PhD comprehensive exam | Ben Storer, The Stability Characteristics of Large-Scale Oceanic Waves and VorticesExport this event to calendar

Friday, May 22, 2015 — 10:00 AM EDT

MC 6496

Candidate

Ben Storer , Applied Mathematics, University of Waterloo

Title

The Stability Characteristics of Large-Scale Oceanic Waves and Vortices

Abstract

The world's oceans are dynamically rich systems with active features existing on an extraordinary range of spatial and temporal scales. In the context of large-scale features, two prominent and seemingly ubiquitous formations are large oceanic waves and vortices. 

For many years, persistent zonal jet structures have been observed in the major oceans, and recent studies have proposed that the destabilization of various ocean waves are capable of producing similar jet features. Early work on the study of large-scale equatorial waves is presented, and a direction for future work is discussed.

Oceanic vortices are capable of transporting physical and biogeochemical elements, and recent applications of seismic measurement techniques have provided high resolution measurements of observed large-scale eddies. Through stability analysis, the nature of vortex instabilities can be studied and may provide implications regarding property transport. A time-stepping method for linear stability analysis is presented and applications in quasi-geostrophy are considered.

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