A rich body of knowledge links biodiversity to ecosystem functioning (BEF), but it is primarily
focused on small scales. We review the current theory and identify six expectations for scale …

Mesoscale ocean eddies are ubiquitous coherent rotating structures of water with radial
scales on the order of 100 kilometers. Eddies play a key role in the transport and mixing of …

One of the ubiquitous features of real-life turbulent flows is the existence and persistence of
coherent vortices. Here we show that such coherent vortices can be extracted as clusters of …

We introduce a new approach to locating key material transport barriers in two-dimensional,
non-autonomous dynamical systems, such as unsteady planar fluid flows. Seeking transport …

We investigate the temporal scaling properties of mixing in heterogeneous permeability
fields with variances ranging from very small (σlnK2= 0.01) to very large (σlnK2= 9). We …

Environmental fluid mechanics underlies a wealth of natural, industrial, and, by extension,
societal challenges. In the coming decades, as we strive towards a more sustainable planet …

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 …

Scalar mixing plays a significant role for transport in geophysical flows because it controls
dilution and is a main driver for many chemical reactions. Here we study the local scale flow …

Currents, wind, bathymetry, and freshwater runoff are some of the factors that make coastal
waters heterogeneous, patchy, and scientifically interesting—where it is challenging to …

Cilia are widely employed by living systems to manipulate fluid flow in various functions,
such as feeding, pumping, and locomotion. Mimicking the intricate ciliary asymmetry in …