Take an underwater journey as researchers deploy sonar technology to map the lakebed to document organisms that call it home. The goal is to provide data to fishery and hatchery managers and those ...

This shoreline-wide map product, together with several other geospatial datasets and nowcasts, can be viewed on the Great Lakes Dangerous Nearshore Current Dashboard.

Above: Satellite view of the Great Lakes on a recent clear day (December ... In Figure 2 below, the map on the left of each image shows how much colder or warmer than normal the air temperature ...