Performance Evaluation Of Smos Soil Moisture Retrieval Parameters For Hydrological Application, 2014 City University of New York (CUNY)
Performance Evaluation Of Smos Soil Moisture Retrieval Parameters For Hydrological Application, Prashant K. Srivastava, Dawei Han, Miguel A. Rico-Ramirez, Peggy O'Neil, Tanvir Islam, Manika Gupta
International Conference on Hydroinformatics
Microwave remote sensing has high potential for soil moisture retrieval. However, the efficient retrieval of soil moisture depends on optimally choosing the soil moisture retrieval parameters. In this study first the initial evaluation of SMOS L2 product is performed and then four approaches regarding soil moisture retrieval from SMOS brightness temperature are reported. The radiative transfer equation based tau-omega rationale is used in this study for the soil moisture retrievals. The single channel algorithms (SCA) using H polarisation is implemented with modifications, which includes the effective temperatures simulated from ECMWF (downscaled using WRF-NOAH Land Surface Model (LSM)) and MODIS. The …
Modeling Of River Flow For The Reservoir Routing, 2014 City University of New York (CUNY)
Modeling Of River Flow For The Reservoir Routing, Nader Jandaghi
International Conference on Hydroinformatics
Modeling of flow was made for Central Iran conditions on the example of river Hablerud where water reservoir is planning. Forms of dangerous flood hydrographs are very different because of different precipitation regimes. Practically it is impossible obtain typical design hydrograph for the reservoir routing. The storm precipitations and consequent floods can take place during any within-year interval, when water storage can be different with different probability. Therefore there is necessity to research a big amount of scenarios respecting possible combinations of flood hydrographs and water reservoir storages before floods for estimation of probability of damage. Observed hydrographs (30 years) …
Soft Sensing The Potential Amount Of Calcium Carbonate Precipitate In Drinking Water Distribution Infrastructure And Warm Water Household Appliances, 2014 City University of New York (CUNY)
Soft Sensing The Potential Amount Of Calcium Carbonate Precipitate In Drinking Water Distribution Infrastructure And Warm Water Household Appliances, Dirk Vries, Joost Van Summeren, Benjamin Van Den Akker, Alex Van Der Helm, Ignaz Worm, Peter Van Thienen
International Conference on Hydroinformatics
A soft sensor is developed to predict the potential amount of precipitation of calcium carbonate (CCPP) in warm water household devices and scaling or corrosive behavior in water distribution networks. With the aid of a water supply network model, it is shown that the soft sensor is able to predict CCPP levels at pre-specified downstream nodes using only measurements at a limited set of upstream nodes. Furthermore, the soft sensor consists of a data assimilation algorithm to provide for best estimates of the CCPP and confidence intervals.
Optimizing Operating Rules Of Multiple Source Water Supply Systems In Terms Of System Reliability And Resulting Operating Costs: Survey Of Simulation-Optimization Modeling Approaches Based On General Purpose Tools, 2014 City University of New York (CUNY)
Optimizing Operating Rules Of Multiple Source Water Supply Systems In Terms Of System Reliability And Resulting Operating Costs: Survey Of Simulation-Optimization Modeling Approaches Based On General Purpose Tools, Jordi Meseguer, Gabriela Cembrano, Josep M. Mirats, Eduard Bonada
International Conference on Hydroinformatics
Management of a water supply system from the point of view of the conjunctive use of water sources is a very complex problem whose solution is not just obtained using analytical models but also through a negotiation process among stakeholders and in which Public Bodies have a main role. For these reasons, this problem has been addressed using conservative approaches based on simulation models or simulation – linear optimization models parameterized using few parameters. These approaches have certain strengths but also certain drawbacks or constraints. In general these conservative approaches are already covered by existing generalized modelling tools (i.e. Aquator, …
Flow Control By Water Reservoir In Conditions Of Torrential Floods, 2014 City University of New York (CUNY)
Flow Control By Water Reservoir In Conditions Of Torrential Floods, Vitaly Ilinich
International Conference on Hydroinformatics
Majority of water reservoirs are located in conditions of torrential floods. Difficulty of flow control by such water reservoirs consists in next: different requirements can take place in same within-year intervals during different years. Irrigation requests the big water storage in reservoir, but during the same time a low water level of the reservoir is more preferred for safe drafts during possible catastrophic flood. Accordingly, main aim of the research is search of profitable and safe rules of flow control by water reservoir. The aim has required of solving of next problems: 1) to choose a duration of within-year interval …
The Application Of A Dynamic Openmi Coupling Between A Regional Climate Model And A Distributed Surface Water-Groundwater Model, 2014 City University of New York (CUNY)
The Application Of A Dynamic Openmi Coupling Between A Regional Climate Model And A Distributed Surface Water-Groundwater Model, Michael Brian Butts, Martin Drews, Morten Andreas Dahl Larsen, Sara Lerer, Søren Højmark Rasmussen, Jesper Grooss, Jesper Overgaard, Jens Christian Refsgaard
International Conference on Hydroinformatics
The understanding of interactions between the atmosphere, the land surface and the subsurface hydrology plays a key role in ensuring sustainable development of water resources and terrestrial ecosystems. The evaluation of climate adaptation measures requires the ability to reliably simulate the impact of different anthropogenic effects such as changes in land use, interventions such as reservoirs for flood control and irrigation, conjunctive use of surface water and groundwater under projections of future climatic conditions and variability. The interaction between climate and groundwater are often neglected in climate models and climate assessment and few studies have investigated how groundwater systems will …
Ensuring Reliable Measurements In Remote Aquatic Sensor Networks, 2014 City University of New York (CUNY)
Ensuring Reliable Measurements In Remote Aquatic Sensor Networks, Goncalo Joao Vitorino Jesus, Anabela Oliveira, Antonio Casimiro
International Conference on Hydroinformatics
A flood monitoring system comprises an extensive network of water sensors, a bundle of forecast simulations models, and a decision-support information system. A cascade of uncertainties present in each part of the system affects a reliable flood alert and response. The timeliness and quality of data gathering, used subsequently in forecasting models, is affected by the pervasive nature of the monitoring network where aquatic sensors are vulnerable to external disturbances affecting the accuracy of data acquisition. Existing solutions for aquatic monitoring are composed by heterogeneous sensors usually unable to ensure reliable measurements in complex scenarios, due to specific effects of …
Integrated Urban Water Resources Modeling In A Semi-Arid Mountainous Region Using A Cyber-Infrastructure Framework, 2014 City University of New York (CUNY)
Integrated Urban Water Resources Modeling In A Semi-Arid Mountainous Region Using A Cyber-Infrastructure Framework, Erfan Goharian, Steven J. Burian
International Conference on Hydroinformatics
Water resources management in cities is facing growing challenges related to increases in water demand, uncertain future climate variability, and conflicts related to water rights and access. Integrated water resource management (IWRM) is an inter-disciplinary framework which connects separated infrastructures and elements of a water resource system together which have dynamic interconnection. An IWRM process broadly involves water supply systems, stormwater management, wastewater collection, climate variables, groundwater and other water related sectors to solve the water and environmental problems. In this study, an integrated framework applying the GoldSim Monte-Carlo simulation software is presented to provide dynamic simulation of inter-related parts …
Short Term Reservoirs Operation On The Seine River: Performance Analysis Of Tree-Based Model Predictive Control, 2014 City University of New York (CUNY)
Short Term Reservoirs Operation On The Seine River: Performance Analysis Of Tree-Based Model Predictive Control, Andrea Ficchi, Luciano Raso, Pierre-Olivier Malaterre, David Dorchies, Maxime Jay-Allemand, Francesca Pianosi, Peter-Jules Van Overloop, Guillaume Thirel
International Conference on Hydroinformatics
The Seine River, in France, flows through territories of large economic value, among which the metropolitan area of Paris. A system of four reservoirs operates upstream to regulate the river flows in order to protect the area against extreme events, such as floods and droughts. Current reservoirs management is based on reactive filling curves, designed from an analysis of historical hydrological regimes. The efficiency of this management strategy is jeopardized when inflows are significantly different from their seasonal average. To improve the current management strategy, we investigated the use of Tree-Based Model Predictive Control (TB-MPC). TB-MPC is a proactive and …
Model-Based Sectorization Of Water Distribution Networks For Increased Energy Efficiency, 2014 City University of New York (CUNY)
Model-Based Sectorization Of Water Distribution Networks For Increased Energy Efficiency, Mario E. Castro Gama, Pan Quan, Andreja Jonoski, Carlo Chiesa
International Conference on Hydroinformatics
Efficient management of water supply systems is nowadays one of the most important challenges for water utilities. Common efficiency gains in such systems can be achieved by reducing the leakages and by reducing the energy consumption. For the case of minimization of energy consumption a new technique for sectorization and efficient pressure management is presented, based on water distribution modeling and optimization. The technique is applicable to situations when energy consumption reduction can be achieved by dividing a large Pressure Management Zone (PMZ) in smaller, but more efficient PMZs, or sectors. It consists of three steps: 1) An initial selection …
Stochastic And Deterministic Parameter Estimation Of Coupled Bacteria-Sediment Fate And Transport In Streams, 2014 City University of New York (CUNY)
Stochastic And Deterministic Parameter Estimation Of Coupled Bacteria-Sediment Fate And Transport In Streams, Tri Le, Arash Massoudieh
International Conference on Hydroinformatics
E. Coli is widely used as an indicator organism to assess the risk of pathogenic bacteria in water bodies. Due to their strong association with suspended and bed sediments, the fate and transport of micro-organisms in water bodies is strongly controlled by sediment dynamics. It has been shown that bed sediments can contain orders of magnitude larger pathogen concentration than the water column and these sediment-associated bacteria can be released into the water column as a result of high flow velocities that cause sediment resuspension. In this presentation parameter estimation of a mechanistic model of bacteria-sediment interaction using a deterministic …
Remote Sensing Data Assimilation In Water Quality Numerical Model Of Eagle Creek Reservoir Using Ensemble Kalman Filter Method, 2014 City University of New York (CUNY)
Remote Sensing Data Assimilation In Water Quality Numerical Model Of Eagle Creek Reservoir Using Ensemble Kalman Filter Method, Amir Javaheri, Meghna Babbar-Sebens
International Conference on Hydroinformatics
Numerical models are used as effective tools for simulating complex processes in aquatic systems, such as hydrodynamic and water quality processes. The accuracy of the model is reliant on the multiple model parameters and variables which need to be calibrated and regularly updated to reproduce changing conditions accurately. Different sources of observations such as remote sensing data or in-situ monitoring technologies can improve the model accuracy by providing benefits of individual monitoring technology within the model updating process. Remote sensing technology can provide the spatially dense surface temperature of water body, while in-situ technology is able to prepare more frequent …
Adaptive, Decentralized, And Real-Time Sampling Strategies For Resource Constrained Hydraulic And Hydrologic Sensor Networks, 2014 City University of New York (CUNY)
Adaptive, Decentralized, And Real-Time Sampling Strategies For Resource Constrained Hydraulic And Hydrologic Sensor Networks, Brandon Preclaro Wong, Branko Kerkez
International Conference on Hydroinformatics
We discuss the development and performance of a low-power sensor node (hardware, software and algorithms) that autonomously controls the sampling interval of a suite of sensors based on local state estimates and future predictions of water flow. The problem is motivated by the need to accurately reconstruct abrupt state changes in urban watersheds and stormwater systems. Presently, the detection of these events is limited by the temporal resolution of sensor data. It is often infeasible, however, to increase measurement frequency due to energy and sampling constraints. This is particularly true for real-time water quality measurements, where sampling frequency is limited …
Flood Resilience Assessment In Urban Drainage Systems Through Multi-Objective Optimisation, 2014 City University of New York (CUNY)
Flood Resilience Assessment In Urban Drainage Systems Through Multi-Objective Optimisation, Carlos Martínez-Cano, Beheshtah Toloh, Arlex Sanchez-Torres, Zoran Vojinović, Damir Brdjanovic
International Conference on Hydroinformatics
In future years, economic development, urbanisation and heavy rainfall events are expected to increase in urban areas, in particular in developing countries. It is well known that urban development has a strong impact on the water cycle such as increase of flood peaks and volume, decrease of base flow, hydraulic stress and water pollution. Resilience measures are still needed to improve urban flood risk, the possibilities to provide indicators that could be used to characterize urban resilience related to flooding is outmost importance. The work described here presents an optimisation framework for urban drainage rehabilitation that incorporates in the decision …
An Open Visualization Tool (Openvt) For Mesh Based Water Models, 2014 City University of New York (CUNY)
An Open Visualization Tool (Openvt) For Mesh Based Water Models, Quan Pan, Mario E. Castro Gama, Ioana Popescu
International Conference on Hydroinformatics
Worldwide there has been a lot of developments of numerical models for water related problems, using mesh based approaches. The models are usually released with their own data formats and visualization tools. Computer power has developed greatly in the last 10-15 years resulting in capabilities of better representing physical processes, hence the size of output results becomes larger and larger. Taking this into account present paper presents the development of an open visualization tool (openVT) for mesh based water models, which has functions for loading and visualizing results from a suite of modeling systems, regardless of their data structures. The …
Prediction And Dissemination Of Bathing Water Quality In England And Wales – A Pilot Study, 2014 City University of New York (CUNY)
Prediction And Dissemination Of Bathing Water Quality In England And Wales – A Pilot Study, Juzer F. Dhondia, Deborah Tyrrell, Daniel Twigt, Ian Dunhill
International Conference on Hydroinformatics
Water quality at some bathing waters can be adversely affected by heavy rainfall resulting in water running off the land, picking up faecal contaminants from the catchment and discharging this to bathing waters. The Environment Agency of England and Wales analyzed the relationship between water quality and rainfall at each bathing site. This relationship between rainfall and water quality depends on the intensity and duration of the rainfall and considering each bathing sites individual characteristics such as tidal flows, wind, run-off from surrounding catchment. This paper describes a Pilot study for setting up an operational bathing water quality prediction system …
Hydroterre Strahler Network Service For Any Level 12 Huc Catchment In The Usa., 2014 City University of New York (CUNY)
Hydroterre Strahler Network Service For Any Level 12 Huc Catchment In The Usa., Lorne Leonard, Chris Duffy
International Conference on Hydroinformatics
My talk will discuss two related topics to HydroTerre (http://www.hydroterre.psu.edu), a prototype infrastructure that provides researchers, educators, and resource managers with seamless access to geospatial/geotemporal data for supporting physics-based numerical models. The first topic describes the prototype, defining the supporting Essential Terrestrial Variables (ETV’s) and the infrastructure to support models and data anywhere in the continental USA (CONUS). I will address how we are overcoming important problems of accessibility to high-resolution geospatial data sets from multiple sources, scalability of geospatial data in support of distributed models and data-intensive computation for multi-scale, multi-state simulations. The second topic will describe a derived …
Integration Of Trmm Rainfall In Numerical Model For Pesticide Prediction In Subtropical Climate, 2014 City University of New York (CUNY)
Integration Of Trmm Rainfall In Numerical Model For Pesticide Prediction In Subtropical Climate, Manika Gupta, N.K. Garg, Prashant K. Srivastava, Tanvir Islam
International Conference on Hydroinformatics
Rain gauge data in developing countries are usually very limited, which constrains most of the hydrological modelling applications. The satellite based rainfall estimates could be a promising choice and hence can be used as a surrogate to ground-based rainfall. However, the usefulness of these products needs to be evaluated for hydrological application such as for pesticide predictions. The present study compares the contaminant transport simulation with the utilization of Tropical Rainfall Measuring Mission (TRMM) rainfall compared with rain gauge data from the field site. Through this study, transport trends of the pesticide, Thiram, a dithiocarbamate, at different time and depth …
Using Multi-Scale Uncertainty Information And Specific Forecast Skill To Improve Reservoir Operations, 2014 City University of New York (CUNY)
Using Multi-Scale Uncertainty Information And Specific Forecast Skill To Improve Reservoir Operations, Thomas S. Lowry, Nathalie Voisin, Mark S. Wigmosta
International Conference on Hydroinformatics
Optimization of reservoir operations to time series of forecasted inflows are constrained by a set of multiple objectives that span many time scales, however the temporally evolving skill of the forecasts are usually not considered in the objective functions. For example, a flow forecast time series extending from 1 day to 6 months consists of a medium range flow forecast that draws its skill from initial conditions and weather forecasts and a seasonal flow forecast that relies on the initial conditions only. The skill of the medium range flow forecast is the daily and aggregated values with a range of …
Study On Water Age In An Estuary Using Three-Dimensional Models, 2014 City University of New York (CUNY)
Study On Water Age In An Estuary Using Three-Dimensional Models, Yuheng Ren, Binliang Lin, Jian Sun
International Conference on Hydroinformatics
The age of water (AW) concept is applied in the Pearl River Estuary to investigate the water exchange process in three-dimensional space and its seasonal variation. A three-dimensional AW model is built based on the advanced hydrodynamic model MIKE3, and the model has been verified against a field survey dataset in the Pearl River Estuary. Using this model, the spatio-temporal distributions of water age are numerically determined in response to hydrodynamic factors. The predictions indicate that the mean AW values inside the Pearl River Estuary during the wet season and the dry season are approximately 10 days and 25 days, …