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Mesoscale processes

Global mesoscale surface currents. Credits CTOH

Mesoscale processes include ocean eddies or isolated vortices, meandering currents or fronts, squirts and filaments. The mesoscale variability generally refers to ocean signals with space scales of 50-500 km and time scales of 10-100 days. Here we present an overview of research activities at the CTOH which help improve our understanding of mesoscale processes in the ocean. To this end, CTOH develops specific altimetric mesoscale products and techniques, and provide a brief description of their applications.

What are Mesoscale Processes ?
Here, CTOH presents a general description of mesoscale processes observed by altimetry.
Method for tracking eddies
A technique developped at the CTOH, in collaboration with the CSIRO, Australia, to track mesoscale eddies.
Global mesoscale surface currents
Description and access to the CTOH global surface current product.
Weekly position of two Southern Ocean fronts
Description and access to the CTOH Southern Ocean Fronts product.
Lateral eddy diffusion coef
Description and access to the CTOH lateral surface eddy diffusion coefficient matrix in the Southern Ocean.
Climatology near-inertial currents
Description and access to global climatology of near-inertial current characteristics from satellite-tracked drifters.
Scientific results
Science publications on mesoscale processes.
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