Hydrodynamics and water quality in western Lake Ontario

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• 作者：Yerubandi R. Rao ; ^{Ram.Yerubandi@ec.gc.ca} ; J.E. Milne¹ ; ^{Jacqui.Milne@ec.gc.ca} ; C.H. Marvin² ; ^{Chris.Marvin@ec.gc.ca}
• 关键词：Nearshore ; Lake Ontario ; Physical Processes ; Resuspension
• 刊名：Journal of Great Lakes Research
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：38
• 期：supp_S4
• 页码：91-98
• 全文大小：1K

文摘

The hydrodynamics and water quality parameters in the nearshore waters of western Lake Ontario (WLO) were examined using time series data from late-spring to early-summer of 2006. In general, the observed water quality parameters were within the expected limits of Lake Ontario. The observations suggest that in this region, the nearshore-offshore gradients of nutrients were influenced by the formation of a coastal boundary layer. Comparison of time series of physical and nutrient measurements reveal that upwelling due to winds from the west and downwelling due to winds from the east affect the water quality during the summer. These observations further confirm that moderate to significant taste and odour events in drinking water were due to strong downwelling episodes of surface water to intake depths in late summer. Resuspension of bottom material by surface wind waves was another mechanism that affects the water quality in WLO.