origin lower halocline waters. The structure of the halostad in the Canada Basin, however, is not spatially uniform, and depends on the pathway and history of the source water. Pacific Winter Water entering through the Bering Strait becomes salty due to sea ice formation and this, in turn, is dependent on the occurrence and distribution of polynyas. In particular, saline water from the eastern Chukchi Sea forms thick halostad and causes depression of the isohalines in the southern Canada Basin. This depression influences thermohaline structure of the oceanic Beaufort Gyre.

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