Analyses of new shipboard and ROV observations of bedrock channels carved by floods and outbursts from subglacial lakes under Antarctica shed light on complex subglacial processes.
Journal of Geophysical Research: Earth Surface
Posted inEditors' Highlights
Debris Flows Keep the Landscape on the Straight and Narrow
New methods for identifying debris flow-shaped channels improve hazard quantification and highlight how high uplift rates and fractured bedrock facilitate debris flow-dominated landscape evolution.
Posted inEditors' Highlights
Moving Earthquake-Generated Sediment Through a Landscape
Ten years after the Wenchuan earthquake, most of the new sediment it produced remained on the landscape, indicating a long recovery time.
Posted inEditors' Highlights
History Matters When Gauging Hillslope Susceptibility to Failure
Using susceptibility models to forecast the potential locations of landslides is a key tool in mitigating landslide hazard, but are existing approaches appropriate in dynamic mountainous settings?
Posted inResearch Spotlights
Western U.S. “Megafloods” Might Not Have Been So Mega
The flooding that carved eastern Washington State 20,000 to 12,000 years ago could have been 80% smaller than the canyons’ volume today.
Posted inResearch Spotlights
How Climate Change Shaped the Amazon’s Land and Life
Ice Age climate swings shaped the equatorial basin’s terrain—and possibly its ecology—faster than previously thought.
Posted inResearch Spotlights
High Mountain Rain Has Scientists Rethinking River Basics
Rainfall varies with elevation, and such precipitation gradients can have profound and often counterintuitive effects on topography.
Posted inResearch Spotlights
Recovering Mantle Memories from River Profiles
Researchers use a closed-loop modeling strategy to validate regional uplift patterns recorded in river profiles across the African continent.
Posted inEditors' Highlights
Grain Scale Dynamics During Barchan-Barchan Interactions
A new study pinpoints grain scale dynamics during binary interactions between barchan dunes.
Posted inEditors' Highlights
Impacts by Moving Gravel Cause River Channels to Widen or Narrow
A new analytical model describes how the amount and grain size of sediment transported by rivers influences bedrock channel width, which can be used to predict where rivers will widen or narrow.