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Record #187285:

A Greenland Sea perspective on the dynamics of postconvective eddies / K.I.C. Oliver, and 3 others.

Title: A Greenland Sea perspective on the dynamics of postconvective eddies / K.I.C. Oliver, and 3 others.
Author(s): Oliver, K. I. C.
Date: 2008.
In: Journal of Physical Oceanography. (2008.), Vol. 38(12) (2008)
Abstract: Investigates key postconvective processes using numerical experiments of increasing sophistication with two goals: to understand how ambient hydrography and topography influence propagation of hetons (dipoles consisting of surface cyclone and weakly stratified subsurface anticyclone); and to provide theoretical context for recent observations of submesoscale coherent vortices in Greenland Sea. Finds that alignment of hetons is controlled by ambient horizontal density gradients and that hetons self-propagate into lighter waters. This provides mechanism for transporting convected water out of cyclonic gyre, but propagation is arrested if heton meets large-amplitude topography.
Notes:

Journal of Physical Oceanography. Vol. 38(12) :2755-2771 (2008).

Keywords: 551.46 -- Oceanography, physical.
551.463.6 -- Sea water, thermal properties and heat flux.
551.465 -- Oceanography, dynamics.
551.465.15 -- Turbulence and eddies.
C -- Oceanography, hydrography and hydrology.
(*3) -- Arctic regions.
(*61) -- North Atlantic Ocean.
(*617) -- Greenland Sea and Fram Strait.
SPRI record no.: 187285

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245 12 ‡aA Greenland Sea perspective on the dynamics of postconvective eddies /‡cK.I.C. Oliver, and 3 others.
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300 ## ‡ap. 2755-2771 :‡bill., diags., maps.
500 ## ‡aJournal of Physical Oceanography. Vol. 38(12) :2755-2771 (2008).
520 3# ‡aInvestigates key postconvective processes using numerical experiments of increasing sophistication with two goals: to understand how ambient hydrography and topography influence propagation of hetons (dipoles consisting of surface cyclone and weakly stratified subsurface anticyclone); and to provide theoretical context for recent observations of submesoscale coherent vortices in Greenland Sea. Finds that alignment of hetons is controlled by ambient horizontal density gradients and that hetons self-propagate into lighter waters. This provides mechanism for transporting convected water out of cyclonic gyre, but propagation is arrested if heton meets large-amplitude topography.
530 ## ‡aAlso issued online ‡uurn:doi:10.1175/2008JPO3844.1‡uhttps://dx.doi.org/10.1175/2008JPO3844.1
650 07 ‡a551.46 -- Oceanography, physical.‡2udc
650 07 ‡a551.463.6 -- Sea water, thermal properties and heat flux.‡2udc
650 07 ‡a551.465 -- Oceanography, dynamics.‡2udc
650 07 ‡a551.465.15 -- Turbulence and eddies.‡2udc
650 07 ‡aC -- Oceanography, hydrography and hydrology.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*61) -- North Atlantic Ocean.‡2udc
651 #7 ‡a(*617) -- Greenland Sea and Fram Strait.‡2udc
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