Oceanic mesoscale eddies with typical sizes of 30-200 km contain more than half of the kinetic energy of the ocean. With an average lifespan of several months, they are major contributors to the transport of heat, nutrients, plankton, dissolved oxygen and carbon in the ocean. Mesoscale eddies have been observed and studied over the past 50 years, nonetheless our understanding of the details of ...

A concerted effort has been made to simulate the global ocean circulation with resolved eddies, using a highly optimized model on the best available supercomputer. An earlier 20-year spin-up has been extended for 12.5 additional years: the first 2.5 with continued annual mean forcing and the final 10.0 with climatological monthly forcing. Model output archived at 3-day intervals has been analyz...

Meridional transport variability induced by westward-propagating eddies impinging on the western boundary is investigated both analytically and numerically. A simple theory first developed in framework of reduced-gravity model which relates eddy-induced meridional to eddy thickness anomalies propagated into long Rossby waves, this followed a suite numerical experiments. It found that excite wav...

Parameterizations of the eddy-induced velocity that advects tracers in addition to the Eulerian mean flow are traditionally expressed as a downgradient Fickian diffusion of either isopycnal layer thickness or large-scale potential vorticity (PV). There is an ongoing debate on which of the two closures is better and how the spatial dependence of the eddy diffusivity should look like. To increase...

The substantial productivity of the northern Norwegian Sea is closely related to its strong mesoscale eddy activity, but how eddies affect phytoplankton biomass levels in upper ocean through horizontal and vertical transport-mixing has not been well quantified. To assess induced surface chlorophyll-a concentration (CHL) anomalies modulation eddy-wind interactions region, we constructed composit...

We deployed three replicate larval light traps off the upper Florida Keys from June–September 2001 to measure the delivery of settlement-stage fish larvae to the coral reefs. Nightly measures of larval abundance were compared to water temperatures measured across the outer reef, nearby wind records, and the alongshore and cross-shelf components of the currents measured at the seaward edge of th...

Cross-shelf exchanges in the Black Sea were investigated using remote sensing data and an ocean circulation model to which eddy-tracking algorithm Lagrangian particle tracking was applied. An anticyclonic eddy 1998 a cyclonic 2000 detail. Eddy-induced cross-shelf transport of low salinity high Chl-a waters reached maximum presence filaments associated with these eddies. The daily mean volume by...