The well-known ratio between sand ripple spacing and wave-driven flow oscillations may be dictated by flow dynamics downstream of ripple crests.
Journal of Geophysical Research: Earth Surface
Posted inResearch Spotlights
Caterpillar-Like Motion of the Greenland Ice Sheet
New measurements made in Greenland’s ice sheet show ice deformation in a caterpillar-like flow.
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Exploring How Water Flow Affects Bed Forms in Different Environments
In a flat sand bed, water creates undulating features.
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Hillslopes Regulate Sediment Supply to River Channels
New study rethinks dynamics of runoff-driven erosion in response to rainstorms.
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Modeling Sand Grains in Water
Scientist creates a numerical model that explores sediment transport.
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Comparing Models for Soil Erosion Due to Wind
Researchers investigate the impact of vegetation on erosion.
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Using Rivers to Investigate Rock Uplift in Taiwan
Researchers use change of slope in a dense river network to investigate rock uplift rates of Taiwan.
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Silk Insect Nets Can Reshape Creek Beds
Colonies of tiny caddisflies slow stream sediment transport with their silk nets.
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River Slope Connects Modern Topography with Ancient Tectonics
Scientists create models to help them figure out how the slope of a river can record ancient tectonic activity.
Posted inResearch Spotlights
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.