Water Quality Modeling for a Typical Urban Lake Based on the EFDC Model

Gong, Ran; Xu, Ligang; De-guan, Wang; Li, Hongyi; Xu, Jin

doi:10.1007/s10666-016-9519-1

Cited by 41 publications

(17 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lake surface (km 2 Models are useful tools for scientific research and lake management [31,32]. In the past decades, a number of dynamics models, such as Finite Volume Community Ocean Model (FVCOM) [33,34], Environmental Fluid Dynamics Code (EFDC) [35][36][37][38][39], Western Lake Erie Ecosystem Model (WLEEM) [20], PCLake [40,41], AQUATOX [42,43], Water Quality Analysis Simulation Program (WASP) [19,44], Eutrophication Ecosystem Model (EEM) [45], or Simulation by means of an Analytical Lake Model (SALMO) [46] have been developed and applied in quantifying the water quality responses to external loading, restoration efforts, and future decision making. Such models help to understand the responses of lake ecosystems to nutrient loads reduction and water transfer, and provide quantitative assessment of the eutrophication status.…”

Section: Criterion Parameter Valuementioning

confidence: 99%

Predicting Lake Eutrophication Responses to Multiple Scenarios of Lake Restoration: A Three-Dimensional Modeling Approach

Wang

Peng

et al. 2018

Water

View full text Add to dashboard Cite

To improve the water quality and alleviate the eutrophication of Lake Yangchenghu, the third largest freshwater body within the Lake Taihu basin in China and an important source of drinking water, nutrient reduction strategies should be urgently addressed by decision makers, since virtually no improvement of water quality has taken place since the mid-1990s. Due to the lack of sufficient observation data and simulation results, a vertically compressed three-dimensional numerical model, the EcoTaihu model, was used to study the impact of three restoration measures on the water quality-namely, total nitrogen (TN), total phosphorus (TP) and biomass of phytoplankton (BP)-of Lake Yangchenghu: (i) total nutrient reduction, (ii) intensification of flushing by water transfer, and (iii) spatial adjustment of inflow channels. In particular, the spatial effects of the three restoration measures on the water quality were investigated. The results showed that the EcoTaihu model is applicable to other shallow lakes in China. The water quality responses to the different restoration scenarios showed significant spatio-temporal differences. The reduction of nutrient loads from inflows appeared to be the most effective measure for controlling the eutrophication and algal blooms in Lake Yangchenghu. The effectiveness of water transfer on the improvement of water quality for TN and TP was more influenced by the differences of nutrient concentrations between the transferred water and lake water, rather than flow rate, since no proportionate increase of improvement was observable in the case of larger transferred rates (60 m 3 s −1 ). The spatial narrowing of inflowing rivers in the southwestern lake could preferentially improve the water quality in the southern bay of the western lake, but would also result in a deterioration trend of water quality in the total lake and drinking water abstraction areas.measures for eutrophication control can be classified into two groups: (i) external measures aiming at reducing the load from catchment area, specifically including reduction of nutrient loads [5,6] and flushing [7][8][9], whereas (ii) in-lake measures influence the properties within the lake, including chemical precipitation [10][11][12], sediment capping [13], sediment dredging [14,15], biological uptake [16], or bio-manipulation [17]. In-lake nutrient inactive measures, like chemical precipitation and sediment capping, were successfully performed in many lakes, but a long-term success can only be obtained with sufficiently reduced external P-loadings [10]. The reduction of nutrient loads is, therefore, the preferred measure for eutrophication control and efficient reduction of chlorophyll-a [18,19] as well as cyanobacterial biomass [20]. Intensifying flushing by additional water transfer is an alternative approach, which aims at increasing the N and P export of the lake by replacing the nutrient-rich lake water with nutrient-poor transferred water. The efficiency of improvement depends on the lake size and the details of the water t...

show abstract

Section: Criterion Parameter Valuementioning

confidence: 99%

Predicting Lake Eutrophication Responses to Multiple Scenarios of Lake Restoration: A Three-Dimensional Modeling Approach

Wang

Peng

et al. 2018

Water

View full text Add to dashboard Cite

show abstract

“…The spatiotemporal variations of the reservoir's trophic status were analyzed and identified the potential areas on which algae blooms could be developed. Accordingly, Tang, Lib, and Acharya (2016) used EFDC model as a management tool for Lake Taihu (China) that suffers from harmful algal blooms, while Gong, Xu, Wang, Li, and Xu (2016) developed a 3D hydrodynamic water quality model for the urban Lake Tianyinhu and its hydrological ecosystem protection that can be applied in respective environments. Zhang and You (2017) developed an EFCD water quality model for Tianjin Erwangzhuang reservoir (China) aimed to grade its eutrophication state.…”

Section: Model Applicabilitymentioning

confidence: 99%

Ecological modeling and eutrophication—A review

Anagnostou

Gianni

Zacharias

2017

Natural Resource Modeling

View full text Add to dashboard Cite

During the several last decades, environmental scientists use numerical modeling as a tool in their studies and investigations of aquatic systems. Ecological and hydrodynamic models are developed in parallel regarding their complexity, uncertainty, and computational power. Ecological models have been used to assess ecosystem processes and interactions, simulate future scenarios, evaluate remedial practices in response to eutrophication etc. This review paper deals with the progress in ecological modeling related to eutrophication processes, specifically in models that describe the trophic state dynamics of hypoxic/anoxic aquatic ecosystems. Nine dynamic ecological models coupled or noncoupled with hydrodynamic models have been discussed based upon their history, complexity, limitations, recent detailed modeling applications, and their important results. The advantages and disadvantages of these models are presented along with their application areas.

show abstract

“…In past decades, many models and commercial software have been developed, including Finite Volume Coastal Ocean Model (FVCOM) [4], Princeton Ocean Model (POM) [5], Delft3D [6], Environmental Fluid Dynamics Code (EFDC) [7], and MIKE3 [8]. These models were initially developed for ocean modeling; nevertheless they have been widely used to study a variety of lake water issues, including lake water resources management [9], seasonal circulation, thermal structure [10,11], and harmful algal blooms [12,13].…”

Section: Introductionmentioning

confidence: 99%

An Integrated Graphic Modeling System for Three-Dimensional Hydrodynamic and Water Quality Simulation in Lakes

Huang

Tian

2019

IJGI

View full text Add to dashboard Cite

Understanding the complex hydrodynamics and transport processes are of primary importance to alleviate and control the eutrophication problem in lakes. Numerical models are used to simulate these processes. However, it is often difficult to perform such a numerical modeling simulation for common users. This study presented an integrated graphic modeling system designed for three-dimensional hydrodynamic and water quality simulation in lakes. The system, called the Lake Modeling System (LMS), provides necessary functionalities streamlined for hydrodynamic modeling. The LMS provides a geographic information system (GIS)-based data processing framework to establish a model and provides capabilities for displaying model input and output information. The LMS also provides mapping and visualization tools to support the model development process. All of these features in a GIS-based framework makes the task of complex hydrodynamic and water quality modeling easier. The applicability of the LMS is demonstrated by a case study in Lake Donghu, which is a large urban lake in the middle reaches of the Yangtze River in China. The LMS was utilized to setup and calibrate a model for Lake Donghu. Then the model was used to study the effects of a water diversion project on the change in hydrodynamics and the water quality.

show abstract

Water Quality Modeling for a Typical Urban Lake Based on the EFDC Model

Cited by 41 publications

References 22 publications

Predicting Lake Eutrophication Responses to Multiple Scenarios of Lake Restoration: A Three-Dimensional Modeling Approach

Predicting Lake Eutrophication Responses to Multiple Scenarios of Lake Restoration: A Three-Dimensional Modeling Approach

Ecological modeling and eutrophication—A review

An Integrated Graphic Modeling System for Three-Dimensional Hydrodynamic and Water Quality Simulation in Lakes

Contact Info

Product

Resources

About