The effects of climate change could fuel a new sand mining industry in Greenland.
sand
A Rover’s Eye View of Moving Martian Dunes
A new special issue of JGR: Planets presents findings on sand motion, morphology, and mineralogy from the Curiosity rover’s traverse of the active Bagnold dune field in Gale crater.
Curiosity Spies Shifting Sands on Mars
Images from the rover’s pioneering encounter with sand dunes on Mars constrain wind speeds required to move sand in the thin Martian atmosphere.
Boulders Limit Transport of Sand and Gravel in Steep Rivers
Mountain rivers and streams actively reshape landscapes by eroding material from uplands and depositing it in lowlands. Scientists can now predict this transport in very steep streams.
Building Sandbars in the Grand Canyon
Annual controlled floods from one of America's largest dams are rebuilding the sandbars of the iconic Colorado River.
Exploring How Wind Blows Sand on Dunes
Sand dunes migrate—so why haven’t some budged in 60 years?
Wave Ripples Spaced by Flow Downstream of Ripple Peaks
The well-known ratio between sand ripple spacing and wave-driven flow oscillations may be dictated by flow dynamics downstream of ripple crests.
Exploring How Water Flow Affects Bed Forms in Different Environments
In a flat sand bed, water creates undulating features.
Modeling Sand Grains in Water
Scientist creates a numerical model that explores sediment transport.
Where Does the Bed of a River Change from Gravel to Sand?
Analysis of the Fraser River suggests that riverbed sediments shift abruptly depending on river slope changes and water speed.