English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/15531
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Three-dimensional mesoscale dipole frontal collisions

AuthorsDubosq, Sara ; Viúdez, Álvaro
Issue DateSep-2007
PublisherAmerican Meteorological Society
Allen Press
CitationJournal of Physical Oceanography 37(9): 2331-2344 (2007)
AbstractFrontal collisions of mesoscale baroclinic dipoles are numerically investigated using a three-dimensional, Boussinesq, and f-plane numerical model that explicitly conserves potential vorticity on isopycnals. The initial conditions, obtained using the potential vorticity initialization approach, consist of twin baroclinic dipoles, balanced (void of waves) and static and inertially stable, moving in opposite directions. The dipoles may collide in a close-to-axial way (cyclone–anticyclone collisions) or nonaxially (cyclone–cyclone or anticyclone–anticyclone collisions). The results show that the interacting vortices may bounce back and interchange partners, may merge reaching a tripole state, or may squeeze between the outer vortices. The formation of a stable tripole from two colliding dipoles is possible but is dependent on diffusion effects. It is found that the nonaxial dipole collisions can be characterized by the interchange between the domain-averaged potential and kinetic energy. Dipole collisions in two-dimensional flow display also a variety of vortex interactions, qualitatively similar to the three-dimensional cases.
Description14 pages, 19 figures, 1 table.-- Full-text version available Open Access at: http://www.icm.csic.es/files/oce/almacen/papers/AR-2007-15.pdf
Publisher version (URL)http://dx.doi.org/10.1175/JPO3105.1
Appears in Collections:(ICM) Artículos
Files in This Item:
File Description SizeFormat 
Dubosq_et_al_2007.pdf2,39 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.