Veranstaltungen
Veranstaltungen der Fakultät für Mathematik
The effects of topography on the spin-up of stratified ocean models, als ans
Termin
21.12.2023, 14:00 Uhr - 16:00 Uhr
Veranstaltungsort
M 311
Abstract
Large-scale oceanic flows can often be described by quasi-geostrophic models. These are
applicable if the Rossby number is small, as is the case in the earths atmosphere and oceans.
Geostrophy means that the Coriolis force is balanced by the horizontal pressure gradient, thus
allowing for additional simplifications compared to the (hydrostatic) NavierStokes equations.
In this talk, I will illustrate the derivation of such systems, discuss the imposition of boundary
conditions and show preliminary numerical results based on global spectral methods. The
models and solvers we develop are interesting for a number of applications, in which the effects
of bottom topography have been neglected thus far. We hope to fill these gaps in the course
of this project. First, we plan to study how topography affects the spin-up of a stratified
ocean at rest, for which there is a theoretical foundation in the case of flat bottoms.
Vortragende(r)
Hennes Hajduk
Herkunft der/des Vortragenden
Section for Meteorology and Oceanography (MetOs), University of Oslo (UiO), Norway