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2014

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Articles 151 - 180 of 769

Full-Text Articles in Water Resource Management

Hidromet: A Cloud-Based Ews Platform For Real Time Urban Flood Warning, Alvaro Rodríguez, Xavier Llort, David Sancho, Rafael Sánchez-Diezma, Ramon Bella, Vicente Gomez Aug 2014

Hidromet: A Cloud-Based Ews Platform For Real Time Urban Flood Warning, Alvaro Rodríguez, Xavier Llort, David Sancho, Rafael Sánchez-Diezma, Ramon Bella, Vicente Gomez

International Conference on Hydroinformatics

Urban real time flood’s Early Warning Systems have been traditionally based on the use of punctual precipitation observations (raingauges) to model the sewer network’s behaviour by means of hydraulic models. Since a key issue in the EWS is the leadtime in detecting potential risks, Hidromet takes advantage of radar nowcasting techniques to feed a hydraulic model, not only with observed precipitation by raingauges, but also with forecasted precipitation for the following few hours. Radar nowcasting techniques allow forecasting the precipitation with a high degree of accuracy. This fact, together with the rapid update of the forecasts (typically around 10 minutes), …

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Data-Driven Surrogate Models For Flood Defence Failure Estimation : “Jarillon” Of Cali, Colombia Case Study, Juan Aguilar, Jord Warmink, Ralph Schielen, Suzanne Hulscher Aug 2014

Data-Driven Surrogate Models For Flood Defence Failure Estimation : “Jarillon” Of Cali, Colombia Case Study, Juan Aguilar, Jord Warmink, Ralph Schielen, Suzanne Hulscher

International Conference on Hydroinformatics

The city of Cali is the main urban center of the south-western part of Colombia. It is located along the Cauca river, the second largest in the country. At the moment, the embankment located along the left margin that protects the city is designed for a return period of 100 years. In this study is intended to make a probabilistic analysis for dike failure for the present state of this flood defence. The water levels inside the main stream are highly sensitive to the peak discharge of upstream near tributaries which must be included in the analysis. An existent hydrodynamic …

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Volunteered Geographic Information For Water Management: A Prototype Architecture, Maria Antonia Brovelli, Luca Dotti, Marco Minghini, Massimo Pancaldi, Giorgio Zamboni Aug 2014

Volunteered Geographic Information For Water Management: A Prototype Architecture, Maria Antonia Brovelli, Luca Dotti, Marco Minghini, Massimo Pancaldi, Giorgio Zamboni

International Conference on Hydroinformatics

Driven by Web 2.0 technology and the almost ubiquitous presence of mobile devices, Volunteered Geographic Information (VGI) is knowing an unprecedented growth. These notable technological advancements have opened fruitful perspectives also in the field of water management and protection, raising the demand for a reconsideration of policies which also takes into account the emerging trend of VGI. This research investigates the opportunity of leveraging such technology to involve citizens equipped with common mobile devices (e.g. tablets and smartphones) in a campaign of report of water-related phenomena. The work is carried out in collaboration with ADBPO - Autorità di bacino del …

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Hydrodynamic And Water Quality Surrogate Modeling For Reservoir Operation, Juan Aguilar, Schalk-Jan Van Andel, Micha Werner, Dimitri P. Solomatine Aug 2014

Hydrodynamic And Water Quality Surrogate Modeling For Reservoir Operation, Juan Aguilar, Schalk-Jan Van Andel, Micha Werner, Dimitri P. Solomatine

International Conference on Hydroinformatics

A methodology is developed for reservoir release decisions considering forecasted downstream dissolved oxygen local conditions. River water quality management using reservoirs focuses mainly on how to develop a release schedule that may improve downstream conditions based on the seasonal change of the water quality within the reservoir. This improvement, however does not take into account the downstream local water quality state, which in certain cases might be more important, as the pollutant load downstream could be diluted with the upstream available volume released from the reservoir. Field sampling collected data suggest that the dissolved oxygen concentration decay produced by polluted …

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Evaluating North Sea Water Level Monitoring Network Considering Uncertain Information Theory Quantities, Leonardo Alfonso, Elena Ridolfi, Sandra Gaytan, Francesco Napolitano, Fabio Russo Aug 2014

Evaluating North Sea Water Level Monitoring Network Considering Uncertain Information Theory Quantities, Leonardo Alfonso, Elena Ridolfi, Sandra Gaytan, Francesco Napolitano, Fabio Russo

International Conference on Hydroinformatics

Information-theory provides, among others, conceptual methods to quantify the amount of information contained in a random variable, as well as methods to quantify the amount of information contained and shared among two or more variables. Although these concepts have been successfully applied in Hydrology and other fields, the valuation of these quantities is sensible to different parameters used to estimate the probabilities that underline the entropy concept. Typical examples are the bin size of histograms used to compute probabilities and the Kendall correlation coefficient used to estimate copula entropy. The selection of these parameters has subsequent effects on other Information …

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Model Predictive Control Of Water Levels In A Navigation Canal Affected By Resonance Waves, Klaudia Horváth, Eric Duviella, Mihály Petreczky, Lala Rajaoarisoa, Karine Chucket Aug 2014

Model Predictive Control Of Water Levels In A Navigation Canal Affected By Resonance Waves, Klaudia Horváth, Eric Duviella, Mihály Petreczky, Lala Rajaoarisoa, Karine Chucket

International Conference on Hydroinformatics

In order to operate navigation canals several requirements need to be met: keeping minimum ecological flow, flood protection, but also for safe operation the water level has to be kept within a certain range around the normal navigation level. The water level is disturbed by several factors: known (measured tributaries) and unknown (unknown tributaries, rain) inputs. However, the most important one is the operation of the locks. If the navigation reach is bounded by locks that overcome large elevation differences, their operation can create big disturbances. These locks should be operated fast enough to allow the crossing of several boats, …

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Offset Free Model Predictive Control Of An Open Water Reach, Boran Ekin Aydin, Peter-Jules Van Overloop, Xin Tian Aug 2014

Offset Free Model Predictive Control Of An Open Water Reach, Boran Ekin Aydin, Peter-Jules Van Overloop, Xin Tian

International Conference on Hydroinformatics

Model predictive control (MPC) is a powerful tool which is used more and more to managing water systems such as reservoirs over a short-term prediction horizon. However, due to unknown disturbances present in the water system and other uncertainties, there is always a mismatch between the model and the actual system. To overcome this mismatch and achieve offset free control of the water system, the internal model of the MPC is updated by adding the disturbance dynamics of the actual system by means of a disturbance model. In this paper, the conditions to achieve offset free control for an open …

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Hydrauric Analysis On Water Stage Change Along The Submerged Weir And Tides Effect In Han River, Suk-Hwan Jang, Ji-Hwan Oh, Hong-Soo Kim, Man-Kyu Song, Dal-Sik Woo Aug 2014

Hydrauric Analysis On Water Stage Change Along The Submerged Weir And Tides Effect In Han River, Suk-Hwan Jang, Ji-Hwan Oh, Hong-Soo Kim, Man-Kyu Song, Dal-Sik Woo

International Conference on Hydroinformatics

Sinkok submerged weir in Han river, Seoul Korea was built in early 1980’s for the purpose of water level maintenance and protection from sea water intrusion from the estuary. Its length is almost 1 km and 2.4 meter height which has two composite structures of rigid and movable weir. Huge wetland developed as the results of weir construction just down to the weir. However, recently social conflicts for the weir removal occurred for the river rehabilitation and aqua-eco system recover. This study focused on hydraulic analysis, especially water level changes in terms of with and without submerged weir along the …

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Water Resources Policy Development Using Hydrologic And Systems Dynamics Modeling – A Case Study For East Africa, Lauren Gies, Buyung Agusdinata, Venkatesh Merwade Aug 2014

Water Resources Policy Development Using Hydrologic And Systems Dynamics Modeling – A Case Study For East Africa, Lauren Gies, Buyung Agusdinata, Venkatesh Merwade

International Conference on Hydroinformatics

Drought is a natural disaster that affects millions of people across the globe. Lack of rainfall reduces crop yields and livestock productivity and in turn, food availability and income. In developing countries, these effects are even more detrimental. As droughts become more frequent, adaptation is a fundamental concern for countries and their policy makers. Hydrologic and system dynamics models were developed for a region in East Africa, focused on the Horn of Africa (ie. a region bordering Kenya, Somalia, and Ethiopia), an area well-known for frequent droughts due to unpredictable rainfall and high temperatures. The models simulate the interdependencies between …

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Exploring Behavioral Economics Concepts In Flood Forecast Decision-Making Under Uncertainty, Leonardo Alfonso, Schalk-Jan Van Andel Aug 2014

Exploring Behavioral Economics Concepts In Flood Forecast Decision-Making Under Uncertainty, Leonardo Alfonso, Schalk-Jan Van Andel

International Conference on Hydroinformatics

This research presents further exploration of the results obtained during the decision-making game “Do probabilistic forecasts lead to better decisions?”, which Ramos et al (2012) conducted at the EGU General Assembly 2012 in the city of Vienna. In that game, several cases of flood forecasts with and without uncertainty information were presented to the participants, together with choices of actions to take. As decision-makers, they had to decide whether to open or not a gate which was the inlet of a retention basin designed to protect a town and face the consequences of making a bad decision: if they decided …

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The Research And Application Of Remote Sensing Monitoring Method Of Actual Irrigated Area, Zhenyan Yi, Hongli Zhao, Yunzhong Jiang, Zhiguo Gan Aug 2014

The Research And Application Of Remote Sensing Monitoring Method Of Actual Irrigated Area, Zhenyan Yi, Hongli Zhao, Yunzhong Jiang, Zhiguo Gan

International Conference on Hydroinformatics

The value of actual irrigated area is an important indicator of irrigation water management, but due to wide space range of irrigated district, ground manual monitoring is very difficult to achieve. Remote sensing methods have a wide rapid coverage, high efficiency, real-time, objective and other advantages, which can be used to solve the difficulties in monitoring irrigated area. In this paper, a remote sensing monitoring method of irrigated area based on modified perpendicular drought index (MPDI) is researched and the differential thresholds for distinguishing irrigation are analyzed and proposed. The method was applied to 5 rounds of actual irrigated area …

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Developing A Hydrologic Information System: Towards Promoting Sustainable Standardization, Abbas Fayad, Ibrahim Alameddine, Majdi Abou Najm, Mutasem El-Fadel Aug 2014

Developing A Hydrologic Information System: Towards Promoting Sustainable Standardization, Abbas Fayad, Ibrahim Alameddine, Majdi Abou Najm, Mutasem El-Fadel

International Conference on Hydroinformatics

Water quantity and quality monitoring plays a key role towards the development of a sustainable water sector. The required infrastructure needed to monitor and manage surface and groundwater systems are often lacking particularly in developing countries. When available, water quantity and quality data are invariably fragmented, intermittent, not shared, with deficient metadata, and stored in formats that hinder establishing seamless coupling with hydrological models. Most data are saved locally with little attention placed on defining and maintaining metadata on the collection protocols, geographic referencing, measurement accuracy, resolution, detection limits, and data censorship. These limitations present serious challenges in reaching sound …

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Development Of Water Meter For Secure Communication In The Advanced Metering Infrastructure, Sugwon Hong, Hyung Mo Park Aug 2014

Development Of Water Meter For Secure Communication In The Advanced Metering Infrastructure, Sugwon Hong, Hyung Mo Park

International Conference on Hydroinformatics

The Advanced Metering Infrastructure (AMI) is one of the integral components of the smart water grid where water consumption data is collected, stored, and transferred to the utility Meter Data Management System (MDMS). The organizations which are directly involved in promoting and developing the Smart Water Grid have tried to figure out the operating scenarios in the overall domain from the smart meters up to MDMS, and logical/physical components that should be expected to exist to perform those operations in the full extent. One of the daunting tasks in realizing the services in the AMI is the security issue. Unlike …

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A Resource Centric Approach For Advancing Collaboration Through Hydrologic Data And Model Sharing, David G. Tarboton, Ray Idaszak, Jeffery S. Horsburgh, Jefferson Heard, Dan Ames, Jonathan L. Goodall, Lawrence E. Band, Venkatesh Merwade Aug 2014

A Resource Centric Approach For Advancing Collaboration Through Hydrologic Data And Model Sharing, David G. Tarboton, Ray Idaszak, Jeffery S. Horsburgh, Jefferson Heard, Dan Ames, Jonathan L. Goodall, Lawrence E. Band, Venkatesh Merwade

International Conference on Hydroinformatics

HydroShare is an online, collaborative system being developed for open sharing of hydrologic data and models. The goal of HydroShare is to enable scientists to easily discover and access hydrologic data and models, retrieve them to their desktop or perform analyses in a distributed computing environment that may include grid, cloud or high performance computing model instances as necessary. Scientists may also publish outcomes (data, results or models) into HydroShare, using the system as a collaboration platform for sharing data, models and analyses. HydroShare is expanding the data sharing capability of the CUAHSI Hydrologic Information System by broadening the classes …

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Coupling Spatial And Time Scales In The Hydrological Modelling Of Mediterranean Regions: Wimmed, Javier Herrero, Agustín Millares, Cristina Aguilar, Marta Egüen, Miguel A. Losada, María José Polo Aug 2014

Coupling Spatial And Time Scales In The Hydrological Modelling Of Mediterranean Regions: Wimmed, Javier Herrero, Agustín Millares, Cristina Aguilar, Marta Egüen, Miguel A. Losada, María José Polo

International Conference on Hydroinformatics

Mediterranean catchments usually exhibit strong gradients of both weather variables at different time scales and soil uses, which add complexity to their hydrological modelling, especially in mountainous areas. WiMMed (Water integrated Management model for Mediterranean regions) model was designed to include such variability of scales in an operational suite capable of connecting GIS-based representations of the catchment (soil characteristics and uses, vegetation cover and snow dynamics) with advanced algorithms for simulating the energy and water balance on a physical basis. Widely used throughout the South of Spain, WiMMed efficiently represents the spatial patterns of precipitation, temperature, solar radiation, and evapotranspiration …

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Rediscovering Manning’S Equation Using Genetic Programming, Carlos F. Gaitan Aug 2014

Rediscovering Manning’S Equation Using Genetic Programming, Carlos F. Gaitan

International Conference on Hydroinformatics

Open-channel hydraulics’ (OCH) research traditionally links empirical formulas to observational data. One of the most common equations in OCH is Manning’s formula for open channel flow (Q) driven by gravity (also known as the Gauckler-Manning-Strickler formula). The formula relates the cross-sectional average velocity (V=Q/A), the hydraulic radius (R), and the slope of the water surface (S) with a friction coefficient n, characteristic of the channel’s surface. Here we show a practical example where Genetic Programming (GP), a technique derived from Bioinformatics, can be used to derive an empirical relationship based on different synthetic datasets of the aforementioned parameters. Specifically, we …

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Cloud Computing Solutions For Aiding Urban Water Management, Peter Cheung, Vinicius Battistelli Lemos, Bruno Andrade Aug 2014

Cloud Computing Solutions For Aiding Urban Water Management, Peter Cheung, Vinicius Battistelli Lemos, Bruno Andrade

International Conference on Hydroinformatics

The management of Urban Water Systems is a complex problem to not only under viewpoint of water supply but also storm water and sewer systems. Growth of urban areas, rise of the social class and economic empowerment of population mainly in developing countries have caused significant changes under water cycle. Several tools are needed to help water managers in the decision making process. In addition, the availability of these tools may be helpful in providing the regulatory body of rational frameworks for the policy-level decisions. Considering last advances of Information Technology (IT), such as the development of multi-core processors, virtualization, …

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An Artificial Neural Network-Based Rainfall Runoff Model For Improved Drainage Network Modelling, David Walker, Edward C. Keedwell, Dragan A. Savić, Richard Kellagher Aug 2014

An Artificial Neural Network-Based Rainfall Runoff Model For Improved Drainage Network Modelling, David Walker, Edward C. Keedwell, Dragan A. Savić, Richard Kellagher

International Conference on Hydroinformatics

Modelling rainfall-runoff processes enables hydrologists to plan their response to flooding events. Urban drainage catchment modelling requires rainfall-runoff models as a prerequisite. In the UK, one of the main software tools used for drainage modelling is InfoWorks CS, based on relatively simple methods which are relatively robust in predicting runoff. This paper presents an alternative approach to modelling runoff that will allow for the complex inter-relation of runoff that occurs from impermeable areas, permeable areas, local surface storage and variation in rainfall induced infiltration. Apart from the uncertainties associated with the measurement of connected surfaces to the drainage system, the …

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Modelling Of Thermal Energy Balance In Sewer Systems, Jan Hofman, Martin Bloemendal, Bas Wols, Claudia Agudelo-Vera, Jorge Elias Maxil, Pascal Boderie, Mark Nijman, Jan Peter Van Der Hoek Aug 2014

Modelling Of Thermal Energy Balance In Sewer Systems, Jan Hofman, Martin Bloemendal, Bas Wols, Claudia Agudelo-Vera, Jorge Elias Maxil, Pascal Boderie, Mark Nijman, Jan Peter Van Der Hoek

International Conference on Hydroinformatics

Warm water is an important factor in the water and energy nexus. The energy used to produce warm tap water is often 10 times higher than the operational energy to produce and distribute drinking water and to collect and treat wastewater together. Once used in a shower, bath or laundry machine, the hot water is disposed into the sewer system. For modern homes in The Netherlands this is 30-50 % of the total heat loss. Heat recovery from sewer systems may therefore be an interesting option to reduce water use related energy. In this study a model was developed to …

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Parallel Numerical Modeling Of Two-Phase Flow Process In Porous Medium, Wenginq Wang, Björn Zehner, Norbert Boettcher, Uwe-Jens Goerke, Olaf Kolditz Aug 2014

Parallel Numerical Modeling Of Two-Phase Flow Process In Porous Medium, Wenginq Wang, Björn Zehner, Norbert Boettcher, Uwe-Jens Goerke, Olaf Kolditz

International Conference on Hydroinformatics

CO2 storage in geological formations is a promising technology under debate for reducing carbon dioxide emission into the atmosphere. Numerical simulation can help assessing the feasibility of this technology if real geological systems can be analyzed numerically. To this purpose, extremely high computational power is necessary to approach reality. In this work, a parallel computing technique is presented for the numerical simulation of two-phase flow processes in porous media for large scale applications of CO2 storage. The Galerkin finite element method is used to solve the initial boundary value problem arising from the underlying mathematical model. The PETSc package is …

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A Foss Based Web Geo- Service Architecture For Data Management In Complex Water Resources Contexts, Maria Antonia Brovelli, Carolina Arias, Matteo Giuliani, Andrea Castelletti Aug 2014

A Foss Based Web Geo- Service Architecture For Data Management In Complex Water Resources Contexts, Maria Antonia Brovelli, Carolina Arias, Matteo Giuliani, Andrea Castelletti

International Conference on Hydroinformatics

Advances in environmental monitoring systems from remote sensing to pervasive real and virtual sensor networks are enlarging the amount and types of data available at local and global scale at increasingly higher temporal and spatial resolution. However, accessing and integrating these data for modeling and operational purposes can be challenging and highly time consuming, particularly in complex physical and institutional contexts, where data are from different sources. This research focuses on the design of a web geo- service architecture, based on Free and Open Source Software (FOSS), to enable collection and sharing of data coming from complex water resources domains …

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Hydrometeorological Data Collection, Publication And Analysis Using Open-Source Hardware And Software, Paul Celicourt, Michael Piasecki Aug 2014

Hydrometeorological Data Collection, Publication And Analysis Using Open-Source Hardware And Software, Paul Celicourt, Michael Piasecki

International Conference on Hydroinformatics

Hydrometeorological data is exiguous in developing countries due to the exorbitant price of actual weather monitoring systems acquisition and communication infrastructure built mostly in developed countries. Another impediment to large scale data collection in developed countries is the lack or limited local resources to ensure the maintenance of stations equipments. However, recent advanced progresses made in information and communication technologies have paved the way to access to a large set of free software and low-cost and low-power hardware to sense and monitor the environment. Many researchers and practitioners have grasped the opportunities offered by those technological advances, but, have applied …

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Development Of A Stormwater Low Impact Development Planning Tool For The Province Of Ontario, Canada, James Li, Zhi Zheng Aug 2014

Development Of A Stormwater Low Impact Development Planning Tool For The Province Of Ontario, Canada, James Li, Zhi Zheng

International Conference on Hydroinformatics

Stormwater low impact development practices (LID) are lot-level measures which reduce runoff from lots and roads. Although there are many LID planning tools available (ranging from watershed, city, and site levels), it is not easy to find one that is appropriate for development of a LID site plan in Ontario. In particular, the Province of Ontario’s LID performance requirements are based on long-term average annual runoff and pollutant loading reduction. After a review of 16 LID planning tools in North America, it was found that 70% of these tools are site or city level and outputs from these tools include …

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Towards A Decision Support System For Flood Management In A River Basin, Luis Vieira, Jose Pinho, Dirk Schwanenberg Aug 2014

Towards A Decision Support System For Flood Management In A River Basin, Luis Vieira, Jose Pinho, Dirk Schwanenberg

International Conference on Hydroinformatics

The world is experiencing a countless number of impressive and devastating floods causing a range of health impacts and risks with hundreds of thousands of people losing their lives or becoming homeless in a matter of hours. EU Floods Directive requires the developing of flood hazard maps, which may include information on hydrological and hydrodynamics characteristics of vulnerable regions, i.e. inundated areas and river flow discharges. Prediction of flood events can accurately be achieved by applying mathematical modelling for describing rainfall-runoff phenomena as well as surface waters hydrodynamics. Moreover, reservoirs can be properly operated in order to minimize flood events …

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Influence Of The Rainfall Movement On The Required Volume Of Storage Reservoirs, Maciej Mrowiec Aug 2014

Influence Of The Rainfall Movement On The Required Volume Of Storage Reservoirs, Maciej Mrowiec

International Conference on Hydroinformatics

Temporal and spatial variability of rainfalls have a significant impact on the operation of urban drainage systems. Stormwater retention reservoirs are particularly sensitive to these variations. This paper presents the results of research on the impact of the direction and speed of rainfall movement over an urban catchment (of total area 560ha) on required volume of the retention reservoir. Calibrated hydrodynamic model has been used to simulate rainstorms movement (software: SWMM5). The whole catchment was divided into sectors of 600´600m, which facilitated the calculation of time shift between sectors for assumed speeds of rainfall movement (vop= 2, 5 and 10 …

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Long-Term Effects Of River Bed Variations Downstream Of The Shihmen Reservoir Due To Climate Change, Cheng-Chia Huang, Jihn-Sung Lai, Fong-Zuo Lee, Sheen-Yeong Kang, Shang-Shu Shih, Gwo-Wen Hwang, Gwo-Fong Lin Aug 2014

Long-Term Effects Of River Bed Variations Downstream Of The Shihmen Reservoir Due To Climate Change, Cheng-Chia Huang, Jihn-Sung Lai, Fong-Zuo Lee, Sheen-Yeong Kang, Shang-Shu Shih, Gwo-Wen Hwang, Gwo-Fong Lin

International Conference on Hydroinformatics

Most rivers in Taiwan are suffered from serious sedimentation problems due to extreme weather in recent years. In order to decrease sediment trap in Shihmen Reservoir, the reservoir sediment was effluent into downstream river during flood period. The river sediment deposition and erosion would be thus more violent. The quasi-two dimensional model, NETSTARS, was applied to investigate hydraulic characteristics and corresponding river sedimentation behavior in Da-Han basin. The model was calibrated and verified with field survey data and then was utilized to predict the spatial and temporal variations of downstream suspended solid concentration. Through investigating the change of suspended solid …

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Would Bangkok Be More Vulnerable To The Anticipated Changing Climate?, Thannob Aribarg, Minh Tue Vu, Siriporn Supratid, Seree Supratid, Shie-Yui Liong Aug 2014

Would Bangkok Be More Vulnerable To The Anticipated Changing Climate?, Thannob Aribarg, Minh Tue Vu, Siriporn Supratid, Seree Supratid, Shie-Yui Liong

International Conference on Hydroinformatics

The severe flooding in Thailand in 2011 was triggered by the tropical storm Nock-ten at end of July along the Mekong and Chao Phraya river basin. There are 4 additional storms that caused medium to heavy rainfall from June to October in the north and north-east of Thailand. Due to limited capacity of the Chao Phraya river and also Pasak river, several overbank flows occurred and also dikes along the river were broken causing excessive flow to many communities beside the river and downstream. The consequence was a total of 815 deaths with 13.6 million people affected and over 20,000 …

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Using Of The Flood Reservoir Capacity For The Improvement Of River Ecology., Victoriia Belchikhina Aug 2014

Using Of The Flood Reservoir Capacity For The Improvement Of River Ecology., Victoriia Belchikhina

International Conference on Hydroinformatics

Today the flood capacities of the Moscow water reservoir system are determined depending on catastrophic spring floods. The rain flood volumes and the consequent maximum discharges are much less of spring flood volumes and the consequent maximum discharges. Main hypothesis of the research is possibility of safe use of flood capacity and drafts from water reservoir after the end of spring flood recession. Accordingly the aim of the research is safe use of flood capacity part for the water storage during summer after spring floods. The aim has required of solving of next problems: - to model the spring and …

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Eastern Nile Basin Water System Simulation Using Hec-Ressim Model, Azeb Belachew, Zelalem Mekonen Aug 2014

Eastern Nile Basin Water System Simulation Using Hec-Ressim Model, Azeb Belachew, Zelalem Mekonen

International Conference on Hydroinformatics

Eastern Nile Basin water resource related issues are complex which include water allocation, water simulation, reservoir operation and more. Addressing issues requires specialized tools for this reason the Eastern Nile Technical Regional Office developed a set of models under the Eastern Nile Planning Model project. A public domain model is used for this study to simulate the water system of the basin using Hec-ResSim Model. Four separate Hec-ResSim models has been developed for Abbay –Blue Nile –Main Nile, Tekeze-Setit-Atbara, Baro-Akobo-Sobat Sub basins and integrating these into unified model for the whole Eastern Nile Basin. Each of the four models are …

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Modeling Of Flood Routing Through Stepped Spillway Of Water Reservoir Dam, Feng Nan, Igor Rumyantsev Aug 2014

Modeling Of Flood Routing Through Stepped Spillway Of Water Reservoir Dam, Feng Nan, Igor Rumyantsev

International Conference on Hydroinformatics

The research is dedicated to modeling of flood routing through Da Chao Shan Hydropower water reservoir, which is located in Yunnan province on Lancang River (upper flow of Mekong River). The water reservoir is operating in conditions of torrential rain floods, which can not be forecasted in good time. Therefore it is necessary to consider the flood routing through dam with condition of storage water reservoir corresponding to Normal reservoir level before catastrophic flood. The main aim of the work is development of model which allows consider the different scenarios of drafts from water reservoir and flooding the territory. The …

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