Wind-blown sand creates multiscale bedforms on Earth, Mars and other planetary bodies.
According to conventional wisdom, decametre-scale dunes and decimetre-scale ripples …

Dunes form where winds blow over a bed of mobile sediment grains–conditions that are
common in our solar system. On Earth, dunes abound in arid continental interiors and along …

Crusted surfaces can be major sources of mineral dust emission. Quantitative understanding
of dust emission from crusted surfaces is limited, because (1) theories on dust emission are …

The present work examines the temporal evolution of dune number density in desert
barchan dune fields and the effects of wind velocity, particle diameter and sand supply …

Sand patches are one of the precursors to early stage protodunes and occur widely in both
desert and coastal aeolian environments. Here we show field evidence of a mechanism to …

The spatial coherence of turbulent flow structures throughout the flow field associated with a
collision between a smaller upstream barchan laterally offset from a larger downstream …

Crescent-shaped barchan dunes often display an asymmetric shape, with one limb longer
than the other. As shown in previous studies, asymmetric bimodal winds constitute one …

The present work employs a predictive model of fluctuating wind velocities constructed on
the basis of long-term field observations to perform trans-scale simulations of aeolian sand …

This paper presents high‐resolution field measurements of the wind and saltation fields
using miniphones and anemometers located 20–40 mm apart (bed‐parallel) and 10–40 mm …

In zones of loose sand, wind‐blown sand dunes emerge due the linear instability of a flat
sedimentary bed. This instability has been studied in experiments and numerical models but …