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contributor authorIvchenko, V. O.
contributor authorZalesny, V. B.
contributor authorSinha, B.
date accessioned2019-09-19T10:02:49Z
date available2019-09-19T10:02:49Z
date copyright6/4/2018 12:00:00 AM
date issued2018
identifier otherjpo-d-17-0229.1.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4260942
description abstractAbstractThe question of whether the coefficient of diffusivity of potential vorticity by mesoscale eddies is positive is studied for a zonally reentrant barotropic channel using the quasigeostrophic approach. The topography is limited to the first mode in the meridional direction but is unlimited in the zonal direction. We derive an analytic solution for the stationary (time independent) solution. New terms associated with parameterized eddy fluxes of potential vorticity appear both in the equations for the mean zonal momentum balance and in the kinetic energy balance. These terms are linked with the topographic form stress exerted by parameterized eddies. It is demonstrated that in regimes with zonal flow (analogous to the Antarctic Circumpolar Current), the coefficient of eddy potential vorticity diffusivity must be positive.
publisherAmerican Meteorological Society
titleIs the Coefficient of Eddy Potential Vorticity Diffusion Positive? Part I: Barotropic Zonal Channel
typeJournal Paper
journal volume48
journal issue7
journal titleJournal of Physical Oceanography
identifier doi10.1175/JPO-D-17-0229.1
journal fristpage1589
journal lastpage1607
treeJournal of Physical Oceanography:;2018:;volume 048:;issue 007
contenttypeFulltext


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