Physics
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.4147s&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 21, p. 4147-4150
Physics
10
Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: General: Numerical Modeling, Oceanography: General: Water Masses, Oceanography: Physical: Ice Mechanics And Air/Sea/Ice Exchange Processes
Scientific paper
An ocean-atmosphere-sea ice model is used to show the importance of wind-driven sea ice motion in the formation of Antarctic Intermediate Water (AAIW). The model is able to reasonably simulate a tongue of low salinity AAIW even when the direct momentum transfer from wind to the ocean is neglected, provided that the wind stress is applied to sea ice. In contrast, when the wind stress exclusively drives the ocean, the model fails to capture the properties of AAIW. The growth and subsequent offshore transport of sea ice acts as a freshwater conduit from nearshore regions, where AABW is formed, to subpolar regions, where AAIW is formed. Sea ice dynamics are also shown to be important in the simulation of a local salinity minimum at intermediate depths in the southern Indian Ocean and a local salinity maximum in the western Weddell Sea.
Saenko Oleg A.
Weaver Andrew J.
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