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The Great Lakes Observing System coordinates Great Lakes data collection, management, and sharing.
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Great Lakes Buoys
Great Lakes Buoys
Find your buoy and see the real-time data. Access data about wind, waves, water temperature, phosphorous, chlorophyll a, and more.
Harmful Algal Blooms
Harmful Algal Blooms
Harmful algal blooms are a concern around the Great Lakes, but especially in western Lake Erie, where they threaten drinking water supplies. Learn about the issue and what we and partners are doing to react to it.
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HABs Data Portal
Access real-time data on harmful algal blooms in Lake Erie.
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GLOS News
Buoys returning to the Great Lakes
Posted by GLOS_Admin April 17th, 2019
Water treatment workers better equipped to monitor harmful algal blooms after calibration event
Posted by GLOS_Admin March 12th, 2019
2018 Annual Report goes live
Posted by GLOS_Admin February 7th, 2019
Events
April 17-18 GLOS Board Meeting
Posted by GLOS_Admin April 12th, 2019
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