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Smart buoys help brace Great Lakes for environmental challenges

Ake Erie is the first of the Great Lakes getting connected to the internet with a series of offshore “smart” buoys. And it’s not just for sending texts on the water.

Environmental News Network - Robots Give NOAA a Peek Under the Ice of the Great Lakes

New buoys in Great Lakes will remain all winter, provide novel data on ice and fish

Scientists have never gotten such an intimate look at life in the Great Lakes during the winter.

Sturdier Lake Michigan buoy aims to give you better winter weather alerts

As the days grow shorter and the temperatures tumble, it won't be much longer before Lake Michigan's buoys will get pulled in for the season.This winter, howeve

Release of nutrients from lake-bottom sediments worsens Lake Erie's annual 'dead zone,'

Robotic laboratories on the bottom of Lake Erie have revealed that the muddy sediments there release nearly as much of the nutrient phosphorus into the surrounding waters as enters the lake s central basin each year from rivers and their tributaries. Excessive phosphorus, largely from agricultural sources, contributes to the annual summer cyanobacteria bloom that plagues Lake Erie s western basin and the central basin s annual dead zone, an oxygen-starved region that blankets several thousand square miles of lake bottom and that reduces habitat for fish and other organisms. The release of phosphorus from Lake Erie sediments during periods of low oxygen a phenomenon known as self-fertilization or internal loading has been acknowledged since the 1970s. But the new University of Michigan-led study marks the first time the process has been monitored step by step for an entire season using lake-bottom sensors.

Release of nutrients from lake-bottom sediments worsens Lake Erie's annual 'dead zone,' could intensify as climate warms