New research provides a theoretical explanation of channel cross section geometry dependence on flow rate that is commonly observed and described with power-laws.
Geomorphology: fluvial
Posted inEditors' Vox
From Blowing Wind to Running Water: Unifying Sediment Transport
Laboratory experiments and grain-scale computer simulations during the past decade have led to a more universal understanding of flow-driven sediment transport across flows in oil, water, and air.
Posted inOpinions
It’s Time to Revise Estimates of River Flood Hazards
Accurately assessing flood hazards requires a better understanding of the feedbacks between natural and human influences on the characteristics of rivers.
Posted inNews
The Shape of Watersheds
Streams in flatter watersheds have carbon cycles more sensitive to temperature increases.
Posted inOpinions
Luna B. Leopold: Geoscience Pioneer
He conducted river morphology research based on systematic and reproducible measurements, pushing fluvial hydrology to become a more quantitative science.
Posted inResearch Spotlights
The Unpredictability of Floods, Erosion, and Channel Migration
A new algorithm incorporates randomness into stream channel formation and suggests the approach represents regions with variable flood magnitudes better than standard models.
Posted inEditors' Vox
On Integrating Sedimentology and Hydrogeology in Streambeds
A new modeling blueprint seeks to unify sedimentology, hydrology, and hydrogeology in the modeling of streambeds.
Posted inResearch Spotlights
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.
Posted inResearch Spotlights
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.
Posted inResearch Spotlights
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.