Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Methodologies For Evaluating Performance And Assessing Uncertainty Of Atmospheric Dispersion Models
Download Methodologies For Evaluating Performance And Assessing Uncertainty Of Atmospheric Dispersion Models full books in PDF, epub, and Kindle. Read online Methodologies For Evaluating Performance And Assessing Uncertainty Of Atmospheric Dispersion Models ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Methodologies for Evaluating Performance and Assessing Uncertainty of Atmospheric Dispersion Models by : Joseph C. Chang
Download or read book Methodologies for Evaluating Performance and Assessing Uncertainty of Atmospheric Dispersion Models written by Joseph C. Chang and published by . This book was released on 2002 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Standard Guide for Statistical Evaluation of Atmospheric Dispersion Model Performance by :
Download or read book Standard Guide for Statistical Evaluation of Atmospheric Dispersion Model Performance written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Standard Guide for Statistical Evaluation of Atmospheric Dispersion Model Performance by : ASTM Subcommittee D22.11 on Meteorology
Download or read book Standard Guide for Statistical Evaluation of Atmospheric Dispersion Model Performance written by ASTM Subcommittee D22.11 on Meteorology and published by . This book was released on 2000 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation and Development of Data Assimilation in Atmospheric Dispersion Models for Use in Nuclear Emergencies by : Dongqin Zheng
Download or read book Evaluation and Development of Data Assimilation in Atmospheric Dispersion Models for Use in Nuclear Emergencies written by Dongqin Zheng and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Evaluation and Development of Data Assimilation in Atmospheric Dispersion Models for Use in Nuclear Emergencies" by Dongqin, Zheng, 鄭冬琴, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled EVALUATION AND DEVELOPMENT OF DATA ASSIMILATION IN ATMOSPHERIC DISPERSION MODELS FOR USE IN NUCLEAR EMERGENCIES Submitted by Zheng Dongqin for the degree of Doctor of Philosophy at The University of Hong Kong in August 2007 When radioactive contaminants are released into the atmosphere during a nuclear accident, the consequence assessment that relies on atmospheric dispersion models plays an important role for the decision-makers in taking the correct response. In this thesis, a 3D Monte Carlo Dispersion Model (MCDM) was developed and evaluated. Data assimilation technique was in- corporated to give a real time consequence assessment in the unlikely event of a nuclear accident of the nuclear power plant (NPP) in the Daya Bay. The predictions of MCDM were compared with that of the Particle Dis- persion Model (PDM) developed by the Hong Kong Observatory. The dif- ferences in air concentrations and ground depositions predicted by the two models were found to be within one order of magnitude. MCDM predictions were also tested against the measurements of a eld dispersion of radioactivematerials from a research reactor in Mol, Belgium. Both the gamma uence rates and the plume geometry given by MCDM are comparable with the measurement results. Although the dispersion model can execute well given a known source term, meteorological data and dispersion parameters, uncertainties of these model parameters may inuence the reliability of model predictions. The ability of a model in assimilating measurement data is crucial to improve model predictions. In this thesis, a data assimilation method based on the Ensemble Kalman Filter (EnKF) and a stochastic nonlinear state space model was proposed. It presents a new method for online update of the model predictions and estimation of the model parameters, i.e. the release rate, wind direction, or turbulence intensity, by adding the measurement in- formation. The proposed method has been tested by twin experiments in which simulated ground level dose rates have been assimilated. The predic- tion errors caused false' estimations of model parameters could be reduced by more than 60%. The temporal variations of model parameters estimated by EnKF were found to follow the true' value very well. In order to test the data assimilation method with real experimental data, a wind tunnel dispersion experiment was carried out for the east and south-east wind directions over the area surrounding the Daya Bay NPP. The measurement data collected were assimilated in the dispersion model. Amethodwaspresentedbyusingrandomeldstoconstructtheerrorsin3D parameters, e.g. the wind direction and turbulence intensity. This method is very helpful in ensuring the performance of the EnKF. The data assimilation method was also tested against the Mol experi- mental data. The gamma uence rates overestimated by the MCDM were corrected by EnKF. The temporal variations of model parameters estimated by EnKF have been shown to provide useful information for tracking the major error sources. DOI: 10.5353/th_b3934603 Subjects: Radioactive fallout Particle size determination Monte Carlo method
Book Synopsis Uncertainty Analysis by : Rituparna Chutia
Download or read book Uncertainty Analysis written by Rituparna Chutia and published by LAP Lambert Academic Publishing. This book was released on 2014-02 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to the methodologies for the uncertainty analysis of atmospheric dispersion under uncertain environment. The uncertainty issues in atmospheric dispersion are generally addressed within a purely probabilistic framework. A framework may exist where the information of the parameters are epistemic in the sense of fuzzy or epistemic and aleatory combined together. There is a need for methodologies of sensitivity and uncertainty analysis of atmospheric dispersion in those frameworks. In order to address uncertainties such as fuzzy, probability and imprecise probability new methodologies are proposed and discussed through hypothetical case studies of atmospheric dispersion. Methodologies such as fuzzy-imprecise probability, hybrid stochastic response surface method and construction of probability bound through stochastic response surface methods have been developed and are discussed here.
Book Synopsis Good Practice Guide for Atmospheric Dispersion Modelling by : New Zealand. Ministry for the Environment
Download or read book Good Practice Guide for Atmospheric Dispersion Modelling written by New Zealand. Ministry for the Environment and published by . This book was released on 2004-01-01 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Dispersion Modelling by : Rod Barratt
Download or read book Atmospheric Dispersion Modelling written by Rod Barratt and published by Routledge. This book was released on 2013-11-05 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: To comply with legal and other standards, businesses and regulators are increasingly required to make decisions based on risk assessments of the potential effects of their activities on the environment. Atmospheric dispersion modelling is a cost-effective method, allowing various scenarios to be explored before expensive investment takes place. This guide offers advice on this environmental management tool. Unlike much of the previous literature, it doesn't focus excessively on the mathematical theory behind the modelling or on modelling for specific regulatory purposes. Instead, it offers an understanding of the background to the methodologies, providing exercises to develop the skills to carry these out and including examples of the use of commercially available models to enable the reader to assess the results of modelling for risk assessment.
Book Synopsis Integrated Regional Risk Assessment, Vol. II by : A.V. Gheorghe
Download or read book Integrated Regional Risk Assessment, Vol. II written by A.V. Gheorghe and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years there has been an increasing awareness of the risks of locating hazardous industries near heavily populated, environmentally sensitive areas. This new awareness demands a novel approach to safety planning for hazardous industries; one that looks at the problem from the point of view of integrated regional risk assessment which, besides the risks arising from natural events, should also include the risks arising from the processing plants, storage and the transportation of dangerous goods. Volume I of Integrated Regional Risk Assessment highlights the main procedures for the assessment of risks to health and environmental impacts from continuous emissions of pollutants into air, water and soil under normal operating conditions. Volume II deals with the assessment of consequences of accidental releases, helping to answer such questions as: What can go wrong? What are the effects and consequences? How often will it happen? £/LIST£ The main procedural steps are supported by relevant, internationally recognised methods of risk assessment. The book also reviews criteria and guidelines for the implementation of risk assessment and management at different stages. Audience: Students, engineers, and scientists in charge of developing new methodologies for hazard analysis and risk assessment; practitioners of environmental protection; local and governmental authorities charged with implementing environmental risk impact procedures and guidelines.
Book Synopsis Workbook of Atmospheric Dispersion Estimates by : D. Bruce Turner
Download or read book Workbook of Atmospheric Dispersion Estimates written by D. Bruce Turner and published by CRC Press. This book was released on 2020-12-17 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated and revised Second Edition of the popular Workbook of Atmospheric Dispersion Estimates provides an important foundation for understanding dispersion modeling as it is being practiced today. The book and accompanying diskette will help you determine the impacts of various sources of air pollution, including the effects of wind and turbulence, plume rise, and Gaussian dispersion and its limitations. Information is shown in summary graphs as well as in equations. The programs included on the diskette allow you to "get the feel" for the results you'll obtain through the input of various combinations of parameter values. The sensitivity of data to various parameters can be easily explored by changing one value and seeing the effect on the results. The book presents 37 example problems with solutions to show the estimation of atmospheric pollutant concentrations for many situations.
Book Synopsis Sensitivity and Uncertainty Analysis in Atmospheric Dispersion Models by : John Douglas McClure
Download or read book Sensitivity and Uncertainty Analysis in Atmospheric Dispersion Models written by John Douglas McClure and published by . This book was released on 2002 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Models in Environmental Regulatory Decision Making by : National Research Council
Download or read book Models in Environmental Regulatory Decision Making written by National Research Council and published by National Academies Press. This book was released on 2007-08-25 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many regulations issued by the U.S. Environmental Protection Agency (EPA) are based on the results of computer models. Models help EPA explain environmental phenomena in settings where direct observations are limited or unavailable, and anticipate the effects of agency policies on the environment, human health and the economy. Given the critical role played by models, the EPA asked the National Research Council to assess scientific issues related to the agency's selection and use of models in its decisions. The book recommends a series of guidelines and principles for improving agency models and decision-making processes. The centerpiece of the book's recommended vision is a life-cycle approach to model evaluation which includes peer review, corroboration of results, and other activities. This will enhance the agency's ability to respond to requirements from a 2001 law on information quality and improve policy development and implementation.
Book Synopsis Air Pollution Modeling by : P. Zannetti
Download or read book Air Pollution Modeling written by P. Zannetti and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finishing this book is giving me a mixture of relief, satisfaction and frus tration. Relief, for the completion of a project that has taken too many of my evenings and weekends and that, in the last several months, has become almost an obsession. Satisfaction, for the optimistic feeling that this book, in spite of its many shortcomings and imbalances, will be of some help to the air pollution scientific community. Frustration, for the impossibility of incorporating newly available material that would require another major review of several key chap ters - an effort that is currently beyond my energies but not beyond my desires. The first canovaccio of this book came out in 1980 when I was invited by Computational Mechanics in the United Kingdom to give my first Air Pollution Modeling course. The course material, in the form of transparencies, expanded, year after year, thus providing a growing working basis. In 1985, the ECC Joint Research Center in Ispra, Italy, asked me to prepare a critical survey of mathe matical models of atmospheric pollution, transport and deposition. This support gave me the opportunity to prepare a sort of "first draft" of the book, which I expanded in the following years.
Book Synopsis Air Pollution Modeling and its Application XV by : Carlos Borrego
Download or read book Air Pollution Modeling and its Application XV written by Carlos Borrego and published by Springer Science & Business Media. This book was released on 2002-10-31 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers and poster abstracts presented at the 25th NATO/CCMS International Technical Meeting on Air Pollution Modelling and Its Application held in Louvain-la-Neuve, Belgium, during 15-19 October 2001. This ITM was jointly organized by the University of Aveiro, Portugal (Pilot country) and by the Catholic University of Louvain, Belgium (host country). The main topics of this ITM were : Role of Atmospheric Models in Air Pollution Policy and Abatement Strategies; Integrated Regional Modelling; Global and Long-Range Transport; Regional Air Pollution and Climate; New Developments; and Model Assessment and Verification. Invited papers were presented by A. Ebel of Germany (Changing atmospheric environment, changing views); H. ApSimon of Great Britain (Applying risk assessment techniques to air pollution modelling & abatement strategies); and S.E. Gryning of Denmark (Aspects of meteorological pre-processing of fluxes over inhomogeneous terrain) - all of which are included in this comprehensive proceedings volume.
Book Synopsis Atmospheric Dispersion Modeling Compliance Guide by : Karl B. Schnelle
Download or read book Atmospheric Dispersion Modeling Compliance Guide written by Karl B. Schnelle and published by McGraw Hill Professional. This book was released on 2000 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM includes: Practice problems that reinforces and deepen understanding of modeling principles.
Book Synopsis Air Dispersion Modeling by : Alex De Visscher
Download or read book Air Dispersion Modeling written by Alex De Visscher and published by John Wiley & Sons. This book was released on 2013-09-26 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: A single reference to all aspects of contemporary air dispersion modeling The practice of air dispersion modeling has changed dramatically in recent years, in large part due to new EPA regulations. Current with the EPA's 40 CFR Part 51, this book serves as a complete reference to both the science and contemporary practice of air dispersion modeling. Throughout the book, author Alex De Visscher guides readers through complex calculations, equation by equation, helping them understand precisely how air dispersion models work, including such popular models as the EPA's AERMOD and CALPUFF. Air Dispersion Modeling begins with a primer that enables readers to quickly grasp basic principles by developing their own air dispersion model. Next, the book offers everything readers need to work with air dispersion models and accurately interpret their results, including: Full chapter dedicated to the meteorological basis of air dispersion Examples throughout the book illustrating how theory translates into practice Extensive discussions of Gaussian, Lagrangian, and Eulerian air dispersion modeling Detailed descriptions of the AERMOD and CALPUFF model formulations This book also includes access to a website with Microsoft Excel and MATLAB files that contain examples of air dispersion model calculations. Readers can work with these examples to perform their own calculations. With its comprehensive and up-to-date coverage, Air Dispersion Modeling is recommended for environmental engineers and meteorologists who need to perform and evaluate environmental impact assessments. The book's many examples and step-by-step instructions also make it ideal as a textbook for students in the fields of environmental engineering, meteorology, chemical engineering, and environmental sciences.
Book Synopsis Tracking and Predicting the Atmospheric Dispersion of Hazardous Material Releases by : National Research Council
Download or read book Tracking and Predicting the Atmospheric Dispersion of Hazardous Material Releases written by National Research Council and published by National Academies Press. This book was released on 2003-07-18 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years, communities have prepared themselves to deal with accidental atmospheric releases from industrial sites, energy facilities, and vehicles transporting hazardous materials. Today, these communities must also worry about the terrorist threat of the intentional use of chemical, biological, and nuclear (C/B/N) agents. Because of this threat, the ability to predict and track the dispersal of harmful agents has become a critical element of terrorism planning and response. Our nation�s capacity to respond to atmospheric C/B/N events stands, like a three legged stool, on the strength of three interconnected elements: 1) dispersion models that predict the path and spread of the hazardous agent; 2) observations of the hazardous plume itself and of local meteorological conditions, which provide critical input for the models; and 3) interaction with emergency responders who use the information provided by the models. As part of the National Academies continuing focus on issues of homeland security, Tracking and Predicting the Atmospheric Dispersion of Hazardous Material Releases examines our nation�s current capabilities in these three areas and provides recommendations for strengthening them.
