Interoperability Between Grdc's Data Holding And The Geoss Infrastructure,
2014
City University of New York (CUNY)
Interoperability Between Grdc's Data Holding And The Geoss Infrastructure, Volker Andres, Henning Bredel, Ralf Busskamp, Simon Jirka, Ulrich Looser, Manuela Schlummer, Adrian Strauch, Michael Utech
International Conference on Hydroinformatics
The Global Runoff Data Centre (GRDC) operates under the auspices of the World Meteorological Organization as an international data centre for hydrological data and information on a global scale. Its primary objective is to support the water and climate related programmes and projects of the United Nations, its specialised agencies, and the scientific research community on global and climate change and integrated water resources management. The Global Runoff Database maintained by the GRDC is a valuable data resource and a subset of its data is contributed to the Global Earth Observation System of Systems’ (GEOSS) freely accessible Data Core. As …
A Model To Structure Scientific Information For Decision Makers,
2014
City University of New York (CUNY)
A Model To Structure Scientific Information For Decision Makers, Rebecca Kristine Schmidt, Damian Barrett, Simon Gallant
International Conference on Hydroinformatics
Scientific information for decision makers needs to be discoverable and transparent so that decisions are more easily based on scientific evidence. One way to achieve these goals is to specify a robust model that structures this scientific information. This paper presents a model that governs the scientific activities, inputs and products for bioregional assessments (BAs), which provide information on the ecology, hydrology, geology and hydrogeology of a bioregion with explicit assessment of the potential direct, indirect and cumulative impacts of coal seam gas and coal mining development on water resources. This scientific information will be available for all interested parties …
Meteomap: Generation Of Meteorological Variables For Distributed Physically-Based Hydrological Modeling,
2014
City University of New York (CUNY)
Meteomap: Generation Of Meteorological Variables For Distributed Physically-Based Hydrological Modeling, Cristina Aguilar, Javier Herrero, Agustín Millares, Miguel A. Losada, María José Polo
International Conference on Hydroinformatics
Distributed energy and water balance models require time-series surfaces of the meteorological variables involved in hydrological processes. Most of the hydrological GIS-based models apply simple interpolation techniques to extrapolate the point scale values registered at weather stations at a watershed scale. In mountainous areas, where the monitoring network ineffectively covers the complex terrain heterogeneity, simple geostatistical methods for spatial interpolation are not always representative enough, and algorithms that explicitly or implicitly account for the features creating strong local gradients in the meteorological variables must be applied. Originally developed as a meteorological pre-processing tool for a complete hydrological model (WiMMed), MeteoMap …
Hydrological Ensemble Forecasting And Data Assimilation With An Integrated Hydrological Modelling System,
2014
City University of New York (CUNY)
Hydrological Ensemble Forecasting And Data Assimilation With An Integrated Hydrological Modelling System, Henrik Madsen, Diana Lucatero, Marc Ridler, Donghua Zhang, Jens Christian Refsgaard, Karsten Høgh Jensen
International Conference on Hydroinformatics
Hydrological forecasting is an important instrument for more effective water management, such as warning and protection against water-related hazards, real-time operation of water infrastructure, improved water allocation, and environmental monitoring. Recent advances within radar rainfall estimation and nowcasting, ensemble-based numerical weather prediction (NWP), in-situ and satellite monitoring, and hydrological data assimilation are opening up new opportunities in real-time hydrological forecasting. NWP ensemble products can be used as input to hydrological forecast models to produce probabilistic forecasts and estimation of forecast uncertainty of the hydrological variables of interest. In this regard, key scientific challenges are understanding, quantification, and propagation of the …
Floodalert: A Simplified Radar-Based Ews For Urban Flood Warning,
2014
City University of New York (CUNY)
Floodalert: A Simplified Radar-Based Ews For Urban Flood Warning, Xavier Llort, Rafael Sánchez-Diezma, Alvaro Rodríguez, David Sancho, Marc Berenguer, Daniel Sempere-Torres
International Conference on Hydroinformatics
Urban floods can be caused by intense rainfall accumulations in short time periods that eventually exceed the capacity of the sewer networks. Despite the efforts made in the last years in all cities to increase the sewer’s capacity many cities are still exposed to these heavy rainfall events. In this work, we present a simplified flood Early Warning System, called FloodAlert, based on the use of radar observations to issue local flood warnings. Although precipitation accumulation estimates based on radar observations may suffer from different sources of error, they may also be the quickest way to obtain a reliable estimate …
Hidromet: A Cloud-Based Ews Platform For Real Time Urban Flood Warning,
2014
City University of New York (CUNY)
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), …
Data-Driven Surrogate Models For Flood Defence Failure Estimation : “Jarillon” Of Cali, Colombia Case Study,
2014
City University of New York (CUNY)
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 …
Volunteered Geographic Information For Water Management: A Prototype Architecture,
2014
City University of New York (CUNY)
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 …
Hydrodynamic And Water Quality Surrogate Modeling For Reservoir Operation,
2014
City University of New York (CUNY)
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 …
Evaluating North Sea Water Level Monitoring Network Considering Uncertain Information Theory Quantities,
2014
City University of New York (CUNY)
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 …
Model Predictive Control Of Water Levels In A Navigation Canal Affected By Resonance Waves,
2014
City University of New York (CUNY)
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, …
Offset Free Model Predictive Control Of An Open Water Reach,
2014
City University of New York (CUNY)
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 …
Hydrauric Analysis On Water Stage Change Along The Submerged Weir And Tides Effect In Han River,
2014
City University of New York (CUNY)
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 …
Water Resources Policy Development Using Hydrologic And Systems Dynamics Modeling – A Case Study For East Africa,
2014
City University of New York (CUNY)
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 …
Exploring Behavioral Economics Concepts In Flood Forecast Decision-Making Under Uncertainty,
2014
City University of New York (CUNY)
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 …
The Research And Application Of Remote Sensing Monitoring Method Of Actual Irrigated Area,
2014
City University of New York (CUNY)
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 …
Developing A Hydrologic Information System: Towards Promoting Sustainable Standardization,
2014
City University of New York (CUNY)
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 …
Development Of Water Meter For Secure Communication In The Advanced Metering Infrastructure,
2014
City University of New York (CUNY)
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 …
A Resource Centric Approach For Advancing Collaboration Through Hydrologic Data And Model Sharing,
2014
City University of New York (CUNY)
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 …
Coupling Spatial And Time Scales In The Hydrological Modelling Of Mediterranean Regions: Wimmed,
2014
City University of New York (CUNY)
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 …
