The dependence of AABW transport in the Atlantic on vertical diffusivity

Details The dependence of AABW transport in the Atlantic on vertical diffusivity The dependence of AABW transport in the Atlantic on vertical diffusivity

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3739k&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 22, p. 3739-3742

Physics

8

Oceanography: General: Analytical Modeling, Oceanography: General: Numerical Modeling, Oceanography: General: Water Masses, Oceanography: Physical: General Circulation

Scientific paper

Simple theoretical arguments are employed to study the dependence of the volume and transport of the Antarctic Bottom Water (AABW) in the Atlantic Ocean on the vertical diffusivity. We have found that while the vertical extent of the AABW cell decreases with the intensification and deepening of the North Atlantic overturning cell, the transport of AABW into the Atlantic increases. The latter fact is explained by the increase in the deep meridional pressure gradient, which drives the flow. An estimate of the AABW transport is then derived from the density balance in the deep western boundary layer.

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