Great lakes scientists launch citizen science project to track ice thickness as climate changes

Scientists across the Great Lakes region are turning to local communities for help measuring ice thickness this winter, launching an innovative citizen science initiative to improve ice forecasting models. While satellites excel at tracking ice coverage from above, they cannot determine how thick the ice actually is—critical information for safety and navigation.

The Great Lakes Observing System (GLOS) in Ann Arbor, Michigan, is leading the effort in its second year, seeking data from ice fishers, educators, and other “ice-aware” locals who regularly venture onto frozen lakes. Last year’s pilot program recruited about a dozen participants who logged around 30 measurements, revealing that ice formation is far more variable than scientists initially predicted. Participants discovered fascinating details like water layers between ice sheets—insights that prove invaluable for improving forecasting models.

This grassroots approach addresses a significant data gap, as monitoring buoys are typically removed during harsh winter conditions. The collected information serves multiple purposes: enhancing safety for the millions who depend on Great Lakes ice for recreation and work, improving navigation for ice-breaking ships, and tracking how climate change affects regional ice patterns. While average Great Lakes ice cover has declined since the 1990s, year-to-year variations remain dramatic.

The program exemplifies community-driven environmental science, with middle school students in Traverse City joining seasoned ice fishers in contributing valuable data. As one participating teacher noted, students love being outdoors while knowing their measurements will help fellow community members stay safe on the ice.