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Two-dimensional hydrodynamic model of the St. Lawrence fluvial estuary

机译:St. Lawrence Fluvial Estuary的二维流体动力模型

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The St. Lawrence fluvial estuary (Quebec, Canada) is part of the St. Lawrence--Great Lakes system. It stretches over a distance of 180 km from the eastern end of Lake Saint-Pierre to the eastern tip of Orleans Island (OI). The flow is composed of vertically well-mixed freshwater and is subjected to the growing influence of a semi-diurnal tide culminating with tidal ranges of 7 m at Saint-Joseph-dela-Rive during the largest spring tides. Increases in water levels of more than 1 m/h can be observed at downstream locations during the rising tide, leading to rapid changes in flow conditions as well as in the superficies of wetted areas. The flow properties (e.g., tidal range, timing of current reversals, timing of high and low tides, ebb/flood asymmetry) exhibit both lateral and longitudinal variations that were confirmed by field measurements (Matte et al., 2014).
机译:圣劳伦斯河河口(加拿大魁北克州)是圣劳伦斯 - 大湖系统的一部分。它距离圣皮埃尔湖东端的距离距离距离奥尔良岛东部(OI)的东部。该流动由垂直良好的混合淡水组成,并且在最大的春季潮汐期间,在Saint-Joseph-Dela-Rive期间的半昼夜潮汐在7米处产生的延长影响。在上升潮汐期间,可以在下游位置观察到水平超过1米/小时的水平增加,导致流动条件以及湿润地区的外观中的快速变化。流动性质(例如,潮汐范围,电流逆转的时序,高潮汐,冰布/洪水不对称)表现出通过现场测量确认的横向和纵向变化(Matte等,2014)。

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