Institut national de la recherche scientifique (INRS), Centre Eau Terre Environnement (ETE), 490 De La Couronne, Québec City, Québec, G1K 9A9, Canada.
AGIRO, 433 Rue Delage, Québec City, Québec, G3G 1H4, Canada.
Environ Monit Assess. 2023 Sep 12;195(10):1198. doi: 10.1007/s10661-023-11744-2.
A 3D hydrodynamic model (EFDC) was applied to simulate dissolved oxygen (DO) and temperature (T) (two crucial parameters impacting water quality) throughout Lake St. Charles, a rural-urban shallow lake located North of Quebec City, Canada. Model outputs of T and DO corroborate observations at five monitoring stations within the lake. Simulated results indicated annual cycles of turnovers and stratifications and different behaviors for the deep and shallow basins. For the simulated years, the deep basin was stratified in summer and winter, while the shallow basin was mostly mixed throughout the year. The lake heat budget indicates that during summer with a long retention time, the thermal structure of the lake is principally controlled by net radiation, latent, and sensible heat fluxes. For the rest of the year, the inflow (from the main tributary, the Des Hurons River) and outflow are the main drivers of the lake's thermal structure.
采用三维水动力模型（EFDC）模拟了加拿大魁北克市北部圣查尔斯湖的溶解氧（DO）和温度（T）（影响水质的两个关键参数）。T 和 DO 的模型输出与湖内五个监测站的观测结果相吻合。模拟结果表明，深层和浅层盆地存在年度翻转和分层的周期性以及不同的行为。对于模拟年份，深盆在夏季和冬季分层，而浅盆在一年中大部分时间混合。湖热预算表明，在夏季滞留时间长的情况下，湖的热结构主要受净辐射、潜热和感热通量控制。在一年中的其余时间，入流（来自主要支流休伦河）和出流是影响湖热结构的主要因素。
