A scaling law for aeolian dunes on Mars, Venus, Earth, and for subaqueous ripples

@article{Claudin2006ASL,
  title={A scaling law for aeolian dunes on Mars, Venus, Earth, and for subaqueous ripples},
  author={Philippe Claudin and Bruno Andreotti},
  journal={Earth and Planetary Science Letters},
  year={2006},
  volume={252},
  pages={30-44}
}
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References

SHOWING 1-10 OF 111 REFERENCES
Minimal model for aeolian sand dunes.
We present a minimal model for the formation and migration of aeolian sand dunes in unidirectional winds. It combines a perturbative description of the turbulent wind velocity field above the dune…
Flow effects on the morphology and dynamics of aeolian and subaqueous barchan dunes
[1] Barchans are aeolian sand dunes that form where unidirectional winds blow on firm ground with limited sand supply. Although they have been analyzed for decades, the difficulty of conducting…
Microdunes and other aeolian bedforms on Venus: Wind tunnel simulations
Morphology and distribution of common ‘sand’ dunes on Mars: Comparison with the Earth
Massed crescentic ridges are the most common dunes in the north circumpolar erg and crater floor dune fields on Mars; they are similar in plan to dunes that are typical of many desert basin ergs and…
A two-species model of aeolian sand transport
The transport of sand by wind results from the equilibrium between the erosion of grains dragged by the flow and the resulting slow down of the wind velocity. The dynamical mechanisms governing the…
Continuum saltation model for sand dunes.
TLDR
It is pointed out that saturation transients are indispensable for a proper description of sand flux over structured terrain, by applying the model to the windward side of an isolated dune, thereby resolving recently reported discrepancies between field measurements and theoretical predictions.
Simulation of Eolian Saltation
TLDR
The evolution of the saltating population and all its characteristic profiles is calculated from inception by pure aerodynamic entrainment through to steady state, and calculated steady state mass fluxes are within the range ofmass fluxes measured in wind tunnel experiments.
THE PARTICLE SIZE OF MARTIAN AEOLIAN DUNES
The effective particle size of unconsolidated materials on the Martian surface can be determined from thermal inertia, due to a pore size dependence of thermal conductivity at Martian atmospheric…
Fluid Transport on Earth and Aeolian Transport on Mars
Eolian ripples as examples of self-organization in geomorphological systems
...
...