Predicting Storm Surges Chaos Computational Intelligence Data Assimilation and Ensembles

Author: Michael Siek
Publisher: CRC Press
ISBN: 041562102X
Format: PDF, Kindle
Download Now
Accurate predictions of storm surge are of importance in many coastal areas in the world to avoid and mitigate its destructive impacts. For this purpose the physically-based (process) numerical models are typically utilized. However, in data-rich cases, one may use data-driven methods aiming at reconstructing the internal patterns of the modelled processes and relationships between the observed descriptive variables. This book focuses on data-driven modelling using methods of nonlinear dynamics and chaos theory. First, some fundamentals of physical oceanography, nonlinear dynamics and chaos, computational intelligence and European operational storm surge models are covered. After that a number of improvements in building chaotic models are presented: nonlinear time series analysis, multi-step prediction, phase space dimensionality reduction, techniques dealing with incomplete time series, phase error correction, finding true neighbours, optimization of chaotic model, data assimilation and multi-model ensemble prediction. The major case study is surge prediction in the North Sea, with some tests on a Caribbean Sea case. The modelling results showed that the enhanced predictive chaotic models can serve as an efficient tool for accurate and reliable short and mid-term predictions of storm surges in order to support decision-makers for flood prediction and ship navigation.

Improving Flood Prediction Assimilating Uncertain Crowdsourced Data into Hydrologic and Hydraulic Models

Author: Maurizio Mazzoleni
Publisher: CRC Press
ISBN: 1351652567
Format: PDF, ePub, Mobi
Download Now
In recent years, the continued technological advances have led to the spread of low-cost sensors and devices supporting crowdsourcing as a way to obtain observations of hydrological variables in a more distributed way than the classic static physical sensors. The main advantage of using these type of sensors is that they can be used not only by technicians but also by regular citizens. However, due to their relatively low reliability and varying accuracy in time and space, crowdsourced observations have not been widely integrated in hydrological and/or hydraulic models for flood forecasting applications. Instead, they have generally been used to validate model results against observations, in post-event analyses. This research aims to investigate the benefits of assimilating the crowdsourced observations, coming from a distributed network of heterogeneous physical and social (static and dynamic) sensors, within hydrological and hydraulic models, in order to improve flood forecasting. The results of this study demonstrate that crowdsourced observations can significantly improve flood prediction if properly integrated in hydrological and hydraulic models. This study provides technological support to citizen observatories of water, in which citizens not only can play an active role in information capturing, evaluation and communication, leading to improved model forecasts and better flood management.

Multi Objective Optimization for Urban Drainage Rehabilitation

Author: Wilmer Jose Barreto Cordero
Publisher: CRC Press
ISBN: 9780415624787
Format: PDF
Download Now
Flooding in urbanized areas has become a very important issue around the world. The level of service (or performance) of urban drainage systems (UDS) degrades in time for a number of reasons. In order to maintain an acceptable performance of UDS, early rehabilitation plans must be developed and implemented. In developing countries the situation is serious, little investment is done and there are smaller funds each year for rehabilitation. The allocation of such funds must be "optimal" in providing value for money. However this task is not easy to achieve due to the multicriteria nature of the rehabilitation process, taking into account technical, environmental and social interests. Most of the time these are conflicting, which make it a highly demanding task. This book introduces a framework to deal with multicriteria decision making for the rehabilitation of urban drainage systems, and focuses on several aspects such as the improvement of the performance of the multicriteria optimization through the inclusion of new features in the algorithms and the proper selection of performance criteria. The use of Genetic Algorithms, parallelization and application in countries like Brazil, Colombia and Venezuela are treated in this book.

Nonlinear Dynamics and Chaos with Applications to Hydrodynamics and Hydrological Modelling

Author: Slavco Velickov
Publisher: CRC Press
ISBN: 9058096912
Format: PDF, Docs
Download Now
A hydroinformatics system represents an electronic knowledge encapsulator that models part of the real world and can be used for the simulation and analysis of physical, chemical and biological processes in water systems, in order to achieve a better management of the aquatic environment. Thus, modelling is at the heart of hydroinformatics. The theory of nonlinear dynamics and chaos, and the extent to which recent improvements in the understanding of inherently nonlinear natural processes present challenges to the use of mathematical models in the analysis of water and environmental systems, are elaborated in this work. In particular, it demonstrates that the deterministic chaos present in many nonlinear systems can impose fundamental limitations on our ability to predict behaviour, even when well-defined mathematical models exist. On the other hand, methodologies and tools from the theory of nonlinear dynamics and chaos can provide means for a better accuracy of short-term predictions as demonstrated through the practical applications in this work.

Climate Change and Water Resources

Author: Sangam Shrestha
Publisher: CRC Press
ISBN: 1466594675
Format: PDF
Download Now
Covering the various aspects of water and climate change, Climate Change and Water Resources presents the principles of climate change science and its effects on earth’s water supply. Utilizing the knowledge and expertise from well-known experts in the field, the text provides a broad outline of the many interrelated aspects of climate variations, climate change, and connections to water resources. Designed to help managers with developing strategies, implementing policies, and investing in infrastructure and information sources for integrated water resources management, the text addresses many issues regarding climate change and water resources. It also includes adaptation options, which are essential to water resource sustainability. The material is divided into four sections. The first part of the book provides an introduction to climate change and considers theoretical aspects and available tools. The second part of the book examines the impacts that climate change has on the water sector. The third part focuses on the different adaptation measures needed to minimize the effects of climate change. The fourth part presents a number of case studies. Focused on climate change in the water sector, Climate Change and Water Resources closely analyzes scientific research and fuels study for a greater understanding of climate change and the proper management of water. This text is useful for undergraduate and postgraduate students, scientists, and design engineers as well as those working at research institutes and implementing and planning agencies.

Practical Hydroinformatics

Author: Robert J. Abrahart
Publisher: Springer Science & Business Media
ISBN: 3540798811
Format: PDF, ePub, Mobi
Download Now
Hydroinformatics is an emerging subject that is expected to gather speed, momentum and critical mass throughout the forthcoming decades of the 21st century. This book provides a broad account of numerous advances in that field - a rapidly developing discipline covering the application of information and communication technologies, modelling and computational intelligence in aquatic environments. A systematic survey, classified according to the methods used (neural networks, fuzzy logic and evolutionary optimization, in particular) is offered, together with illustrated practical applications for solving various water-related issues. ...

Anticipatory Water Management Using Ensemble Weather Forecasts for Critical Events

Author: Schalk-Jan Andel
Publisher: CRC Press
ISBN: 9781138474680
Format: PDF, ePub, Mobi
Download Now
Day-to-day water management is challenged by meteorological extremes, causing floods and droughts. Often operational water managers are informed too late about these upcoming events to be able to respond and mitigate their effects, such as by taking flood control measures or even requiring evacuation of local inhabitants. Therefore, the use of weather forecast information with hydrological models can be invaluable for the operational water manager to expand the forecast horizon and to have time to take appropriate action. This is called Anticipatory Water Management. Anticipatory actions may have adverse effects, such as when flood control actions turn out to have been unnecessary, because the actual rainfall was less than predicted. Therefore the uncertainty of the forecasts and the associated risks of applying Anticipatory Water Management have to be assessed. To facilitate this assessment, meteorological institutes are providing ensemble predictions to estimate the dynamic uncertainty of weather forecasts. This dissertation presents ways of improving the end-use of ensemble predictions in Anticipatory Water Management.

Knowing Bodies Moving Minds

Author: Liora Bresler
Publisher: Springer Science & Business Media
ISBN: 1402020236
Format: PDF, Kindle
Download Now
This book aims to define new theoretical, practical, and methodological directions in educational research centered on the role of the body in teaching and learning. Based on our phenomenological experience of the world, it draws on perspectives from arts-education and aesthetics, as well as curriculum theory, cultural anthropology and ethnomusicology. These are arenas with a rich untapped cache of experience and inquiry that can be applied to the notions of schooling, teaching and learning. The book provides examples of state-of-the-art, empirical research on the body in a variety of educational settings. Diverse art forms, curricular settings, educational levels, and cultural traditions are selected to demonstrate the complexity and richness of embodied knowledge as they are manifested through institutional structures, disciplines, and specific practices.

Data Science and Big Data Computing

Author: Zaigham Mahmood
Publisher: Springer
ISBN: 3319318616
Format: PDF, Docs
Download Now
This illuminating text/reference surveys the state of the art in data science, and provides practical guidance on big data analytics. Expert perspectives are provided by authoritative researchers and practitioners from around the world, discussing research developments and emerging trends, presenting case studies on helpful frameworks and innovative methodologies, and suggesting best practices for efficient and effective data analytics. Features: reviews a framework for fast data applications, a technique for complex event processing, and agglomerative approaches for the partitioning of networks; introduces a unified approach to data modeling and management, and a distributed computing perspective on interfacing physical and cyber worlds; presents techniques for machine learning for big data, and identifying duplicate records in data repositories; examines enabling technologies and tools for data mining; proposes frameworks for data extraction, and adaptive decision making and social media analysis.

Advances in Hydroinformatics

Author: Philippe Gourbesville
Publisher: Springer
ISBN: 9811072183
Format: PDF, Kindle
Download Now
This book gathers a collection of extended papers based on presentations given during the SimHydro 2017 conference, held in Sophia Antipolis, Nice, France on June 14–16, 2017. It focuses on how to choose the right model in applied hydraulics and considers various aspects, including the modeling and simulation of fast hydraulic transients, 3D modeling, uncertainties and multiphase flows. The book explores both limitations and performance of current models and presents the latest developments in new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It gathers the lastest theoretical and innovative developments in the modeling field and presents some of the most advance applications on various water related topics like uncertainties, flood simulation and complex hydraulic applications. Given its breadth of coverage, it addresses the needs and interests of practitioners, stakeholders, researchers and engineers alike.