The physics of wind-blown sand and dust

JF Kok, EJR Parteli, TI Michaels… - Reports on progress in …, 2012 - iopscience.iop.org
The transport of sand and dust by wind is a potent erosional force, creates sand dunes and
ripples, and loads the atmosphere with suspended dust aerosols. This paper presents an …

The physics of wind-blown loess: Implications for grain size proxy interpretations in Quaternary paleoclimate studies

G Újvári, JF Kok, G Varga, J Kovács - Earth-Science Reviews, 2016 - Elsevier
Loess deposits are recorders of aeolian activity during past glaciations. Since the size
distribution of loess deposits depends on distance to the dust source, and environmental …

A comprehensive numerical model of steady state saltation (COMSALT)

JF Kok, NO Renno - Journal of Geophysical Research …, 2009 - Wiley Online Library
The blowing of sand by wind, known as saltation, ejects dust aerosols into the atmosphere,
creates sand dunes, and erodes geological features. We present a comprehensive …

On aeolian transport: Grain-scale interactions, dynamical mechanisms and scaling laws

O Durán, P Claudin, B Andreotti - Aeolian Research, 2011 - Elsevier
Aeolian processes involve the wind action on a sedimentary substrate, namely erosion,
sand transport and deposition. They are responsible for the emergence of aeolian dunes …

Wind-invariant saltation heights imply linear scaling of aeolian saltation flux with shear stress

RL Martin, JF Kok - Science advances, 2017 - science.org
Wind-driven sand transport generates atmospheric dust, forms dunes, and sculpts
landscapes. However, it remains unclear how the flux of particles in aeolian saltation—the …

Numerical simulation of turbulent sediment transport, from bed load to saltation

O Durán, B Andreotti, P Claudin - Physics of Fluids, 2012 - pubs.aip.org
Sediment transport is studied as a function of the grain to fluid density ratio using two phase
numerical simulations based on a discrete element method for particles coupled to a …

Scaling laws in aeolian sand transport

TD Ho, A Valance, P Dupont, A Ould El Moctar - Physical Review Letters, 2011 - APS
We report on wind tunnel measurements on saltating particles in a turbulent boundary layer
and provide evidence that over an erodible bed the particle velocity in the saltation layer and …

Difference in the Wind Speeds Required for Initiation versus Continuation of Sand Transport<? format?> on Mars: Implications for Dunes and Dust Storms

JF Kok - Physical Review Letters, 2010 - APS
Much of the surface of Mars is covered by dunes, ripples, and other features formed by the
blowing of sand by wind, known as saltation. In addition, saltation loads the atmosphere with …

Modeling saltation intermittency

S Dupont, G Bergametti, B Marticorena… - Journal of …, 2013 - Wiley Online Library
In order to investigate the intermittency of the aeolian saltation, a saltation model, forced with
instantaneous velocity fields, has been introduced in a Large Eddy Simulation airflow model …

An improved parameterization of wind‐blown sand flux on Mars that includes the effect of hysteresis

JF Kok - Geophysical Research Letters, 2010 - Wiley Online Library
Saltation, the wind‐driven hopping motion of sand grains, forms dunes and ripples, and
ejects fine dust particles into the atmosphere on Mars. Although the wind speed at which …