Compromise Programming Based Scenario Analysis Of Urban Water Systems Management Options: Case Study Of Kerman City,
2014
City University of New York (CUNY)
Compromise Programming Based Scenario Analysis Of Urban Water Systems Management Options: Case Study Of Kerman City, Saeed Nazari, S. Jamshid Mousavi, Koroush Behzadian, Zoran Kapelan
International Conference on Hydroinformatics
Supplying adequate water for urban water systems (UWSs) suffering from lack of water resources has always been a major concern in urban water management. Integrated simulation models are useful tools for sustainable planning and management of UWSs. This paper presents an integrated, conceptual modeling approach for simulation and analysis of an UWS by which different envisaged scenarios of water demand and resources are assessed. Other than water flow, the simulation model quantifies flows of energy, GHG emissions and cost in UWS. The performance of the developed model is demonstrated through its application to the UWS of Kerman City located in …
Development And Application Of A Shallow Water Flow Model Hdm-2d,
2014
City University of New York (CUNY)
Development And Application Of A Shallow Water Flow Model Hdm-2d, Chang Geun Song, Il Won Seo, Jae Hyun Shin, In Hwan Park
International Conference on Hydroinformatics
In this study, an unsteady 2D depth-averaged flow model, HDM-2D was developed by employing the finite element algorithm. The shallow water equations were weighted by SU/PG test function of which the shape is deformed by the current direction to introduce balancing diffusion only in the flow direction. The nonlinearity of the discretized momentum equations was linearized by Newton-Raphson method. Triangular or rectangular element with C0 interpolation function can be mixed together in the construction of geometry and the linear set of equations was solved by frontal method. The HDM-2D features (1) the incorporation of secondary current effect by dispersion stresses; …
Software Tools For Large Scale Interactive Hydrodynamic Modeling,
2014
City University of New York (CUNY)
Software Tools For Large Scale Interactive Hydrodynamic Modeling, Gennadii Donchyts, Fedor Baart, Arthur Van Dam, Bert Jagers, Sander Van Der Pijl
International Conference on Hydroinformatics
Running hydrodynamic models interactively allows both visual exploration and change of model state during simulation. One of the main characteristics of an interactive model is that it should provide immediate feedback to the user, for example respond to changes in model state or view settings. For this reason, such features are usually only available for models with a relatively small number of computational cells, which are used mainly for demonstration and educational purposes. It would be useful if interactive modeling would also work for models typically used in consultancy projects involving large scale simulations. This results in a number of …
Minimum Data Requirements For Integrating Urban Development And Urban Water Infrastructure Models,
2014
City University of New York (CUNY)
Minimum Data Requirements For Integrating Urban Development And Urban Water Infrastructure Models, Christian Mikovits, Michael Mair, Wolfgang Rauch, Manfred Kleidorfer
International Conference on Hydroinformatics
Data quality and availability is a common problem in many modelling studies dealing with regional, spatially distributed case studies. This is true for both, urban development models and urban water management models. As current research in urban water management more and more tries to benefit from an integrated view of the performance of water networks in the context of dynamically growing and shrinking cities, this problem of data scarcity increases. Having different applications with different levels of details available, the question arises which data (and which temporal and spatial resolution) is really necessary to be collected in a modeling study …
Modeling Of District Metered Areas With Relatively High Leakage Rate. The Case Study Of Kalipoli’S Dma,
2014
City University of New York (CUNY)
Modeling Of District Metered Areas With Relatively High Leakage Rate. The Case Study Of Kalipoli’S Dma, Antonios Bakogiannis, Athanasios Tzamtzis
International Conference on Hydroinformatics
The article reviews the modelling of District Metered Areas (DMAs) with relatively high leakage rate. As a generally recognised approach in modelling of leakage does not exist, modelling of leakage by enginners and other researchers usually takes place by dividing the whole leakage rate evenly to all available nodes of the model. In this article, a new methodology is proposed to determine the nodal leakage by using a hydraulic model. The proposed methodology takes into consideration the IWA water balance methodology, the Minimum Night Flow (MNF) analysis, the number of connections related to each node and the marerial of pipes. …
A Web Based Water Resources Analysis Portal For Occoquan Watershed,
2014
City University of New York (CUNY)
A Web Based Water Resources Analysis Portal For Occoquan Watershed, Saurav Kumar, Adil Godrej, Thomas Grizzard, Harold Post, Justin Bartlett
International Conference on Hydroinformatics
In most of the developed world, water resources data, including both water quality and quantity, has been collected for decades. Such datasets are often used to calibrate water resources models that in turn are capable of producing large amounts of data useful for activities such as forecasting and risk analysis. Like many other domains (e.g., finance, marketing, etc.), significant education, extension, and policy making benefits may be had by building data analytics tools to derive knowledge from these datasets. The knowledge thus available may be turned into intelligence by policy makers and may also be used to enhance environmental education …
Development Of A Micro Water Grid (Mwg) Pilot Platform For Green Buildings,
2014
City University of New York (CUNY)
Development Of A Micro Water Grid (Mwg) Pilot Platform For Green Buildings, Su-Kwon Chae, Juneseok Lee, Hyun-Byung Chae
International Conference on Hydroinformatics
The objectives of this Micro Water Grid (MWG) pilot platform project are to i) address the need for reliable municipal water supplies, ii) identify and strengthen vulnerable water system elements, and iii) design an optimal micro water grid pilot platform for green buildings. This paper describes the overall context of the MWG and considers appropriate analytical methods for water demand, hydraulic analysis and decision models for optimal MWG pilot platforms. This is an on-going research project and various MWG design scenarios, along with numerical results, will be presented as the research progresses.
2d Mathematical Modeling For Fluvial Processes Considering The Influence Of Vegetation And Bank Erosion,
2014
City University of New York (CUNY)
2d Mathematical Modeling For Fluvial Processes Considering The Influence Of Vegetation And Bank Erosion, Yi Xiao, S.Y. Yang, J. Hu, W.J. Li, S.C. Tong, X. H. Fu
International Conference on Hydroinformatics
A 2D mathematical model for fluvial processes capable of considering the influence of vegetation and non-cohesive bank erosion is established based on a body-fitted coordinate system in this paper. The authors have improved a previously developed simulation model by taking into account the impact of vegetation with a vegetation stress term in the momentum conservation equation. A simple simulation method is adopted in the bank erosion model. Simulation runs were performed for a conceptual alluvial channel, the results of channel plan-form and cross section changes suggest that the 2D model predictions agree acceptable with the classic theories of channel pattern …
Gap Filling Based On A Quantile Perturbation Factor Technique,
2014
City University of New York (CUNY)
Gap Filling Based On A Quantile Perturbation Factor Technique, Diego E. Mora, Guido Wyseure, Patrick Willems
International Conference on Hydroinformatics
The presence of hydro-meteorological series gaps is a common problem in hydrological and water engineering applications. This is also the case for the Ecuadorian hydrological data-series, showing many gaps of short term duration. This study focuses on the Paute River Basin, in the Southern Ecuadorian Andes. It is one of the most monitored basins in Ecuador, with 25 rainfall observed sites during the period 1963 - 1990. These series suffer of about 20% of missing data. Two techniques were evaluated comparing their efficiency in the filling of missing gaps. The first one is a traditional one based on multiple linear …
Inverse Modeling Of Groundwater System Using Coupled Pso-Mlpg Techniques,
2014
City University of New York (CUNY)
Inverse Modeling Of Groundwater System Using Coupled Pso-Mlpg Techniques, Swathi Boddula, Eldho T I
International Conference on Hydroinformatics
The effective management of groundwater systems relies on the adequate knowledge of its hydro-geological parameters. In large aquifer systems, it is often computationally expensive to estimate the spatially distributed aquifer parameters. Inverse modeling of these parameters are usually required in simulation of flow and contaminant transport in the problem domain for its meaningful system prediction. In the present study, a new approach for inverse modeling is adopted based on Meshless Local Petrov Galerkin (MLPG) flow simulation model which is coupled with Particle Swarm Optimization (PSO) model. MLPG is one of the meshless techniques, which are recently developed to solve many …
Effective Ami System Based On Multi-Channel Cluster,
2014
City University of New York (CUNY)
Effective Ami System Based On Multi-Channel Cluster, Seok Rak Kang, Byoung Sup Shim, Seok Jun Choi, Ji Hyoung Yi, Kyung Taek Yum
International Conference on Hydroinformatics
Recently, high-efficient, next-generation infrastructure system using information communication technology is increasingly required to overcome limitation of water resource management, and Smart Water Grid is being developed to resolve imbalance by effectively allocating, managing and carrying water resources. Therefore, the article aims to enhance efficiency of management through physical, logical consumer channel clustering and reliability on metering reading data, and achieve expandability of wireless metering reading network through channel use that can be identified between proximate clusters, by suggesting channel set-up based on multichannel cluster mixed with network channel and group channel to resolve the problems stated above and implement various …
Ndvi With Artificial Neural Networks For Srtm Elevation Model Improvement – Hydrological Model Application,
2014
City University of New York (CUNY)
Ndvi With Artificial Neural Networks For Srtm Elevation Model Improvement – Hydrological Model Application, Dadiyorto Wendi, Yabin Sun, Chi Dung Doan, Shie-Yui Liong, Richard Sanders, Timothy Fewtrell
International Conference on Hydroinformatics
Digital elevation model (DEM) plays a substantial role in hydrological study, from understanding the catchment characteristics, setting up a hydrological model to mapping the flood risk in the region. Depending on the nature of study and its objectives, high resolution and reliable DEM is often desired to set up a sound hydrological model. However, such source of good DEM is not always available and it is generally high-priced. Obtained through radar based remote sensing, Shuttle Radar Topography Mission (SRTM) is a publicly available DEM with resolution of 92m outside US. It is a great source of DEM where no surveyed …
Data Mining For Design Flood Prediction,
2014
City University of New York (CUNY)
Data Mining For Design Flood Prediction, James E. Ball
International Conference on Hydroinformatics
Design flood estimation remains a problem for many professionals involved in the management of rural and urban catchments. Advice is required regarding design flood characteristics for many design problems including the design of culverts and bridges necessary for cross drainage of transport routes, the design of urban drainage systems, the design of flood mitigation levees and other flood mitigation structures, design of dam spillways, and many environmental flow problems. When a risk based approach is adopted as the design paradigm, there is a need to predict both the magnitude of the hazard and the exceedance probability of the hazard. In …
Enhancing Water Quality Data Service Discovery And Access Using Standard Vocabularies,
2014
City University of New York (CUNY)
Enhancing Water Quality Data Service Discovery And Access Using Standard Vocabularies, Jonathan Yu, Bruce A. Simons, Nicholas J. Car, Simon J.D. Cox
International Conference on Hydroinformatics
There is a growing need for consistency across the publishing, discovering, integrating and access to scientific datasets, such as water quality data. Such datasets may have varying formats and service interfaces. The Network Common Data Form (NetCDF) is both a software package and a data format for producing array-oriented scientific data, which is commonly used to exchange data, including water quality data. NetCDF datasets are also published through service interfaces using the THREDDS data server. Alternatively water quality datasets can be encoded with standard XML formats such as WaterML 2.0, which can be published with services such as the Open …
Modelling And Validation Of The Santa Catarina Island Bays Hydrodynamics Based On Astronomic Tides And Measured Tides,
2014
City University of New York (CUNY)
Modelling And Validation Of The Santa Catarina Island Bays Hydrodynamics Based On Astronomic Tides And Measured Tides, Luis Hamilton Pospissil Garbossa, Argeu Vanz, Luis Daniel Fachada Fernandes, Robson Ventura De Souza, Luiz Fernando Vianna, Guilherme Sabino Rupp
International Conference on Hydroinformatics
Santa Catarina Island bays (SCI bays) has a great economic and social importance in the region. With more than 700.000 habitants in its surroundings, besides touristic and fishery activities, it represents approximately 70% of the Brazilian bivalve shellfish production. In order to understand processes controlling the water quality and food availability, relevant for the shellfish production, it is unquestionably important to understand the main hydrodynamics patterns of SCI Bay. Thus, a hydrodynamic assessment study of the SCI bays was carried out using the numerical model MOHID. The model was implemented using bathymetric information obtained from Brazilian nautical charts, two tide …
Development Of A Cloud Computing Application For Water Resources Modelling And Optimization Based On Open Source Software,
2014
City University of New York (CUNY)
Development Of A Cloud Computing Application For Water Resources Modelling And Optimization Based On Open Source Software, Blagoj Delipetrev, Andreja Jonoski, Dimitri P. Solomatine
International Conference on Hydroinformatics
Cloud computing is the latest advancement in Information and Communication Technology (ICT) that provides computing as a service or delivers computation, software, data access, storage service without end-user knowledge of the physical location and system configuration. Cloud computing, service oriented architecture and web geographic information systems are new technologies for development of the cloud computing application for water resources modelling and optimization. The cloud application is deployed and tested in a distributed computer environment running on three virtual machines (VMs). The cloud application has five web services for: (1) spatial data infrastructure – 1 (SDI), (2) SDI – 2, (3) …
A Particle Dispersion Model For Analysis Of Two-Dimensional Mixing In Open Channels,
2014
City University of New York (CUNY)
A Particle Dispersion Model For Analysis Of Two-Dimensional Mixing In Open Channels, Il Won Seo, In Hwan Park
International Conference on Hydroinformatics
Pollutant mixing in natural rivers is analyzed by using the two-dimensional depth-averaged advection-dispersion model (2D ADE) for rapid completion of the vertical mixing. The dispersion term in the 2D ADE follows Taylor’s assumption (Taylor, 1954; Fischer et al., 1979) which can be applied in the Taylor period. However, most open channel flow has long initial period which makes the skewed concentration distribution due to the unbalance between the shear flow advection and the vertical mixing (Chatwin, 1970). Therefore, the non-Fickian dispersion model is necessary to compensate the limitations of the 2D ADE model. In this research, the two-dimensional particle dispersion …
Separation Of Soil Evaporation And Vegetation Transpiration By Modis Data For Central And Northern China,
2014
City University of New York (CUNY)
Separation Of Soil Evaporation And Vegetation Transpiration By Modis Data For Central And Northern China, Tingting Li, Jinhui Jeanne Huang
International Conference on Hydroinformatics
Evapotranspiration(ET) plays a crucial role in the hydrologic system. To estimate evapotranspiration quantitatively in a large scale, remote sensing data has been used in a number of models and shows its applicability in the estimation of evapotranspiration. In this paper, evapotranspiration for central and northern China was derived from MODIS data. In arid and semi-arid regions, soil evaporation can be considered as the minimum water requirement for bare area, while evapotranspiration can be considered as the minimum water demand for the area covered by vegetation. Hence the separation of soil evaporation and vegetation transpiration is valuable for efficient water resources …
Pcswmm Real Time Flood Forecasting – Toronto, Canada,
2014
City University of New York (CUNY)
Pcswmm Real Time Flood Forecasting – Toronto, Canada, Mark Randall, Rob James, William James, Karen Finney, Michael Heralall
International Conference on Hydroinformatics
Flooding in urban areas can cause significant property damage and human injury. Recent extreme precipitation events in the Toronto area have highlighted the need for enhanced warning systems to inform decision making prior to a storm’s arrival. To improve the accuracy and lead time of flood forecasting, Computational Hydraulics International and the Toronto and Region Conservation Authority have developed a high resolution, deterministic, physically-based remote-sensing real-time flood forecasting and web-based decision support system, and applied it to the Don River and Etobicoke Creek watersheds. Using PCSWMM Real-Time, NEXRAD radar data, US EPA SWMM5, HTML5 and Google Maps the system forecasts …
Reconstruction Of Paleo-Hydrologic Data For Vulnerability Assessment Of Water Resources Systems,
2014
City University of New York (CUNY)
Reconstruction Of Paleo-Hydrologic Data For Vulnerability Assessment Of Water Resources Systems, Saman Razavi, Amin Elshorbagy, Howard Wheater, David Sauchyn
International Conference on Hydroinformatics
Tree-ring chronologies are a rich source of information of past climate-driven non-stationarities in hydrologic variables. They are typically directly related to available water in respective years, thereby providing a basis for paleo-hydrology reconstruction. This study investigates the time series of tree-ring chronologies, with the objective of identifying the spatiotemporal patterns and extents of non-stationarities, which are essentially representations of past “climate changes”. This study also generates ensembles of moving-average streamflow time series for the centuries prior to the period of observational record. The major headwater tributaries of the Saskatchewan River basin (SaskRB), the main source of surface water in the …
