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Data

Data

Find data for your decision or connect your device or data stream to the observing network.

We support real-time, historical, and predictive observing data from the five Great Lakes and into the watershed.

GLOS supports:

🌊 Physical data about the wind, waves, underwater environment, and more

🧪 Biogeochemical data like chlorophyll, oxygen, and toxins

🐟 Biological and ecosystem data about fish, algae, and more

Data sources include:

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Buoys and
Moorings

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Shore-based
Systems

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Uncrewed
Systems

Vessel 3-01

Vessels of
Opportunity

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High-Frequency
Radar

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Satellites

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Scientific
Models

GLOS partners with dozens of organizations throughout the region to maintain the observing network, serve data, advance technology, and more.

Mockup of Great Lakes and Buoy data on a computer and phone

Seagull

GLOS built Seagull to help connect people to the water like never before. A powerful, cloud-based platform, Seagull re-imagines how connected data becomes information and insights in peoples’ hands.

Seagull Data screenshot of water temperature in Lake Erie

Check Lake Temperature

Seagull data screenshot of a platform icon and its data points

See Live Waves and Currents

Screenshot of Seagull graph depicting blue green algae levels

Track Water Quality

GLOS partners with dozens of organizations throughout the region to maintain the observing network, serve data, advance technology, and more.

U.S. Integrated Ocean Observing System Certified Regional Association

GLOS offers an IOOS certified access point for real-time observing data. This standardized formatting and quality control system shows others that your data is up to federal standards.

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Hundreds of Thousands of Observers

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Over 100 Real-time Stations

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Dozens of Partner Organizations

Legacy Apps

Some legacy applications will be phased out as Seagull adds functionality.

[Decommissioned] GL Buoys

Displayed live data from buoys, sondes, and other platforms. Now, see these stations on Seagull.

Try Seagull

Data Portal

Real-time, predictive, and historical data from across the region.

View

Great Lakes Geospatial Metadata Catalog

Information on hundreds of datasets.

View

Great Lakes Acoustic Telemetry Observation System

A hub for fish tracking data.

View

Maumee River Nutrient Tracker

Yearly trends for phosphorus and other nutrients.

View

Huron-Erie Spill Scenario Tool

A spill simulator to help protect drinking water.

View

GLOS