A Comparison Between Heuristic, Statistical, And Data-Driven Methods In Landslide Susceptibility Assessment: An Application To The Briga And Giampilieri Catchments,
2014
City University of New York (CUNY)
A Comparison Between Heuristic, Statistical, And Data-Driven Methods In Landslide Susceptibility Assessment: An Application To The Briga And Giampilieri Catchments, Antonio Francipane, Elisa Arnone, Francesco Lo Conti, Claudio Puglisi, Leonardo Valerio Noto
International Conference on Hydroinformatics
Susceptibility assessment concerning the estimation of areas prone to landslide is one of the most useful approach in the analysis of landslide hazard. Over the last years, in an attempt to find the best approach to evaluate landslide susceptibility, many methods have been developed. Among these, the heuristic, the statistical, and the data-driven approaches are very widespread, and they all are based on the concept that the conditions which led to landslide movements in the past will control the probability of movement occurrence in the future. The main disadvantage of the heuristic approach is its high level of subjectivity, since …
Wdnetxl: Efficient Research Transfer For Management, Planning And Design Of Water Distribution Networks,
2014
City University of New York (CUNY)
Wdnetxl: Efficient Research Transfer For Management, Planning And Design Of Water Distribution Networks, Daniele Laucelli, Luigi Berardi, Orazio Giustolisi
International Conference on Hydroinformatics
The WDNetXL system (www.hydroinformatics.it) is aimed at promoting transfer of research achievements in water distribution network (WDN) analysis, planning and management to practitioners, students and researchers. In order to facilitate the technology transfer, the WDNetXL functions are integrated into the worldwide known MS-Excel data-management environment. Advanced hydraulic modeling and topological analyses of WDN are combined with efficient optimization strategies to make readily available the latest, even customized, decision support tools for planning and management of WDNs. All these features make WDNetXL of practical support for technicians as well as a privileged platform to test innovations coming from research in WDN …
Variational Data Assimilation With Telemac. Proof Of Concept For Model State Correction On The Berre Lagoon 3d-Model,
2014
City University of New York (CUNY)
Variational Data Assimilation With Telemac. Proof Of Concept For Model State Correction On The Berre Lagoon 3d-Model, Sophie Ricci, Andrea Piacentini, Anthony Weaver, Riadh Ata, Nicole Goutal
International Conference on Hydroinformatics
TELEMAC is a component of the open-source integrated suite of solvers TELEMAC-MASCARET for use in the field of free-surface flow that solves the Reynolds Averaged Navier-Stokes equations. Generally speaking, uncertainties in the model formulation itself due to simplified physics and also in the input fields to the model such as the boundary conditions, initial conditions and hydraulic parameters translate into errors in the simulated hydraulic variables. In spite of significant advances in numerical schemes, description of geographical data (topography, bathymetry) and environmental conditions (hydrologycal and meteorological fields), the representation of the true state of a system as well as its …
A Hybrid Optimization Method For Real-Time Pump-Scheduling,
2014
City University of New York (CUNY)
A Hybrid Optimization Method For Real-Time Pump-Scheduling, Valeria Puleo, Mark Morley, Gabriele Freni, Dragan A. Savić
International Conference on Hydroinformatics
Linear, non-linear and dynamic programming, heuristics and evolutionary computation are amongst the techniques which have been applied to obtain solutions to optimal pump-scheduling problems. Most of these either greatly simplify the complex water distribution system or require significant time to solve the problem. The scheduling of pumps is frequently undertaken in near-real time, in order to minimize cost and maximize energy savings. However, this requires a computationally efficient algorithm that can rapidly identify an acceptable solution. In this paper, a hybrid optimization model is presented, coupling Linear Programming and Genetic Algorithms. The resulting hybrid optimization model has demonstrated more rapid …
Combining Satellite And Gauge Precipitation Data With Co-Kriging Method For Jakarta Region,
2014
City University of New York (CUNY)
Combining Satellite And Gauge Precipitation Data With Co-Kriging Method For Jakarta Region, Chi Dung Doan, Jiandong Liu, Shie-Yui Liong, Dong Eon Kim, Richard Sanders, Timothy Fewtrell
International Conference on Hydroinformatics
Jakarta is vulnerable to flooding mainly caused by prolonged and heavy rainfall and thus a robust hydrological modeling is called for. A good quality of spatial precipitation data is therefore desired so that a good hydrological model could be achieved. Two types of rainfall sources are available: satellite and gauge station observations. At-site rainfall is considered to be a reliable and accurate source of rainfall. However, the limited number of stations makes the spatial interpolation not very much appealing. On the other hand, the gridded rainfall nowadays has high spatial resolution and improved accuracy, but still, relatively less accurate than …
Improving Sediment Transport Modelling By A Combination Of Field Data And Sensitivity Analysis,
2014
City University of New York (CUNY)
Improving Sediment Transport Modelling By A Combination Of Field Data And Sensitivity Analysis, Tom Vanwalleghem, Juan Pablo Garcia, Juan Vicente Giráldez
International Conference on Hydroinformatics
Traditionally, the relationship between flow rate and sediment concentration in rivers has been estimated empirically. However, the problem of empirical data collection is that it is often difficult to cover the entire range of flow rates. Especially higher flow rates are often undersampled, which might lead to an underestimation of modelled sediment transport as flood events are often associated with important erosion events. In order to overcome this limitation, the introduction of the transport capacity concept can establish a safe upper bound of this sediment transport relationship. Nevertheless, given the number of implied variables in this equation, there is a …
Method Of Use And The Contribution Of Les 3d Modeling To Reproduce Velocity Distribution In Compound Channels,
2014
City University of New York (CUNY)
Method Of Use And The Contribution Of Les 3d Modeling To Reproduce Velocity Distribution In Compound Channels, Salma Bellahcen, José Vazquez, Matthieu Dufresne, Robert Mose, Gilles Isenmann
International Conference on Hydroinformatics
Discharge determination in open channels is of great interest for water engineering, especially in compound channels where the main difficulty is the link between the measured velocity and the mean velocity. To do so, the 3D modeling is used as a tool to get the velocity distribution in compound channels. The purpose of this study is to compare through numerical simulations, the most common turbulence models such as K-epsilon and RSM to LES that is rarely used in this field, in order to show the efficiency of the LES model to reproduce the velocity distribution. The method used is the …
A Serious Gaming Approach For Serious Stakeholder Participation,
2014
City University of New York (CUNY)
A Serious Gaming Approach For Serious Stakeholder Participation, Chengzi Chew, Anna Zabel, Gareth James Lloyd, Indika Gunawardana, Bertram Monninkhoff
International Conference on Hydroinformatics
Serious games are a category of games which are designed for a specific purpose other than for pure entertainment. It is not a new concept but serious games using real data, coupled with real time modelling and combining model results with social and economic factors opens up a new paradigm for active stakeholder participation. DHI and UNEP-DHI Centre initiated a project called Aqua Republica where a virtual world is developed which allows participants to develop a river basin and visualise the consequences of their decisions. The aim of this project is to raise awareness of the interconnectivity of water and …
Optimal Rehabilitation Strategy In Water Distribution Systems Considering Reduction In Greenhouse Gas Emissions,
2014
City University of New York (CUNY)
Optimal Rehabilitation Strategy In Water Distribution Systems Considering Reduction In Greenhouse Gas Emissions, Farshid Rahmani, Abdollah Ardeshir, Kourosh Behzadian, Fatemeh Jalilsani
International Conference on Hydroinformatics
Most of water distribution systems (WDS) need rehabilitation due to aging infrastructure leading to decreasing capacity, increasing leakage and consequently low performance of the WDS. However an appropriate strategy including location and time of pipeline rehabilitation in a WDS with respect to a limited budget is the main challenge which has been addressed frequently by researchers and practitioners. On the other hand, selection of appropriate rehabilitation technique and material types is another main issue which has yet to address properly. The latter can affect the environmental impacts of a rehabilitation strategy meeting the challenges of global warming mitigation and consequent …
Uncertainty Propagation In A Hydro-Meteorological Approach: From The Cloud To The Flood Map.,
2014
City University of New York (CUNY)
Uncertainty Propagation In A Hydro-Meteorological Approach: From The Cloud To The Flood Map., Juan Pablo Rodríguez-Rincón, José Agustín Breña-Naranjo, Adrián Pedrozo-Acuña
International Conference on Hydroinformatics
Globally, it is widely known that floods remain the most frequent and devastating natural hazards. Likewise, there is recent evidence showing an increase in the number of extreme flood events observed around the world. Therefore, it is imperative to develop an integrated flood assessment framework that enables a better understanding of both, the generation of these events and the interaction of key variables within the hydro-meteorological system. The aim of this investigation is to study the propagation of meteorological uncertainty to a numerically estimated flood map. For such purpose, we utilise a cascade modelling approach comprised by a Numerical Weather …
Remote Sensing Of Total Water Storage Variability During Extreme Heat Waves,
2014
City University of New York (CUNY)
Remote Sensing Of Total Water Storage Variability During Extreme Heat Waves, José Agustín Breña-Naranjo, Adrián Pedrozo-Acuña
International Conference on Hydroinformatics
Droughts and heat waves are a major hazard for food & water security, economic development, and human & ecosystem health, among others. Over the last decade, short-term but exceptional heat waves have been observed across different regions of the world, with several locations experiencing all-time maximum temperature records. While many studies have suggested that the extreme intensity of such recent events can be attributed to a changing climate, little attention has been given to the impacts on the terrestrial water balance. This work analyzes the sensitivity of total water storage to extreme heat waves since 2003 in Europe (2003), Russia, …
Analysis On Runoff Characteristics Of Decentralized Rainwater Management System Using Xp-Swmm Simulation,
2014
City University of New York (CUNY)
Analysis On Runoff Characteristics Of Decentralized Rainwater Management System Using Xp-Swmm Simulation, Yun Jung Kim, Dong Geun Kwak, Won Tae Kim, Hai Uk Nam, Jeong Joo Kim, Hee Chul Yoon, Hyun Bae Kim, Ho Sun Lee
International Conference on Hydroinformatics
In recent years, impervious areas are increasing in residential zone as well as unsettled area with rapid urbanization and land use. Consequently, this phenomenon influences weak urban environmental compositions about climate change including urban flooding accidents. Therefore, a new paradigm on rainwater management is needed for sound and sustainable restoration of hydrological circulation. Recently, a novel rainwater management system has been developed and recommended for irrigation and flood control in Korea. Especially, P city is now planning a new rainwater management system adopting LID (Low Impact Development) techniques on a small scale development area. In this study, XP-SWMM was used …
Parameter Calibration Method Based On Ga Technique For Multi-Event,
2014
City University of New York (CUNY)
Parameter Calibration Method Based On Ga Technique For Multi-Event, Yeonjoo Kim, Eun-Sung Chung, Kwangjai Won, Byungho Kong, Kyungil Gil
International Conference on Hydroinformatics
Accurate parameter estimation based catchment modeling systems requires considerable work to establish credibility. In this paper, a methodology for parameter estimation of hydrologic simulation model is proposed to simultaneously include several rainfall events using Shannon entropy. The proposed methodology uses Genetic Algorithm(GA) optimization techniques for the Storm Water Management Model (SWMM). Shannon entropy theory was applied to calculate weights according to each rainfall event in study area. A case study application was undertaken using the Milyang-dam basin, in Korea. Three events are applied to calculate Shannon entropy weights. Then, Nash-Sutcliffe Efficiency(NSE) & Root Mean Square Error(RMSE) are compared with those …
Moving Horizon Estimation To Assimilate Snow And Soil Moisture Data Into The Hbv Hydrological Model,
2014
City University of New York (CUNY)
Moving Horizon Estimation To Assimilate Snow And Soil Moisture Data Into The Hbv Hydrological Model, Rodolfo Alvarado Montero, Dirk Schwanenberg, Peter Krahe, Aynur Şensoy
International Conference on Hydroinformatics
We present a variational data assimilation approach based on a Moving Horizon Estimation (MHE) applied to the HBV hydrological model. This framework enables the modification of the model inputs precipitation and temperature as well as the model states soil moisture, upper zone storage and lower zone storage. It considers data products for snow cover, snow water equivalent and soil moisture and observed streamflow. The performance of the framework is evaluated for three test sites: i) the data–dense catchment of the upper Main River (2419 km2), Germany, for which the HBV model already produces excellent results, ii) a comparable upstream catchment …
Short-Term Management Of Hydropower: Definition, Assessment And Disposal Of Operational Flexibility,
2014
City University of New York (CUNY)
Short-Term Management Of Hydropower: Definition, Assessment And Disposal Of Operational Flexibility, Divas Karimanzira, Dirk Schwanenberg, Chris Allen
International Conference on Hydroinformatics
Modern hydroelectric power systems are largely characterized by variability and uncertainty in water resource obligations. The growing number of operational obligations for flood control, navigation, environmental obligations and ancillary services (including load balancing requirements for renewable resources) further the need to quantify sources uncertainty. The variations caused by these - factors require the hydropower system to have enough up and downward flexibility for control technologies such as dynamic optimal control load-following, unit commitment, automatic generation, to be effective. Therefore, it is increasingly important to adopting operational flexibility to better manage uncertainty and balancing reserves. The objective of this paper is …
Impact Of El Niño Southern Oscillation On Monsoon Rainfall In Bhima Basin, Central India,
2014
City University of New York (CUNY)
Impact Of El Niño Southern Oscillation On Monsoon Rainfall In Bhima Basin, Central India, Dhyan Singh Arya, Mohamed Gareeballa Abdall, Asmita Ramkrishna Murumkar
International Conference on Hydroinformatics
The analysis of the effects of ENSO phenomenon on monsoon rainfall of the Bhima River basin located in Central India was investigated using 10x10 degree gridded monsoon rainfall during 1951-2003 and data of four ENSO indices (SOI, MEI, Niño 3.4 and DMI). Data of ENSO indices were divided into three seasons and only statistically significantly correlation was found between monsoon rainfall and monsoon season ENSO indices. Analysis also shows that the monsoon rainfall is positively correlated with SOI index whereas negatively correlated with all other indices. A significant change in the regional climate after 1976 has been reported in many …
Simulation Of Shoreline Changes Along Muthalapozhy Harbour, India,
2014
City University of New York (CUNY)
Simulation Of Shoreline Changes Along Muthalapozhy Harbour, India, Dhyan Singh Arya, Santosh Kori, A M. Vaidya
International Conference on Hydroinformatics
A study of Muthalapozhy fishing harbour, located in south India, was conducted for simulating shoreline changes using LITPACK modelling tool. The analysis shows that the estimated advancement in shoreline is of the order of 45 m/year initially, which gradually reduces to 25 m/year. It was also found that the coastline advances more during the south-west monsoon (i.e. June to September) season. Simulation of breakwaters shows that the length of the breakwater should be increased by 200 m for south breakwater and 70 m for north breakwater to keep the channel operational without dredging till 2016. The results of the simulated …
Examining Flow Paths In Bunter Sediments In Thuringian Basin,
2014
City University of New York (CUNY)
Examining Flow Paths In Bunter Sediments In Thuringian Basin, Thomas Fischer, Cindy Kunkel, Dmitri Naumov, Reinhard Gaupp, Olaf Kolditz
International Conference on Hydroinformatics
We would like to present a study on the Thuringian Basin, a large area in central Germany. Within this basin exist areas with very different interesting geo- and hydrological properties. We set up models and simulations for four subdomains within the basin, which describe different depositional environments - Eolian, Fluvial, Sandflat and Lacustrine. Researchers would like to investigate which paths is the water taking in the subsurface and how fast it is moving. The aim of this study is to gain knowledge about flow paths within these four model areas with regard to their architectural design. First simulation results suggest …
Practical-Oriented Pressure Sensor Placement For Model-Based Leakage Location In Water Distribution Networks,
2014
City University of New York (CUNY)
Practical-Oriented Pressure Sensor Placement For Model-Based Leakage Location In Water Distribution Networks, Eduard Bonada, Jordi Meseguer, Josep M. Mirats
International Conference on Hydroinformatics
In order to bring remarkable benefits to operation and management of water networks, the analysis of sensed data can be used to locate water leaks using of a model-based methodology. However, the number of sensors installed is usually limited because of budget constraints and hence a strategy for optimizing their number and placement is required. This optimization is tightly coupled to the performance of the real-time model-based leakage diagnosis operation and hence the former should consider the requirements of the latter: (1) high distinguishability among all potential leaks to be detected; and (2) strong robustness in front of model-reality mismatches …
Designed Overflow For Flood Recession Agriculture Against Flow Control For Hydroelectric Production In An African Context,
2014
City University of New York (CUNY)
Designed Overflow For Flood Recession Agriculture Against Flow Control For Hydroelectric Production In An African Context, Luciano Raso, Jean-Claude Bader, Marc Leblanc
International Conference on Hydroinformatics
Manantali is a reservoir located in Mali, along the Senegal River, controlling about 50% of the total water flow of this river. Manantali is an annual reservoir, used to regulate the flow in the face of the extremely variable seasonal climate of the region. Manantali is mainly managed for agricultural and hydropower purposes, and its benefits are shared among Mali, Mauritania, and Senegal, the countries that participate to the project. The reservoir has been operative for about 10 years now, exceeding the planned capacity of hydroelectric production and irrigable land surface. The economic benefits due to the reservoir come at …
