Satellite observations, combined with algorithms borrowed from river engineering, could fill large gaps in our knowledge of global river flows where field data are lacking.
rivers
Posted inScience Updates
Protecting Water Resources Through a Focus on Headwater Streams
Where Land Becomes Stream: Connecting Spatial and Temporal Scales to Better Understand and Manage Catchment Ecosystems; Rennes, France, 7–8 March 2017
Posted inResearch Spotlights
Changes in Groundwater Flow Affect Nitrogen Cycling in Streams
Overpumping and other activities that affect groundwater levels could combine with increased nitrogen runoff to amplify threats to human and environmental health.
Posted inResearch Spotlights
Why Is There So Much Carbon Dioxide in Rivers?
Observations of carbon dioxide oversaturation in the freshwater of the world led scientists to study its underlying causes at more than 100 field locations across the nation.
Posted inResearch Spotlights
River Plumes near the Equator Have Major Effects on Oceans
Every second, the Congo sends millions of gallons of freshwater deep into the Atlantic, influencing marine plants and wildlife.
Posted inResearch Spotlights
How Do Rivers Flow over Bedrock?
A study questions whether the hydraulics of rivers that lack loose sediments along their bottoms can be accurately depicted by standard equations for flow over sediment.
Posted inResearch Spotlights
Lab Tests Probe the Secrets of Steep and Rocky Mountain Streams
Researchers built a glass-encased test environment that helps them assess streamflow without the confounding factors introduced by bed forms.
Posted inResearch Spotlights
Stream Network Geometry Correlates with Climate
A "big data" analysis of nearly 1 million river junctions in the contiguous United States shows that branching angles in dendritic drainages vary systematically between humid and arid regions.
Posted inResearch Spotlights
Arctic Permafrost Thaw Would Amplify Climate Change
An international team probed Arctic permafrost samples to better understand the carbon feedback loop that could be set off by future thawing.
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.