Download or read book The Evaluation of Emergency Response Trace Gas and Dense Gas Dispersion Models written by M. H. Dickerson and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dense Gas Dispersion written by R. E. Britter and published by Elsevier Science & Technology. This book was released on 1982 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Download or read book LLNL Atmospheric Dispersion Model Developments in Support of Emergency Response written by L. L. Edwards and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are concurrently pursuing several different improvements to our emergency response models. Dense gas effects, including the slumping and horizontal spreading of the dense cloud, the turbulence suppression and the diversion of the ambient flow by the dense cloud, are being incorporated into our dispersion model. We are also coupling model predictions with observations by using regression analysis techniques in order to derive more accurate values of poorly known model input parameters such as source term characteristics. Additionally, we are developing a predictive mesoscale model to provide forecast wind and temperature fields to the dispersion models.
Download or read book Evaluation of Six Heavy Gas Dispersion Models Under Various Environmental Conditions written by Jie Luo and published by . This book was released on 1992 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book ABC demokratischer Kommunalpolitik written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Process for Evaluation and State Approval of an Emergency Response Atmospheric Dispersion Model for Rocky Flats Colorado written by and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document contains copies of the vugraphs used by C.R. Hodgin for the November 6, 1991 presentation summarizing the process to be used for evaluation of the Emergency Response Dispersion Model. (MHB).
Download or read book Dense Gas Dispersion Modeling for Aqueous Releases written by Armando Lara and published by . This book was released on 1999 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Models and Their Role in Emergency Response written by G. D. Greenly and published by . This book was released on 1983 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy Gas Dispersion Test Summary Report written by Donald L. Ermak and published by . This book was released on 1989 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results from selected field-scale, heavy gas dispersion test, which can be used to validate atmospheric dispersion models. A total of 26 benchmark tests were chosen from the Lawrence Livermore National Laboratory Burro (LNG), Coyote (LNG), Desert Tortoise (ammonia), and Eagle (nitrogen tetroxide) tests; the Shell Research Ltd. Maplin Sands tests (LNG and LPG); and the British Health and Safety Executive Thorney Island test (freon-air mixtures). Only continuous finite duration releases were selected for the test summaries as they were considered to better represent typical accidental releases from a storage vessel or transportation vehicle. The test summaries describe the manner of release, the ambient meteorological conditions, and the resulting vapor cloud characteristics including peak concentration, average centerline concentration, and average height and width of the cloud, all as functions of downwind distance. Keywords: Model validation; Model evaluation; Diffusion model; Hazard response model; Air pollution. Heavy gases.
Download or read book A Process for Evaluation and State Approval of an Emergency Response Atmospheric Dispersion Model for Rocky Flats Colorado written by C. Reed Hodgin and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Dispersion Modeling and Meteorological Monitoring in Support of Emergency Planning and Response for the US Army s Chemical Stockpile Disposal Program written by and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical memorandum examines the role of atmospheric dispersion modeling and meteorological monitoring in support of emergency planning and response for the US Army's Chemical Stockpile Disposal Program (CSDP). Air dispersion modeling and meteorological monitoring are expected to form key components in integrated accident assessment and warning systems at each of the eight CSDP installations. This report assesses the capabilities of operating state-of-the-art systems in order to establish a baseline for developing the requirements of the CSDP systems. A general tutorial on the types of atmospheric dispersion models currently available is provided, and the criteria for selection of emergency response models are developed. The requirements for meteorological monitoring are also described. In addition, the basic limitations of modeling and monitoring are discussed, and the importance of model verification is emphasized. Staffing requirements to operate an integrated modeling and monitoring system are characterized. The current state of modeling, monitoring, and staffing levels in support of emergency response at the eight US Army chemical stockpile depots involved in the CSDP is examined. Specific requirements appropriate to emergency planning and response at each of the eight sites are described. Recommendations are made for both the integrated system and the individual components of air dispersion modeling and meteorological monitoring. Finally, future work required to prepare for emergency response is discussed. 22 refs., 4 figs., 3 tabs.
Download or read book Evaluation of the Atmospheric Release Advisory Capability Emergency Response Model for Explosive Sources written by and published by . This book was released on 1993 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atmospheric Release Advisory Capability (ARAC) at the Lawrence Livermore National Laboratory (LLNL) uses a modeling system to calculate the impact of accidental radiological or toxic releases to the atmosphere anywhere in the world. Operated for the US Departments of Energy and Defense, ARAC has responded to over 60 incidents in the past 18 years, and conducts over 100 exercises each year. Explosions are one of the most common mechanisms by which toxic particulates are injected into the atmosphere during accidents. Automated algorithms with default assumptions have been developed to estimate the source geometry and the amount of toxic material aerosolized. The paper examines the sensitivity of ARAC's dispersion model to the range of input values for explosive sources, and analyzes the model's accuracy using two field measurement programs.
Download or read book Stably Stratified Flow and Dense Gas Dispersion written by J. S. Puttock and published by Oxford University Press, USA. This book was released on 1988 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Download or read book Assessment of the Validity of Current Dense Gas Dispersion Models at Low Wind Speeds written by I. G. Lines and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation Study of Building resolved Urban Dispersion Models written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For effective emergency response and recovery planning, it is critically important that building-resolved urban dispersion models be evaluated using field data. Several full-physics computational fluid dynamics (CFD) models and semi-empirical building-resolved (SEB) models are being advanced and applied to simulating flow and dispersion in urban areas. To obtain an estimate of the current state-of-readiness of these classes of models, the Department of Homeland Security (DHS) funded a study to compare five CFD models and one SEB model with tracer data from the extensive Midtown Manhattan field study (MID05) conducted during August 2005 as part of the DHS Urban Dispersion Program (UDP; Allwine and Flaherty 2007). Six days of tracer and meteorological experiments were conducted over an approximately 2-km-by-2-km area in Midtown Manhattan just south of Central Park in New York City. A subset of these data was used for model evaluations. The study was conducted such that an evaluation team, independent of the six modeling teams, provided all the input data (e.g., building data, meteorological data and tracer release rates) and run conditions for each of four experimental periods simulated. Tracer concentration data for two of the four experimental periods were provided to the modeling teams for their own evaluation of their respective models to ensure proper setup and operation. Tracer data were not provided for the second two experimental periods to provide for an independent evaluation of the models. The tracer concentrations resulting from the model simulations were provided to the evaluation team in a standard format for consistency in inter-comparing model results. An overview of the model evaluation approach will be given followed by a discussion on the qualitative comparison of the respective models with the field data. Future model developments efforts needed to address modeling gaps identified from this study will also be discussed.
Download or read book Dense Gas Dispersion written by R. E. Britter and published by . This book was released on 1982 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt:
