An international team probed Arctic permafrost samples to better understand the carbon feedback loop that could be set off by future thawing.
Rivers
Posted inResearch Spotlights
What Proportion of River Nutrients Reaches the Open Sea?
Results of the first geographically based estimates of river nutrient supply indicate that 75% of dissolved nitrogen and 80% of phosphorus reach the open ocean.
Posted inResearch Spotlights
River's Rise Linked to Oklahoma's Largest Earthquake
As human-induced earthquakes increase in frequency and magnitude, researchers race to uncover their effects on surface water and groundwater.
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
Groundwater: A Hidden Influence on River Shape
A new study shows how groundwater influences river dynamics and channel pattern.
Posted inNews
New Flood Model Offers National Streamflow Coverage
The model, released by the National Weather Service, will provide neighborhood-level flood forecasting.
Posted inResearch Spotlights
Headwater Streams May Export More Carbon Than Previously Thought
New research sheds light on the streams that carry carbon away from peatlands with the hope that the data will better inform climate models.
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
A River Network Preserved Beneath the Greenland Ice Sheet
An ancient drainage basin covering one fifth of Greenland predates the ice sheet and strongly influences the modern Jakobshavn Glacier, according to a new analysis of ice-penetrating radar data.
Posted inNews
Silty Streams Muddy Freshwater Conservation Issues
Throughout the Pacific Northwest, dirt from unpaved roads can clog streams, threatening fish habitats. Scientists have only a murky understanding of how to clear up these turbid waters.