Great Lakes Retrospectives and Prospectives
A Product of the Great Lakes Water Quality Agreement
Historical observations for each retrospective summary were retrieved from the NOAA-Great Lakes Environmental Research Laboratory (GLERL) Great Lakes Monthly Hydrologic Data, Great Lakes Ice Cover Database, and Great Lakes CoastWatch Surface Environmental Analysis, to provide a snapshot of lake level, precipitation, water temperature, and ice trends in the last 50 years. The 50-year time period of reference is 1972-2021, with the exception of variables that do not have records that far back (ice cover records begin in 1973, water temperature records begin in 1995).
For a more in-depth summary of trends on the Great Lakes, please refer to GLISA’s Sustained Assessment of the Great Lakes Resource.
Click one of the lakes below to be taken to its Retrospective summary.
These retrospective webpages were developed by the GLISA team with funding from National Atmospheric and Atmospheric Administration’s (NOAA) Great Lakes Regional Collaboration Team and Cooperative Institute for Great Lakes Research (CIGLR).
Kim Channell, Omar Gates, and Patrick Britt
Click one of the lakes below to be taken to its Prospective Report.
These summary reports were developed by the GLISA team with funding from Environment and Climate Change Canada (ECCC).
Kim Channell, John DelPizzo, Laura Briley, Richard Rood, Jenna Jorns, and Kate Hutchens
The Retrospectives and Prospectives were developed with support from an advisory group made up of the following individuals:
- Alex Cannon, Environment and Climate Change Canada
- Steve Clement, Environment and Climate Change Canada
- Jennifer Day, National Oceanic and Atmospheric Administration
- Jenessa Doherty, Environment and Climate Change Canada
- John Haugland, Environmental Protection Agency
- Shaffina Kassam, Environment and Climate Change Canada
- Doug Kluck, National Oceanic and Atmospheric Administration
- Sharon Lam, Toronto and Regional Conservation Authority
- Glenn Milner, Climate Risk Institute
- Biljana Music, Ouranos
- Michael Notaro, University of Wisconsin
- Frank Seglenieks, Environment and Climate Change Canada
- Ram Yerubandi, Environment and Climate Change Canada