קולוקוויום בחוג לגאופיזיקה: Oceanic mixed-layer physics: what do we know and what remains to be uncovered?

Zoom: https://tau-ac-il.zoom.us/j/85032703038

Abstract:

The oceanic mixed-layer is the near surface layer that is in constant and direct influence by atmospheric forcing. To date, the underlying physical mechanisms that determine the mixed-layer depth and the associated vertical exchanges at its base remain poorly constrained. This poses one of the greatest uncertainties in climate projections since mixed-layer physics ultimately controls the ocean heat and Co2 uptake. The key ‘missing’ physics leading to these uncertainties is associated with small-scale and fast-evolving submesoscale currents (AKA ‘oceanic weather systems’). In this talk I will review some recent theoretical, numerical, and observational developments in the understanding of oceanic mixed-layer physics with an emphasis on submesoscale current dynamics, their interactions with the atmospheric induced boundary-layer turbulence, the associated cross-scale cascades, and their influence on material dispersion.

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מארגן האירוע: ד"ר ליאור רובננקו