December 18, 2018: FB1 seminar

Tuesday, 18 Dec 2018 -- 11:00, Lecture Hall, Düsternbrooker Weg 20

Abstract:

Direct measurements of submesoscale lateral dispersion in the ocean pycnocline have repeatedly yielded estimates of K_h that are difficult to explain using existing theoretical models. Numerous mechanisms have been hypothesized to explain the observations, but definitive evidence of the dominance of any single mechanism remains elusive. Recent observational and theoretical results have shed new light on both old and new ideas, and provide new opportunities understand the underlying processes. Recent advances in numerical approaches have also enabled deeper examination of the underlying processes, enabling us to isolate the effects of different mechanisms. This talk will present a progress update on our observational, theoretical, and numerical understanding of submesoscale dispersion by internal waves and vortical mode using examples from recent dye release experiments as well as ongoing numerical simulations of dye dispersion driven by internal waves and vortical mode.

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