Great Plains rivers rely on wetlands as much as climate patterns
Researchers studying the Prairie Pothole Region found that wetland conditions influence river flow alongside weather data in October 2026.
Study combines decades of satellite data
Scientists analyzed thirty-eight years of satellite imagery to track changes across the landscape. They paired these images with climate records and streamflow measurements from one hundred and nine catchment areas. The team focused on how water moves through millions of depressional wetlands formed by glaciers.
Wetlands store or release incoming water
The researchers determined that the state of these wetlands decides whether water stays stored or enters rivers. Shallow depressions without permanent surface connections to main channels play a critical role in this process. Climate factors like snow, rain, and temperature still determine how much water enters the region.
Prairie Pothole Region spans two nations
This vast area covers parts of northern Canada and the United States. It contains an estimated five million to eight million wetlands created by ancient glacial activity. The study suggests that looking only at the sky misses half the story of river flow.
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