Typical fluid particle trajectories are sensitive to changes in their initial conditions. This
makes the assessment of flow models and observations from individual tracer samples …

The motivation to study the vertical exchanges of tracers associated with mesoscale eddies
is that the mean concentration of most oceanic tracers changes rapidly with depth. Because …

Rotationally coherent Lagrangian vortices are formed by tubes of deforming fluid elements
that complete equal bulk material rotation relative to the mean rotation of the deforming fluid …

The most widely used definitions of a vortex are not objective: they identify different
structures as vortices in frames that rotate relative to each other. Yet a frame-independent …

We introduce a Lagrangian definition for the boundaries of coherent structures in two-
dimensional turbulence. The boundaries are defined as material lines that are linearly stable …

Much progress has been made on two-dimensional turbulence, these last two decades, but
still, a number of fundamental questions remain unanswered. The objective of the present …

Satellite observations of the last two decades have led to a major breakthrough emphasizing
the existence of a strongly energetic mesoscale turbulent eddy field in all the oceans. This …

Explanations for the patchy distribution of marine phytoplankton are critically reviewed with
the focus on the role played by lateral advection and mixing. Generating mechanisms for …

▪ Abstract This article reviews the transport properties of coherent vortices in rotating
barotropic flows. It is shown that vortices induce regular Lagrangian motion inside their …

Vortices are commonly understood as rotating motions in fluid flows. The analysis of vortices
plays an important role in numerous scientific applications, such as in engineering …