2024-03-28T17:45:59Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/811422021-01-28T12:39:07Zcom_10261_123com_10261_8col_10261_376
Vertical splitting of vortices in geophysical dipoles
Viúdez, Álvaro
10 pages, 12 figures
The processes involved in the vertical splitting of vortices in geophysical dipoles, rotating and stably stratified, are investigated using a three-dimensional numerical model under the f-plane and Boussinesq approximations. Vertical splitting in asymmetric dipoles is possible when the vortices have a similar amount of potential vorticity but significantly differ in vertical extent. One representative case of vertical splitting is analyzed, and it is found that prior to the splitting there is a shearing period characterized by vertical un-alignment and loss of horizontal axisymmetrization. The splitting starts when the upper and lower parts of the deep vortex independently experience vertical alignment and horizontal axisymmetrization. Vertical splitting also involves vortex horizontal splitting in the intermediate layers, which might explain the vertical asym-metry found in some isolated subsurface vortices in the ocean interior
2013-08-30T06:33:29Z
2013-08-30T06:33:29Z
2010-09
2013-08-30T06:33:29Z
artículo
Journal of Physical Oceanography 40(9): 2170-2179 (2010)
http://hdl.handle.net/10261/81142
10.1175/2010JPO4418.1
eng
https://doi.org/10.1175/2010JPO4418.1
openAccess
American Meteorological Society