PHYSICAL MATHEMATICS SEMINAR
TITLE: INTEGRAL EFFECTS OF EDDIES IN THE
LARGE SCALE OCEANIC FLOWS
SPEAKER: TIMOUR RADKO
EAPS, MIT
ABSTRACT:
We examine effects of the transient eddies for the dynamics of a stratified fluid forced
by the anticyclonic stress and heated at the surface. Analysis of several characteristic
large scale flows indicates that the buoyancy and potential vorticity budgets in the presence
of eddies is dominated by a balance between the vertical advection by Ekman pumping and
the eddy induced diapycnal fluxes. Resulting patterns of the statistically steady flow fields are
discussed in terms of a combination of numerical simulations and asymptotic analysis.
The importance of eddy buoyancy transfer in the western intensification region is emphasized
by developing a boundary layer theory based entirely on the cross-frontal mass exchange due to eddies.
TUESDAY, OCTOBER 22, 2002
2:30 pm
Building 2, Room 338
Refreshments will be served at 3:30 PM in Room 2-349
Massachusetts Institute of Technology
Department of Mathematics
Cambridge, MA 02139