IGPP Seminar Series

The transition from mesoscale to submesoscale in the California Current System

by Dr. Xavier Capet
IGPP, UCLA

Abstract

There are increasing evidences of an abundant submesoscale activity in the ocean whether eddy-like (eg., spiral eddies) or thermohaline fronts at kilometer scale. Because of its energetic dynamics driven by coastal upwelling, the California Current System (CCS) is a place of choice to investigate the mecanisms involved in submesoscale generation as well as the impact submesoscale activity has on regional dynamics. We will report on a set of idealized CCS solutions that differ from each other by their horizontal resolution. By going to resolutions as high as as 750m and computing the solutions over time periods of one year or more, we statistically demonstrate the importance of oceanic frontogenesis for submesoscale activity generation. Consequences of the submesoscale activity on upper ocean energy transfer and heat budget are also discussed.
Tuesday, 24 January 2006
3845 Slichter Hall
Refreshments at 3:45 PM
Lecture at 4:00 PM