This paper provides a theoretical background for Lagrangian Descriptors (LDs). The goal of
achieving rigorous proofs that justify the ability of LDs to detect invariant manifolds is …

Coherent Lagrangian (material) structures are ubiquitous in unsteady fluid flows, often
observable indirectly from tracer patterns they create, for example, in the atmosphere and …

Short-term variability in material structures is often seen as significant in unsteady flows.
Such variability is of prime interest in many fields ranging from flow control to environmental …

Transport by Lagrangian Vortices in the Eastern Pacific in: Journal of Physical Oceanography
Volume 48 Issue 3 (2018) Jump to Content Jump to Main Navigation Logo Logo Logo Logo …

We seek transport barriers and transport enhancers as material surfaces across which the
transport of diffusive tracers is minimal or maximal in a general, unsteady flow. We find that …

Deformation flows are the flows incorporating shear, strain and rotational components.
These flows are ubiquitous in the geophysical flows, such as the ocean and atmosphere …

We derive measures of local material stretching and rotation that are computable from
individual trajectories without reliance on other trajectories or on an underlying velocity field …

Several procedures have been proposed to modify non-objective (observer-dependent)
local vortex criteria so that they become objective. These modifications are only justifiable if …

We present a spatially and temporally highly resolved flow measurement covering a large
volume (~ 0.6 m 3) in a pure thermal plume in air. The thermal plume develops above an …

An idealized eddy‐resolving ocean basin, closely resembling the North Pacific Ocean, is
simulated using MITgcm. We identify rotationally coherent Lagrangian vortices (RCLVs) and …