MOMENT MODEL OF THE DYNAMICS OF A BAROTRO PIC VORTEX OVER A MARINE TRENCH (RIDGE) OF RECTANGULAR SECTION

Authors
KOZLOV VF GURULEV AY
Citation
Vf. Kozlov et Ay. Gurulev, MOMENT MODEL OF THE DYNAMICS OF A BAROTRO PIC VORTEX OVER A MARINE TRENCH (RIDGE) OF RECTANGULAR SECTION, Izvestia Akademii nauk. Rossijskaa akademia nauk. Fizika atmosfery iokeana, 33(6), 1997, pp. 837-844
Citations number
17
Categorie Soggetti
Metereology & Atmospheric Sciences",Oceanografhy
Journal title
Izvestia Akademii nauk. Rossijskaa akademia nauk. Fizika atmosfery iokeana → ACNP
ISSN journal
10236317
Volume
33
Issue
6
Year of publication
1997
Pages
837 - 844
Database
ISI
SICI code
1023-6317(1997)33:6<837:MMOTDO>2.0.ZU;2-8
Abstract
In the nondivergent barotropic approximation, a moment model is constr ucted for the dynamics of an elliptic vortex patch in a background flo w with a uniform potential vorticity over a marine trench or ridge of rectangular section. With Green's function constructed, explicit expre ssions are obtained for the velocity of the vortex center and the rate of shear strain induced by bottom breaks. Integrals of dynamic equati ons are found and possible stationary states of the vortex are studied depending on the center location, parameters of the ellipse, and dept h difference.