A reduced-order based CE-QUAL-W2 model for simulation of nitrate concentration in dam reservoirs

Noori, Roohollah; Yeh, Hund‐Der; Ashrafi, Khosro; Rezazadeh, Najmeh; Bateni, Sayed M.; Karbassi, Abdol Reza; Kachoosangi, Fatemeh Torabi; Moazami, Saber

doi:10.1016/j.jhydrol.2015.10.022

Cited by 40 publications

(19 citation statements)

References 39 publications

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“…These results are in accordance with Brito et al [15], who applied a similar model to study the Enxoé Reservoir dynamics in southern Portugal. Similar good results were obtained by Lee et al [50] for the Hodges Reservoir, San Diego, USA, and Noori et al [51] for the Karkheh Reservoir, Iran, using the same model.…”

Section: Validationsupporting

confidence: 86%

An Integrated Modelling Approach to Study Future Water Demand Vulnerability in the Montargil Reservoir Basin, Portugal

et al. 2019

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This paper describes an integrated modelling approach to study water use vulnerability in a typical Mediterranean basin under different climate change projections. The soil water assessment tool (SWAT) and the MOHID (from modelo hidrodinâmico) Water model were used to evaluate the impacts of two climate scenarios (GFDL-ESM2M and IPSL-CM5A-LR) on water availability in Montargil’s basin and reservoir (Portugal) during two decadal timelines (2030 and 2060). Reservoir performance metrics were estimated considering also two water demand scenarios: an average of the water demand in the last 10 years; and the largest annual demand of the last 10 years. The SWAT model results showed a future decrease of inflows to the reservoir, with its volumetric reliability decreasing from 100% in the historical simulation to about 60–70% in the IPSL-CM5A-LR climate scenario and 40–50% in the GFDL-ESM2M climate scenario. The time reliability also decreased to less than 30%, while the resiliency for the water demand decreased to an average 20–35% for both climate scenarios. These impacts indicate the importance of the managing systems in an integrative mode to prevent water resources reduction in the region.

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Section: Validationsupporting

confidence: 86%

An Integrated Modelling Approach to Study Future Water Demand Vulnerability in the Montargil Reservoir Basin, Portugal

et al. 2019

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“…There have been many studies on its use, most commonly to describe thermal stratification in the water column in large reservoirs [4][5][6][7][8][9][10]. This model has also been used to describe direct and diffusive sources of pollution [11][12][13][14][15], eutrophication and its evolution [16][17][18][19] and to make predictions of turbidity under different climate and management scenarios [20][21][22][23][24][25]. Efforts have involved coupling W2 with output files from hydrological models, such as the Soil and Water Assessment Tool (SWAT) [7,14,26].…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of an Acid Water Spill in a Mountain Reservoir

Jofre-Meléndez

Torres

Ramos-Arroyo

et al. 2017

Water

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The Olivargas Reservoir is located in a remote and scarcely monitored area in the Odiel River Basin (Southwest Spain) and is used for domestic, agricultural and mining water supplies. In contrast with highly monitored reservoirs, this paper explores the application of the CE-QUAL-W2 model, that was designed by Cole and Wells in 2005, to a poorly monitored reservoir and the utility of the results obtained. The model satisfactorily reproduced the water head measured continuously over three years, temperature (T), total dissolved solids (TDS), dissolved oxygen (DO) and pH measured bimonthly in a depth profile near the dam. A significant increase in TDS and decrease in DO and pH profiles were observed for four months, especially in the hypolimnion. The model reproduced changes in the parameters by assuming the occurrence of an acid water spill into the reservoir. A comparison of calculated results and measured TDS and DO prompted the conclusion that the spill consisted of approximately 3000 t of TDS (mainly sulfates) and 26 t of Fe(II) flowing into the reservoir for approximately 15 days at rates of approximately two and 0.02 kg/s, respectively.Water 2017, 9, 613 2 of 15 applications are based on a broad understanding of reservoir geometry and time-series data on flow, temperature profiles and chemical and biological quality.Many small reservoirs (<50 hm 3 ), however, exist in remote and mountainous areas. They supply water to small communities, and there is rarely accurate monitoring or complete datasets on their physical, chemical and biological parameters. For such communities, water resource management is just as necessary, but the application of the conventional W2 can be challenging and has yet not been explored.The present work describes the calibration of the W2 model for a small reservoir with scarce monitoring in the upper basin of the Odiel River (in Southwest Spain). This region is known for its mining activity, and water from the reservoir is used for domestic consumption, agriculture and mining. As the only form of surveillance, a depth profile of temperature (T), electric conductivity (EC), dissolved oxygen (DO), pH and oxidation-reduction potential (ORP) was taken every two months close to the dam of the reservoir from June 2009 to December 2012. All these data were obtainable by the user without permanent stations or monitoring programs. Besides, an anomalous EC, DO and pH values were detected in one surveillance campaign and were attributed to a possible mining spill.For the reconstruction and evaluation of a possible pollution event, a W2 model was built and calibrated with the data from the bimonthly profiles. In contrast with the highly detailed models on highly monitored reservoirs, this paper explores the application of W2 to a poorly monitored reservoir and the utility of the results obtained.

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“…Also, the high number of parameters makes the calibration tasks difficult. Nonetheless, this model has been optimized for water quality in reservoirs and is one of the most used models in the study and management of these aquatic systems [36][37][38][39][40][41].…”

Section: Models Included In the Evaluationmentioning

confidence: 99%

ScoRE—A Simple Approach to Select a Water Quality Model

Mateus

Vieira

Almeida

et al. 2018

Water

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Over the past decades, water quality models have become unique tools in the management of aquatic resources. A consequence of their widespread application is the significant number of models now available. Available methodologies to compare models provide limited support for their choice in the first place, especially to end-users or modelers with limited experience. Here we propose a method to assist in the selection of a particular model from a set of apparently similar models. The method is termed ScoRE, as it grades models according to three main aspects: Scope (aim, simulated processes, constituents, etc.), Record (reference to the model in publications, its range of applications, etc.), and the Experience of using the model from the user perspective (support material, graphical user interface, etc.). End-users define the criteria to be evaluated and their relative importance, as well as the conditions for model exclusion. The evaluation of models is still performed by the modelers, in open discussion with end-users. ScoRE is a complete approach, as it provides guidance not only to exclude models but also to select the most appropriate model for a particular situation. An application of this method is provided to illustrate its use in the choice of a model. The application resulted in the definition of 18 criteria, where 6 of these were defined exclusively by the end-users. Based on these and the relative importance of each criterion, ScoRE produced a ranking of models, facilitating model selection. The results illustrate how the contributions from modelers and end-users are integrated to select a model for a particular task.

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A reduced-order based CE-QUAL-W2 model for simulation of nitrate concentration in dam reservoirs

Cited by 40 publications

References 39 publications

An Integrated Modelling Approach to Study Future Water Demand Vulnerability in the Montargil Reservoir Basin, Portugal

An Integrated Modelling Approach to Study Future Water Demand Vulnerability in the Montargil Reservoir Basin, Portugal

Reconstruction of an Acid Water Spill in a Mountain Reservoir

ScoRE—A Simple Approach to Select a Water Quality Model

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