Battle of the Water Calibration Networks

Ostfeld, Avi; Salomons, Elad; Ormsbee, Lindell; Uber, James G.; Bros, Christopher M.; Kalungi, Paul; Burd, Richard; Zazula-Coetzee, Boguslawa; Belrain, Teddy; Kang, Doosun; Lansey, Kevin; Shen, Hailiang; McBean, Edward; Wu, Zheng Yi; Walski, Tom; Alvisi, Stefano; Franchini, Marco; Johnson, Joshua P.; Ghimire, Santosh R.; Barkdoll, Brian D.; Koppel, Tarmo; Vassiljev, Anatoli; Kim, Joong Hoon; Chung, Gunhui; Yoo, Do Guen; Diao, Kegong; Zhou, Yue; Ji, Li; Liu, Zilong; Chang, Kui; Gao, Jinliang; Qu, Shaojian; Yuan, Yixing; Prasad, T. Devi; Laucelli, Daniele Biagio; Vamvakeridou, L.; Kapelan, Zoran; Savić, Dragan; Berardi, Luigi; Barbaro, Giuseppe; Giustolisi, Orazio; Asadzadeh, Masoud; Tolson, Bryan A.; McKillop, Robert

doi:10.1061/(asce)wr.1943-5452.0000191

Cited by 141 publications

(47 citation statements)

References 26 publications

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“…A previously published network C-Town (Ostfeld et al 2012) is used as a validation casestudy for the graph-theoretic method proposed. This is a medium size network that consists of 333 nodes, 429 pipes, 4 valves, 5 pump stations, 7 elevated tanks, and 1 reservoir.…”

Section: Validation Of the Resilience Assessment Methodsmentioning

confidence: 99%

A Graph-Theoretic Framework for Assessing the Resilience of Sectorised Water Distribution Networks

Herrera

Abraham

Stoianov

2016

Water Resour Manage

138

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Water utilities face a challenge in maintaining a good quality of service under a wide range of operational management and failure conditions. Tools for assessing the resilience of water distribution networks are therefore essential for both operational and maintenance optimization. In this paper, a novel graph-theoretic approach for the assessment of resilience for large scale water distribution networks is presented. This is of great importance for the management of large scale water distribution systems, most models containing up to hundreds of thousands of pipes and nodes. The proposed framework is mainly based on quantifying the redundancy and capacity of all possible routes from demand nodes to their supply sources. This approach works well with large network sizes since it does not rely on precise hydraulic simulations, which require complex calibration processes and computation, while remaining meaningful from a physical and a topological point of view. The proposal is also tailored for the analysis of sectorised networks through a novel multiscale method for analysing connectivity, which is successfully tested in operational utility network models made of more than 100,000 nodes and 110,000 pipes.

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Section: Validation Of the Resilience Assessment Methodsmentioning

confidence: 99%

A Graph-Theoretic Framework for Assessing the Resilience of Sectorised Water Distribution Networks

Herrera

Abraham

Stoianov

2016

Water Resour Manage

138

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“…However, the experience of the modeler plays an important role, and in this sense, calibration can be described as an art as well as a science [21][22][23][24].…”

Section: Pre-calibration Input Data and Model Structure Improvementmentioning

confidence: 99%

A Guideline for Successful Calibration and Uncertainty Analysis for Soil and Water Assessment: A Review of Papers from the 2016 International SWAT Conference

Abbaspour

Vaghefi

Srinivasan

2017

Water

301

189

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Application of integrated hydrological models to manage a watershed's water resources are increasingly finding their way into the decision-making processes. The Soil and Water Assessment Tool (SWAT) is a multi-process model integrating hydrology, ecology, agriculture, and water quality. SWAT is a continuation of nearly 40 years of modeling efforts conducted by the United States Department of Agriculture (USDA) Agricultural Research Service (ARS). A large number of SWAT-related papers have appeared in ISI journals, building a world-wide consensus around the model's stability and usefulness. The current issue is a collection of the latest research using SWAT as the modeling tool. Most models must undergo calibration/validation and uncertainty analysis. Unfortunately, these sciences are not formal subjects of teaching in most universities and the students are often left to their own resources to calibrate their model. In this paper, we focus on calibration and uncertainty analysis highlighting some serious issues in the calibration of distributed models. A protocol for calibration is also highlighted to guide the users to obtain better modeling results. Finally, a summary of the papers published in this special issue is provided in the Appendix.

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“…GSTs are tested on the real small-size water system of Parete (a town with 10,800 inhabitants located in a densely populated area near Caserta, Italy) and on the synthetic medium-size water system of C-Town [48]. The main characteristics of both WDNs are reported in Table 3.…”

Section: Case Studymentioning

confidence: 99%

Applications of Graph Spectral Techniques to Water Distribution Network Management

Nardo

Giudicianni

Greco

et al. 2018

Water

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Cities depend on multiple heterogeneous, interconnected infrastructures to provide safe water to consumers. Given this complexity, efficient numerical techniques are needed to support optimal control and management of a water distribution network (WDN). This paper introduces a holistic analysis framework to support water utilities on the decision making process for an efficient supply management. The proposal is based on graph spectral techniques that take advantage of eigenvalues and eigenvectors properties of matrices that are associated with graphs. Instances of these matrices are the adjacency matrix and the Laplacian, among others. The interest for this application is to work on a graph that specifically represents a WDN. This is a complex network that is made by nodes corresponding to water sources and consumption points and links corresponding to pipes and valves. The aim is to face new challenges on urban water supply, ranging from computing approximations for network performance assessment to setting device positioning for efficient and automatic WDN division into district metered areas. It is consequently created a novel tool-set of graph spectral techniques adapted to improve main water management tasks and to simplify the identification of water losses through the definition of an optimal network partitioning.Two WDNs are used to analyze the proposed methodology. Firstly, the well-known network of C-Town is investigated for benchmarking of the proposed graph spectral framework. This allows for comparing the obtained results with others coming from previously proposed approaches in literature. The second case-study corresponds to an operational network. It shows the usefulness and optimality of the proposal to effectively manage a WDN.

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Battle of the Water Calibration Networks

Cited by 141 publications

References 26 publications

A Graph-Theoretic Framework for Assessing the Resilience of Sectorised Water Distribution Networks

A Graph-Theoretic Framework for Assessing the Resilience of Sectorised Water Distribution Networks

A Guideline for Successful Calibration and Uncertainty Analysis for Soil and Water Assessment: A Review of Papers from the 2016 International SWAT Conference

Applications of Graph Spectral Techniques to Water Distribution Network Management

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