Three dimensional modelling to assess contributions of major tributaries to fecal microbial pollution of lake St. Clair and Sandpoint Beach

Madani, Mohammad; Seth, Rajesh; León, Luis F. De; Valipour, Reza; McCrimmon, Craig

doi:10.1016/j.jglr.2019.12.005

Cited by 21 publications

(18 citation statements)

References 59 publications

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“…For example, sunlight, temperature, and sedimentation induced FIB loss was coupled to a two‐dimensional (2D) hydrodynamic model to simulate EC and ENT in southern Lake Michigan over a month (Liu et al., 2006). Using more complex 3D hydrodynamic models, modeled and observed EC agreed well in Lake St. Clair during Summer 2010 (Madani et al., 2020). In marine environments, 2D and 3D hydrodynamic models coupled to ENT models reproduce diel and tidal ENT fluctuations inside Key Biscane FL (Feng et al., 2013) and effluent plumes near Waikiki HI (Johnson et al., 2013).…”

Section: Introductionmentioning

confidence: 84%

Modeling Untreated Wastewater Evolution and Swimmer Illness for Four Wastewater Infrastructure Scenarios in the San Diego‐Tijuana (US/MX) Border Region

et al. 2021

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The popular beaches of the San Diego‐Tijuana (US/MX) border region are often impacted by untreated wastewater sourced from Mexico—via the Tijuana River Estuary (TJRE) and San Antonio de los Buenos outfall at the Pt. Bandera (SAB/PTB) shoreline, leading to impacted beaches and human illness. The US‐Mexico‐Canada trade agreement will fund border infrastructure projects reducing untreated wastewater discharges. However, estimating project benefits such as reduced human illness and beach impacts is challenging. We develop a coupled hydrodynamic, norovirus (NoV) pathogen, and swimmer illness risk model with the wastewater sources for the year 2017. The model is used to evaluate the reduction in human illness and beach impacts under baseline conditions and three infrastructure diversion scenarios which (Scenario A) reduce SAB/PTB discharges and moderately reduce TJRE inflows or (Scenarios B, C) strongly reduce TJRE in inflows only. The model estimates shoreline untreated wastewater and NoV concentrations, and the number of NoV ill swimmers at Imperial Beach CA. In the Baseline, the percentage of swimmers becoming ill is 3.8% over 2017, increasing to 4.5% during the tourist season (Memorial to Labor Day) due to south‐swell driven SAB/PTB plumes. Overall, Scenario A provides the largest reduction in ill swimmers and beach impacts for the tourist season and full year. The 2017 tourist season TJRE inflows were not representative of those in 2020, yet, Scenario A likely still provides the greatest benefit in other years. This methodology can be applied to other coastal regions with wastewater inputs.

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Section: Introductionmentioning

confidence: 84%

Modeling Untreated Wastewater Evolution and Swimmer Illness for Four Wastewater Infrastructure Scenarios in the San Diego‐Tijuana (US/MX) Border Region

et al. 2021

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“…ELCOM has been coupled with the biogeochemical the Computational Aquatic Ecosystem Dynamics Model (CAEDYM) to simulate Lake Erie phytoplankton and nutrients (León et al, 2011), and the response of hypoxia (Bocaniov and Scavia, 2016) and algae blooms (Scavia et al, 2016) to nutrient load reductions. Recent applications of AEM3D include a study of the water level in Lake Arrowhead, California (Saber et al, 2020), ice cover in Lake Constance (Caramatti et al, 2019), and pollutant transport in Lake St. Clair (Madani et al, 2020).…”

Section: Model Descriptionmentioning

confidence: 99%

An automatic lake-model application using near-real-time data forcing: development of an operational forecast workflow (COASTLINES) for Lake Erie

et al. 2022

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Abstract. For enhanced public safety and water resource management, a three-dimensional operational lake hydrodynamic forecasting system, COASTLINES (Canadian cOASTal and Lake forecastINg modEl System), was developed. The modeling system is built upon the three-dimensional Aquatic Ecosystem Model (AEM3D) model, with predictive simulation capabilities developed and tested for a large lake (i.e., Lake Erie). The open-access workflow derives model forcing, code execution, post-processing, and web-based visualization of the model outputs, including water level elevations and temperatures, in near-real time. COASTLINES also generates 240 h predictions using atmospheric forcing from 15 and 25 km horizontal-resolution operational meteorological products from the Environment Canada Global Deterministic Forecast System (GDPS). Simulated water levels were validated against observations from six gauge stations, with model error increasing with forecast horizon. Satellite images and lake buoys were used to validate forecast lake surface temperature and the water column thermal stratification. The forecast lake surface temperature is as accurate as hindcasts, with a root-mean-square deviation <2 ∘C. COASTLINES predicted storm surges and up-/downwelling events that are important for coastal flooding and drinking water/fishery management, respectively. Model forecasts are available in real time at https://coastlines.engineering.queensu.ca/ (last access: January 2022). This study provides an example of the successful development of an operational forecasting workflow, entirely driven by open-access data, that may be easily adapted to simulate aquatic systems or to drive other computational models, as required for management and public safety.

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“…Previous applications of ELCOM are widely referenced in limnological studies (Trolle et al, 2012), including studies of reservoir hydrodynamics and sediment transport (Dissanayake et al, 2019;Trolle et al, 2012). AEM3D features in more recent publications describing reservoir and lake modeling (e.g., Madani et al, 2020;Ryu et al, 2020;Tranmer et al, 2018;Valipour et al, 2019;Valerio et al, 2019;Zamani & Koch, 2020). Zamani and Koch (2020) demonstrate the appropriateness of AEM3D for modeling reservoirs, such as Upper Yarra reservoir, that have complex bathymetry, steep walls, and a wind-mixed surface layer.…”

Section: Reservoir Hydrodynamics Modelmentioning

confidence: 99%

Probability and Consequence of Postfire Erosion for Treatability of Water in an Unfiltered Supply System

Nyman

Yeates²,

Langhans

et al. 2021

Water Resources Research

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Three dimensional modelling to assess contributions of major tributaries to fecal microbial pollution of lake St. Clair and Sandpoint Beach

Cited by 21 publications

References 59 publications

Modeling Untreated Wastewater Evolution and Swimmer Illness for Four Wastewater Infrastructure Scenarios in the San Diego‐Tijuana (US/MX) Border Region

Modeling Untreated Wastewater Evolution and Swimmer Illness for Four Wastewater Infrastructure Scenarios in the San Diego‐Tijuana (US/MX) Border Region

An automatic lake-model application using near-real-time data forcing: development of an operational forecast workflow (COASTLINES) for Lake Erie

Probability and Consequence of Postfire Erosion for Treatability of Water in an Unfiltered Supply System

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