A new study shows how groundwater influences river dynamics and channel pattern.
Geomorphology: fluvial
Posted inResearch Spotlights
Mars’s Climate May Have Been Wet Much Later Than Thought
Water-carved valleys may be relatively young, challenging assumptions about the history of the Red Planet's climate.
Posted inResearch Spotlights
How Do Tropical Forests Slow Knickpoints in Rivers?
Using Puerto Rico's Luquillo Mountains as a case study, scientists use the region's geological history to study how knickpoints—areas where there's a sharp change in the river's slope—move over time.
Posted inResearch Spotlights
The Mathematics of Braided Rivers
River researchers find a mathematical relationship that predicts the average shape of a riverbed over a defined distance, opening the door to new ideas about modeling braided rivers.
Posted inResearch Spotlights
Plunging into Waterfall Sediment Transport Modeling
A first-of-its-kind model describes how pools at the base of waterfalls adjust their depth to keep up with sediment flow.
Posted inResearch Spotlights
Shape of Stream Channels Gives Clues to Sediment Size
The shape can also reveal information on the force required to carve sediment from its bank.
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How a River Gets Its Width
A new model of deposition and erosion on river banks allows scientists to study how the banks control their stream’s width.
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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.
Posted inResearch Spotlights
A Noninvasive Way to Study Groundwater-Dependent Ecosystems
Scientists used a noninvasive method to study the substructure of delicate groundwater-dependent ecosystems.
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.