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Comparative Analysis of Net Basin Supply Components and Climate Change Impacts on the Upper Great Lakes Using CHARM



Contributors
Brent Lofgren;Tim Hunter
Abstract
Discussion on GLERL's use of regional climate models to quantify effects of climate scenarios including increased greenhouses gases on Great Lakes basin including net basin supply. GLERL's Coupled Hydrosphere-Atmosphere Research Model (CHARM) was updated from an earlier and used to simulate hydrometeorological variables in two time slices: the historical years of 1964-2000 and future projections for 2043-2070 (referred to by the centered years of 1982 and 2055, respectively). Simulated air temperature, precipitation, surface water temperature, lake evaporation and net basin supply for Great Lakes for the two time slices were compared and discussed.
Reports:
Comparative Analysis of NBS Components & Climate Change Impacts
Viewable Data:
Historical and Future Simulated NBS Data using CHARM
Additional Data and Information

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Supporting Content (Show)
Main Topics
Hydroclimate Information
Questions We Asked
What impacts could climate variations have on regulation?
What impacts could climate variations have on levels?
Key Findings
Future conditions are uncertain, so a new regulation plan must be robust
Changes in levels may not be as extreme in the near-term as previously predicted
View all 3 key findings
Lake levels are unpredictable
Recommendations
Approve Lake Superior Plan 2012
Improve understanding of hydroclimatic processes & impacts
Tasks
Understanding the Water Balance
Hydrological Modelling
View all 4 tasks
Assessing Climate Change Impacts
Water Supply Sequences