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Hydrometeorological Modelling and Component NBS using Environment Canada's MESH Modelling System
- Vincent Fortin;Chris Spence, DaNeil Deacu, Syd Peel, Yasir Kaheil, Hai Lin, Dorothée Charpentier, Erika Klyszejko, Alain Pietroniro
- A 5-year hindcast of net basin supplies was produced using the GEM atmospheric model coupled to the MESH hydrological model, covering the period of June 2004 to May 2009. Estimates of precipitation, runoff and lake evaporation were produced for the period and compared to previous estimates by GLERL and to the coordinated residual NBS estimates. Over that five year period, MESH component NBS were found to agree better with residual NBS estimates than GLERL's component NBS. No calibration to residual NBS was necessary. An attempt to estimate uncertainty was performed using ensemble forecasts. This work aided attempts to close the water balance and improve NBS estimates in the Great Lakes region.
- Viewable Data:
- MESH Monthly Component Net Basin Supplies
- GEM, CaPA and MESH to Predict Great Lakes NBS
- Additional Data and Information
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- Supporting Content
- Main Topics
- - Hydroclimate Information
- Questions We Asked
- - What are the historical NBS estimates & how have changes affected lake levels?
- - What impacts could climate variations have on regulation?
- - Approve Lake Superior Plan 2012
- - Improve understanding of hydroclimatic processes & impacts