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Analysis of Changes in the Great Lakes Net Basin Supply Components and Explanatory Variables
- Taha Ouarda;Eghbal Ehsanzadeh, Hadiza Saley, Naveed Khaliq, Ousmane Seidou, Christian Charron, Deborah Lee, Alain Pietroniro
- An analysis of changes in Great Lakes NBS and hydro-climatic variables was performed to investigate impacts of possible climate change on natural processes in the Great Lakes basin. The main focus was on NBS and water levels, but other variables such as runoff, precipitation, evaporation, change in storage, connecting channel flows, diversions, over basin temperature, and water temperatures were also analyzed. Making use of a nonparametric Mann-Kendall trend test, the time series were tested for trends under independence, short term persistence, and long term persistence hypotheses. As the principal variables under study, a shift detection analysis was performed on the NBS and water level time series as well. Trends and change points were identified and discussed for a number of variables.
- Viewable Data:
- GLERL Monthly Component Net Basin Supplies
- Additional Data and Information
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- Supporting Content
- Main Topics
- - St. Clair River
- Questions We Asked
- - How has climate affected Michigan-Huron and Erie level relationship?
- Key Findings
- - Hydroclimate accounts for 9-17 cm of total head decline
- - Remedial measures should not be taken in the St. Clair