GFDL Lunchtime Seminar

Wed, Feb 13, 2019, 12:00 pm to 1:00 pm

Large-scale currents and eddies pervade the ocean and play a prime role in the general circulation and climate. The coupling between scales ranging from $O(10^4)$ km down to $O(1)$ mm presents a major difficulty in understanding, modeling, and predicting oceanic circulation and mixing, where our constraints on the energy budget suffer from large uncertainties. To this end, we have developed a coarse-graining (or filtering) framework for analyzing the multi-scale dynamics on the sphere. This is made possible by ensuring that our filtering operators and spatial derivatives on the sphere commute, thereby allowing us to derive the PDEs governing any sets of scales. I will demonstrate the application of this framework to satellite altimetry data and to strongly eddying high-resolution simulations using General Circulation Models.

Location: 
Smagorinsky Seminar Room 209
Speaker(s): 

GFDL Lunchtime Seminar

Wed, Dec 19, 2018, 12:00 pm to 1:00 pm
Location: Smagorinsky Seminar Room 209

GFDL Winter 2019 Poster Expo

Wed, Jan 30, 2019, 1:00 pm to 4:00 pm
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GFDL Lunchtime Seminar

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Location: Smagorinsky Seminar Room 209

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