Geoss Aip And Geoss Water Services,
2014
City University of New York (CUNY)
Geoss Aip And Geoss Water Services, Bart De Lathouwer, Douglas Cripe, David K. Arctur, David R. Maidment
International Conference on Hydroinformatics
The Global Earth Observation System of Systems (GEOSS) is being built through the coordination of efforts within the international Group on Earth Observations (GEO), a voluntary partnership established in February 2005, comprised of 89 Member States, the European Commission and 77 Participating Organizations. GEOSS is a global, distributed system accessible through the GEOSS Portal, including satellite observation systems and in situ networks and systems, which will deliver the benefits of Earth observations to both data & information providers and consumers world wide. The 10-Year Implementation Plan defines a vision statement for GEOSS, its purpose and scope, expected benefits for nine …
Linked Water Data For Water Information Management,
2014
City University of New York (CUNY)
Linked Water Data For Water Information Management, Edward Curry, Viktoriya Degeler, Eoghan Clifford, Daniel Coakley, Andrea Costa, Schalk-Jan Van Andel, Nick Van De Giesen, Christos Kouroupetroglou
International Conference on Hydroinformatics
The management of water consumption is hindered by low general awareness and absence of precise historical and contextual information. Effective and efficiency management of water resources requires a holistic approach considering all the stages of water usage. A decision support tool for water management services requires access to a number of different data domains and different data providers. The design of next-generation water information management systems poses significant technical challenges in terms of information management, integration of heterogeneous data, and real-time processing of dynamic data. Linked Data is a set of web technologies that enables integration of different data sources. …
A Cascade Of Models To Guide Reservoir Operations: Application On The Deadwood River System, Idaho, Usa,
2014
City University of New York (CUNY)
A Cascade Of Models To Guide Reservoir Operations: Application On The Deadwood River System, Idaho, Usa, Andrew W. Tranmer, Daniele Tonina, Peter Goodwin, Rohan Benjankar, Matthew G. Tiedemann, Paul Woods
International Conference on Hydroinformatics
Adaptive management strategies are increasingly being used by resource managers to optimize complex water delivery systems at the scale of entire watersheds. A variety of models have been proposed to evaluate systems in a piecemeal approach that often times operate at different spatial and temporal scales and prove difficult to integrate with associated field data. In the Deadwood River system of Central Idaho, a series of cascading models was utilized to examine potential impacts of reservoir operations on endangered resident bull trout. Results from integrating limnologic, temperature, nutrient, hyporheic, and hydraulic models show that reservoir operations must remain dynamic depending …
Numerical Simulation Of A Three Blade Marine Current Turbine,
2014
City University of New York (CUNY)
Numerical Simulation Of A Three Blade Marine Current Turbine, Xin Bai, Eldad J. Avital, Ante Munjiza, John J.R. Williams
International Conference on Hydroinformatics
Renewable energy usually refers to those natural sources of energy which are possible to use without diminishing the resource and the current European target is to source 20% of its energy from renewable sources by 2020. The marine current turbine (MCT) is an exciting proposition for the extraction of renewable tidal and marine current power. It is gaining momentum as a viable technology and is currently the subject of much attention and research. However, the numerical predication of the power performance of a marine current turbine under a free surface is difficult due to its complex geometry, fluid-structural interactions and …
Evaluating Alternative Water Allocation Policies Among Competing Users In Bow River Basin, Alberta, Canada,
2014
City University of New York (CUNY)
Evaluating Alternative Water Allocation Policies Among Competing Users In Bow River Basin, Alberta, Canada, Wei Xu, Nader Khoshroo, Henning Bjornlund
International Conference on Hydroinformatics
Demand for water from rivers and aquifers for consumptive use has grown greatly due to population and economic growth and changing lifestyle and dietary habits. Consequently, aquatic ecosystems, especially in semi-arid and arid regions across the world, suffer adverse environmental impacts of over-extraction. Historically, Alberta’s water allocation system has been based on the first-in-time-first-in-right (FITFIR) system, granting the preference to the licensees based on the seniority of their licenses. In recent years, scientists, policy makers, and water users have raised questions whether FITFIR will continue to be the most appropriate allocation system to manage increasing scarce water resources in Alberta. …
Optimizing Maritime Terminal Infrastructure Subject To Uncertainty,
2014
City University of New York (CUNY)
Optimizing Maritime Terminal Infrastructure Subject To Uncertainty, Michael John Francis Rustell, Aurora Orsini, Soon-Thiam Khu, Yaochu Jin, Ben Gouldby
International Conference on Hydroinformatics
This paper describes a hydroinformatic model for generating a Pareto set of LNG terminal layouts that are subject to uncertainty using a multi-objective genetic algorithm. The NSGAII is used to select parameters that propagate through a bespoke LNG terminal design algorithm which includes a Monte Carlo simulator to estimate the uncertainty in each concept. This allows the trade-off between cost and risk to be explored at the earliest stage of design. The results of a case study indicate that nearshore terminals typically have lower capital costs but higher maintenance costs and more uncertainty. The paper concludes that in the example …
Effects Of 2d And 1d Modeling On Mapping Aquatic Habitat Quality,
2014
City University of New York (CUNY)
Effects Of 2d And 1d Modeling On Mapping Aquatic Habitat Quality, Rohan Benjankar, Daniele Tonina, Jim Mckean
International Conference on Hydroinformatics
The distribution of aquatic habitat at the organism scale, i.e. 1 by 1m or smaller is typically predicted from local physical characteristics of stream flow, bed, banks and sediment characteristics and a set of biological preference curves. The flow properties are typically predicted with numerical modeling whereas stream bed and bank characteristics defined from interpolated DEM generated by topographical surveys and field observations. Information on the effects of flow properties and streambed morphology due to numerical modeling dimensionality on aquatic habitat modeling is limited. Two-dimensional (2D) modeling is becoming the most popular method to map micro-habitat but its application is …
Swatshare – A Web-Portal For Hydrology Research And Education Using Soil Water And Assessment Tool,
2014
City University of New York (CUNY)
Swatshare – A Web-Portal For Hydrology Research And Education Using Soil Water And Assessment Tool, Mohammad Adnan Rajib, Venkatesh Merwade, I Luk Kim, Shandian Zhe, Lan Zhao, Carol Song
International Conference on Hydroinformatics
Many hydrologic modelers around the world use Soil Water Assessment and Tool (SWAT) to simulate hydrologic processes, water quality loadings and testing agricultural management scenarios. Once these tasks are complete including publication of results, the models generally are not published or made available to the public for further use and improvement. Although publication or sharing of models is not required for journal publications, sharing of models may open doors for new collaborations, and avoids duplication of efforts if other researchers are interested in simulating a particular watershed for which a model already exists. For researchers, who are interested in sharing …
The Hydro-Modeling Platform (Hydromp) - Enabling Cloud-Based Environmental Modeling Using Software-As-A-Service (Saas) Cloud Computing,
2014
City University of New York (CUNY)
The Hydro-Modeling Platform (Hydromp) - Enabling Cloud-Based Environmental Modeling Using Software-As-A-Service (Saas) Cloud Computing, Ronghua Liu, Jiahua Wei, Haiyan Liu
International Conference on Hydroinformatics
Hydro-model has become important tool for water resources management, with higher demand in simulation precision and speed of decision support, models designed for sectoral application becoming outmoded, and original mode that massive schemes are run sequentially cannot meet the real-time requirements, especially with the computation increase by finer discretization granularity and broader research range. Water management organizations are increasingly looking for new generation tools that allow integration across domains, and can provide extensible computing resources to assist their decision making processes. In response to this need, a hydro-modeling platform(HydroMP) based on cloud computing is designed and implemented, which can deployed …
Development Of Real-Time Drinking Water Distribution Systems (Dwds) Modeling Technology Using The Epanet Extended Period Simulation (Eps) Modeling Toolkit,
2014
City University of New York (CUNY)
Development Of Real-Time Drinking Water Distribution Systems (Dwds) Modeling Technology Using The Epanet Extended Period Simulation (Eps) Modeling Toolkit, Sudhir Kshirsagar, Walter Grayman, Ben Chenevey, Aditi Shetti, Saurabh Gupta, Benjamin Bedinghaus, Steve Mylroie
International Conference on Hydroinformatics
Real-time hydraulic and water quality modeling involves the modification of the EPS network model every few minutes to reflect the SCADA data, and this paper shares how this type of real-time modeling framework, HydroTrek, was built on top of the EPS foundation provided by the EPANET toolkit. The real-life applications of HydroTrek posed some interesting modeling challenges when the hydraulic time-step was reduced to match the SCADA time-step of one to five minutes. For example, a physical pump usually does not instantaneously, but a model pump does. In a sensitive network, that can mean a significant mismatch between the SCADA …
Modularity Index For The Segmentation Of Water Distribution Networks,
2014
City University of New York (CUNY)
Modularity Index For The Segmentation Of Water Distribution Networks, Orazio Giustolisi, Luca Ridolfi
International Conference on Hydroinformatics
The search for suitable segmentations is a challenging issue for analysis, planning and management of water distribution networks (WDNs). In fact complex and large size hydraulic systems require the division into modules in order to simplify the analysis and the management tasks. In complex network theory, modularity index was proposed as a measure of the strength of the network division into communities. Nevertheless, modularity index needs to be revised considering the specificity of the hydraulic systems. Accordingly, the classic modularity index is firstly presented and, then, tailored and modified for WDNs. Furthermore, a multi-objective strategy for optimal segmentation is presented. …
On Real-Time Monitoring And Control For Efficient Management Of Drinking Water Networks: Barcelona Case Study,
2014
City University of New York (CUNY)
On Real-Time Monitoring And Control For Efficient Management Of Drinking Water Networks: Barcelona Case Study, Gabriela Cembrano, Vicenç Puig, Carlos Ocampo-Martinez, Joseba Quevedo, Josep M. Mirats, Jordi Meseguer, Ramon Ariño, Silvia López
International Conference on Hydroinformatics
Drinking water utilities in urban areas are focused on finding smart solutions facing new challenges in their real-time operation because of limited water resources, intensive energy requirements, a growing population, a costly and ageing infrastructure, increasingly stringent regulations, and increased attention towards the environmental impact of water use. Such challenges force water managers to monitor and control not only water supply and distribution, but also consumer demand. This paper presents and discusses novel methodologies and procedures towards an integrated water resource management system based on advanced ICT technologies of automation and telecommunications for largely improving the efficiency of drinking water …
Graphic User Interface To Preprocess Landsat Tm, Etm+ And Oli Images For Hydrological Applications,
2014
City University of New York (CUNY)
Graphic User Interface To Preprocess Landsat Tm, Etm+ And Oli Images For Hydrological Applications, Rafael Pimentel, Javier Herrero, María José Polo
International Conference on Hydroinformatics
Remote sensing techniques are powerful tools for the validation and data assimilation of GIS-based calculations of physical and distributed hydrological models. The high spatial resolution of Landsat TM, ETM+ and OLI, make this the most adequate satellite images for the study of hydrological processes in Mediterranean regions. Several levels of preprocessing are required to obtain validated reflectance values from these images. Generally, these steps include radiometric calibrations and an atmospheric correction. However, over complex terrain and for specific land covers such as snow, certain problems related to radiometric saturation and shadow effects must also be taken into account. This work …
Extension And Testing Of A 2d Hydrodynamic Model For Direct Rainfall Runoff Simulation,
2014
City University of New York (CUNY)
Extension And Testing Of A 2d Hydrodynamic Model For Direct Rainfall Runoff Simulation, Robert Klar, Stefan Achleitner, Simon Lumassegger, Markus Aufleger, Michael Hofer
International Conference on Hydroinformatics
While the simulation of flood risks originating from the overtopping of river banks is well covered within continuously evaluated programs to improve flood protection measures, flash flooding is not. Flash floods are triggered by short, local thunderstorm cells with high precipitation intensities. Small catchments have short response times and flow paths and convective thunder cells may result in potential flooding of endangered settlements. Assessing local flooding and pathways of flood requires a detailed hydraulic simulation of the surface runoff. Hydrological models usually do not incorporate surface runoff at this detailedness but rather empirical equations are applied for runoff detention. In …
An Optimization Model For Prioritizing Sewerage Maintenance Scheduling,
2014
City University of New York (CUNY)
An Optimization Model For Prioritizing Sewerage Maintenance Scheduling, Juan David Torres Turriago, Juan Pablo Rodriguez, Juan David Palacio
International Conference on Hydroinformatics
Water utility companies, responsible for providing water supply and sewerage services to the urban population, are constantly seeking to improve their service.In the case of sewer systems, effective scheduling of preventive maintenance of urban water infrastructure has been identified as an important activity in order to reduce costs and protect the integrity of citizens and the surrounding, both built and natural, environments. Consequently, with particular focus on Bogotá (Colombia), we developed an optimization model that generates a preventive maintenance plan on a set of zones withinthe city. These zones have in common a high failure probability over a defined time …
Pressure Fluctuations On The Slabs Of Stilling Basins Under Hydraulic Jump,
2014
City University of New York (CUNY)
Pressure Fluctuations On The Slabs Of Stilling Basins Under Hydraulic Jump, Abdollah Sobani
International Conference on Hydroinformatics
Although in the design of hydraulic structures generally the average characteristics is considered, but according to studies, use of this approach for the design of structures such as spillways and the stilling basins which are under the influence of turbulent flows and in other hand, the difference between the moment values of the parameters of the medium values, are impressive, is not recommended. Due to the enormous and costly construction and operating costs of such buildings, the study of fluctuation characteristics of the turbulent flow and their role in estimating the maximum tensile force is necessary and inevitable.
Catchment-Scale Water Quality Monitoring, Control And Management Framework Using Collaborative Wireless Sensor Networks,
2014
City University of New York (CUNY)
Catchment-Scale Water Quality Monitoring, Control And Management Framework Using Collaborative Wireless Sensor Networks, Huma Zia, Nick Harris, Geoff Merrett
International Conference on Hydroinformatics
Improving water quality is a global concern, with agricultural practices being the major contributors to reduced water quality. The reuse of nutrient-rich drainage water can be a valuable strategy to maximise water resources and gain economic-environmental benefits. Transmitting event information across a catchment, as the event occurs upstream, allows prediction of the outflow dynamics of the expected discharges downstream. Here, we propose a framework architecture which utilises increasingly common local farm-scale networks and other water-quality monitoring networks across a catchment, adding provision for collaborative information sharing. The key part is that individual networks learn their environment, predicting the impact of …
Urbanwater And Waterp: Decision Support Systems For Efficient And Integrated Water Resources Management,
2014
City University of New York (CUNY)
Urbanwater And Waterp: Decision Support Systems For Efficient And Integrated Water Resources Management, David Sancho, Alvaro Rodríguez, Rafael Sánchez-Diezma, Xavier Llort, Gabriel Anzaldi, Edgar Rubión, Aitor Corchero, Albert Rodríguez
International Conference on Hydroinformatics
In this work we present UrbanWater and WatERP, two EU-FP7 projects with the common objective of designing and developing innovative ICT solutions to integrate real-time knowledge on water demand and supply across water distribution networks. On one hand, WatERP proposes to develop a web-based Open Management Platform (OMP) supported by real-time knowledge on water supply and demand, enabling the entire water distribution system to be viewed in an integrated and customized way. The OMP provides inferred information regarding water supplies, flows, water consumption patterns, water losses, distribution efficiency, and water supply and demand forecasts to the user. This information is …
Integration Of Water Supply Distribution Systems By Using Interoperable Standards To Make Effective Decisions,
2014
City University of New York (CUNY)
Integration Of Water Supply Distribution Systems By Using Interoperable Standards To Make Effective Decisions, Gabriel Anzaldi, Wenyan Wu, Andreas Abecker, Edgar Rubión, Aitor Corchero, Ambreen Hussain, Michael Quenzer
International Conference on Hydroinformatics
This paper aims at presenting current standards used and their implementation to integrate different decision making tools spread throughout the Water Supply Distribution Chain. Nowadays in Europe the water supply distribution managers use many tools to perform their decisional processes and multiple data sources to aid in decision making which are totally unconnected and use different communication languages. The data and protocols heterogeneity provides a lack of fluidity in communications between the tools, and in many cases non-existent. An architectural proposal, which uses hydrologic standards, with the aim to offer a common way to interconnect existing tools and data to …
Causal Graph Discovery For Hydrological Time Series Knowledge Discovery,
2014
City University of New York (CUNY)
Causal Graph Discovery For Hydrological Time Series Knowledge Discovery, Piraporn Jangyodsuk, Dong-Jun Seo, Jean Gao
International Conference on Hydroinformatics
Causal inference or causal relationship discovery is an important task in hydrological study to explore the causes of abnormal hydrology phenomena such as drought and flood, which will help improving our prediction and response ability to natural disasters. Different from generic causality study where causalrelation discovery is sufficient, for extreme hydrological situation prediction and modeling, we need not only to construct a causal graph to reveal the contributing factors, but also to provide the lead time of each cause to its effect. Lead time is the time difference between the occurrence of lead and effect. Though causal inference or causal …
