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Summer Season Water Temperature Modeling under the Climate Change: Case Study for Fourchue River, Quebec, Canada

Forecast and Control Division, Nakdong River Flood Control Office, Busan 49300, Korea
INRS-ETE, 490 rue de la Couronne, Québec, QC G1K 9A9, Canada
Department of Hydro Science and Engineering, Korea Institute of Civil Engineering and Building Technology, Goyang-si 10223, Gyeonggi-do, Korea
Author to whom correspondence should be addressed.
Academic Editor: Richard Skeffington
Water 2017, 9(5), 346;
Received: 2 November 2016 / Revised: 8 May 2017 / Accepted: 10 May 2017 / Published: 14 May 2017
(This article belongs to the Special Issue Ecological Responses of Lakes to Climate Change)
It is accepted that human-induced climate change is unavoidable and it will have effects on physical, chemical, and biological properties of aquatic habitats. This will be especially important for cold water fishes such as trout. The objective of this study is to simulate water temperature for future periods under the climate change situations. Future water temperature in the Fourchue River (St-Alexandre-de-Kamouraska, QC, Canada) were simulated by the CEQUEAU hydrological and water temperature model, using meteorological inputs from the Coupled Model Intercomparison Project Phase 5 (CMIP5) Global Circulation Models (GCMs) with Representative Concentration Pathway (RCP) 2.6, 4.5 and 8.5 climate change scenarios. The result of the study indicated that water temperature in June will increase 0.2–0.7 °C and that in September, median water temperature could decrease by 0.2–1.1 °C. The rise in summer water temperature may be favorable to brook trout (Salvelinus fontinalis) growth, but several days over the Upper Incipient Lethal Temperature (UILT) are also likely to occur. Therefore, flow regulation procedures, including cold water releases from the Morin dam may have to be considered for the Fourchue River. View Full-Text
Keywords: water temperature; climate change; CEQUEAU water temperature; climate change; CEQUEAU
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Kwak, J.; St-Hilaire, A.; Chebana, F.; Kim, G. Summer Season Water Temperature Modeling under the Climate Change: Case Study for Fourchue River, Quebec, Canada. Water 2017, 9, 346.

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