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The Impact Of An Oil Spill In Turbulent Waters
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Book Synopsis The Impact of an Oil Spill in Turbulent Waters by : John Murray Davies
Download or read book The Impact of an Oil Spill in Turbulent Waters written by John Murray Davies and published by Stationery Office Books (TSO). This book was released on 1997 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: On 5 January 1993 the Braer oil tanker ran aground on Garths Ness in South Shetland in some of the worst weather conditions ever recorded there. Over a period of up to 12 days the entire cargo, 84,700 tons of light Gulfaks crude oil, was discharged at an unknown rate into the turbulent sea. It has been estimated that up to 1500 tons of heavy bunker oil was also lost.
Book Synopsis Oil in the Sea III by : National Research Council
Download or read book Oil in the Sea III written by National Research Council and published by National Academies Press. This book was released on 2003-03-14 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.
Book Synopsis Responding to Oil Spills in the U.S. Arctic Marine Environment by : National Research Council
Download or read book Responding to Oil Spills in the U.S. Arctic Marine Environment written by National Research Council and published by National Academies Press. This book was released on 2014-08-01 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. Arctic waters north of the Bering Strait and west of the Canadian border encompass a vast area that is usually ice covered for much of the year, but is increasingly experiencing longer periods and larger areas of open water due to climate change. Sparsely inhabited with a wide variety of ecosystems found nowhere else, this region is vulnerable to damage from human activities. As oil and gas, shipping, and tourism activities increase, the possibilities of an oil spill also increase. How can we best prepare to respond to such an event in this challenging environment? Responding to Oil Spills in the U.S. Arctic Marine Environment reviews the current state of the science regarding oil spill response and environmental assessment in the Arctic region north of the Bering Strait, with emphasis on the potential impacts in U.S. waters. This report describes the unique ecosystems and environment of the Arctic and makes recommendations to provide an effective response effort in these challenging conditions. According to Responding to Oil Spills in the U.S. Arctic Marine Environment, a full range of proven oil spill response technologies is needed in order to minimize the impacts on people and sensitive ecosystems. This report identifies key oil spill research priorities, critical data and monitoring needs, mitigation strategies, and important operational and logistical issues. The Arctic acts as an integrating, regulating, and mediating component of the physical, atmospheric and cryospheric systems that govern life on Earth. Not only does the Arctic serve as regulator of many of the Earth's large-scale systems and processes, but it is also an area where choices made have substantial impact on life and choices everywhere on planet Earth. This report's recommendations will assist environmentalists, industry, state and local policymakers, and anyone interested in the future of this special region to preserve and protect it from damaging oil spills.
Book Synopsis Petroleum Spills in the Marine Environment by : James R. Payne
Download or read book Petroleum Spills in the Marine Environment written by James R. Payne and published by CRC Press. This book was released on 2018-05-04 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers research completed between 1981 and May 1985 and includes: reviews of recent studies, sitings and investigations at spills-of-opportunity as well as results of recent arctic and sub-Arctic oil weathering experiments and observations on the behavior of crude oil in the presence of ice. Topics covered include the following: laboratory studies of formation and stability of water-in-oil emulsions; selected case histories of the more detailed chemistry studies of mousse behavior and long term fate in near-coastal and open ocean oil spills/blowouts; tar ball formation and distribution; and algorithms and computer programs to simulate the formation of water-in-oil emulsion.
Book Synopsis Understanding Oil Spills and Oil Spill Response by :
Download or read book Understanding Oil Spills and Oil Spill Response written by and published by . This book was released on 1993 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Oil Spills on Seafood Safety by :
Download or read book The Effect of Oil Spills on Seafood Safety written by and published by Nordic Council of Ministers. This book was released on 2004 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication examines the effect of oil spills at sea on seafood safety and sets out a model for a stepwise risk analysis procedure for risk monitoring and management of contamination (focusing on polycyclic aromatic hydrocarbons or PAH components in the oil and on seafood safety) from an imaginary oil spill at a location in the sea between Denmark, Norway and Sweden. The report also summarises recommendations for national and international emergency response and surveillance systems and for the future research needs in this topic.
Author :Committee on Understanding Oil Spill Dispersants: Efficacy and Effects Publisher : ISBN 13 : Total Pages :408 pages Book Rating :4.3/5 (91 download)
Book Synopsis Oil Spill Dispersants by : Committee on Understanding Oil Spill Dispersants: Efficacy and Effects
Download or read book Oil Spill Dispersants written by Committee on Understanding Oil Spill Dispersants: Efficacy and Effects and published by . This book was released on 2005 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 3 million gallons of oil or refined petroleum products are spilled into U.S. waters every year. Oil dispersants (chemical agents such as surfactants, solvents, and other compounds) are used to reduce the effect of oil spills by changing the chemical and physical properties of the oil. By enhancing the amount of oil that physically mixes into the water, dispersants can reduce the potential that a surface slick will contaminate shoreline habitats. Although called for in the Oil Pollution Act of 1990 as a tool for minimizing the impact of oil spills, the use of chemical dispersants has long been controversial. This book reviews the adequacy of existing information and ongoing research regarding the effectiveness of dispersants as an oil spill response technique, as well as the effect of dispersed oil on marine and coastal ecosystems. Oil Spill Dispersants also includes recommended steps for policy makers faced with making hard choices regarding the use of dispersants as part of spill contingency planning efforts or during actual spills.
Book Synopsis Oil Spill Science and Technology by : Mervin Fingas
Download or read book Oil Spill Science and Technology written by Mervin Fingas and published by Gulf Professional Publishing. This book was released on 2010-12-03 with total page 1189 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Academy of Sciences estimate that 1.7 to 8.8 million tons of oil are released into world's water every year, of which more than 70% is directly related to human activities. The effects of these spills are all too apparent: dead wildlife, oil covered marshlands and contaminated water chief among them. This reference will provide scientists, engineers and practitioners with the latest methods use for identify and eliminating spills before they occur and develop the best available techniques, equipment and materials for dealing with oil spills in every environment. Topics covered include: spill dynamics and behaviour, spill treating agents, and cleanup techniques such as: in situ burning, mechanical containment or recovery, chemical and biological methods and physical methods are used to clean up shorelines. Also included are the fate and effects of oil spills and means to assess damage. Covers spill dynamics and behaviour Definitive guide to spill treating agents Complete coverage of cleanup techniques Includes fate and effects of oil spills and means to assess damage
Book Synopsis The Characteristics and Modelling of Oil Dispersion in the Ocean Mixed Layer from Underwater Blowout Spill Accidents by : Bicheng Chen
Download or read book The Characteristics and Modelling of Oil Dispersion in the Ocean Mixed Layer from Underwater Blowout Spill Accidents written by Bicheng Chen and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater oil spill accidents are the most challenging oil spills in the ocean and the ensuing oil transport is impacted by a wide range of physical, chemical and biological processes through the entire ocean column. In particular, the final fate of oil plume is strongly affected by the various scales of motions present in the ocean mixed layer (OML) (i.e. Ekman transport, submesoscale/mesoscale eddies, small-scale turbulence).Due to the large extension of oil plumes, the numerical prediction of oil trasnport is most often investigated by regional models, which requires turbulence models for the OML. In these models of OML, turbulence and mixing have been developed based on knowledge of atmospheric boundary layer (ABL) turbulence, because of the similarity between these two boundary layers and the lack of observation and understanding about the OML.Recent studies have found that the unique wave-induced phenomena (i.e. Stokes drift, Langmuir circulatons) in OML are critical for both horizontal advection and vertical mixing in the OML, but important issues related to oil transport remain unsolved. In this work, we focus on i) the modulation of turbulence field by surface gravity waves in the OML and responses of oil plumes to this modulation using the high fidelity large eddy simulation (LES); ii) a new multi-scale numerical approach to inlcude both accurate representations of small-scale turbulence and large-scale eddies; and iii) impacts of dispersant application on oil plume from an underwater blowout and the corresponding implication for remediation.The surface gravity wave induces two phenomena--the Stokes drift and the Langmuir circulation, which are important for transport processes in the OML. Both phenomena are modulated by the misalignment angle between wind and wave. In the first work, we focus on the effects of swell waves on the modulation of turbulent flow in the OML and its impact on oil transport. Results show that when the wind-swell misalignment is small, Langmuir cells develop and significantly enhance the vertical mixing of the oil plume. Conversely, when the misalignment is large, vertical dilution is suppressed when compared to the no-swell case. Due to the strong directional shear of the mean flow within the OML, plume depth significantly impacts the mean transport direction. The size of oil droplets in the plume also plays an important role in vertical mixing and mean transport direction. Oil plumes being transported in the OML experience the action of shear-generated turbulence, Langmuir circulations, Ekman transport and submesoscale/mesoscale eddies. To resolve such turbulent processes, grid sizes of a few meters are desirable while horizontal domain sizes of LES are typically restricted from hundreds of meters to a few kilometers, for LES to remain practically affordable. Yet transported oil plumes evolve to large scales extending to tens or even hundreds of kilometers. In this work, the Extended Nonperiodic Domain LES for Scalar transport (ENDLESS) is proposed as a multi-scale approach to tackle this challenge while being computationally affordable. The basic idea is to simulate the shear turbulence and Langmuir circulations on a small horizontal domain with periodic boundary conditions while the resulting transport velocity field is replicated periodically following adaptively the large-scale plume as it evolves spatially towards much larger scales. This approach also permits the superposition of larger-scale quasi two-dimensional flow motions on the oil advection, allowing for coupling with regional circulation models.A validation case and two sample applications to oil plume evolution in the OML are presented in order to demonstrate key features and computational speedup associated with the ENDLESS method. The results shows that the ENDLESS method is a promising multi-scale approach.The application of oil dispersants in oil spill accidents is controversial due to the unclear effects on oil transport in a real environment and their toxicity to oceanic organisms. Because of the velocity shear in Ekman layer, the oil experiences different advection velocity in different depth, therefore, the vertical transport also impact the horizontal transport of oil. In this study, the oil transport of an idealized underwater blow-up accident is simulated by LES, which is able to resolve the high fidelity vertical mixing. The oil spill accident is simulated by two parts: i) the near-field simulation which includes the water column where the oil plume rises from the source; ii) the far-field simulation which the oil plume disperses mainly horizontally in the ocean mixed layer (OML) using the ENDLESS approach. The result from LES shows that after applying dispersants, the advection velocity of oil plume reduces to about 1/8 of its original value and the lateral diffusion is significantly enhanced.
Book Synopsis Deep Oil Spills by : Steven A. Murawski
Download or read book Deep Oil Spills written by Steven A. Murawski and published by Springer. This book was released on 2019-06-29 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for oil and gas has brought exploration and production to unprecedented depths of the world’s oceans. Currently, over 50% of the oil from the Gulf of Mexico now comes from waters in excess of 1,500 meters (one mile) deep, where no oil was produced just 20 years ago. The Deepwater Horizon oil spill blowout did much to change the perception of oil spills as coming just from tanker accidents, train derailments, and pipeline ruptures. In fact, beginning with the Ixtoc 1 spill off Campeche, Mexico in 1979-1980, there have been a series of large spill events originating at the sea bottom and creating a myriad of new environmental and well control challenges. This volume explores the physics, chemistry, sub-surface oil deposition and environmental impacts of deep oil spills. Key lessons learned from the responses to previous deep spills, as well as unresolved scientific questions for additional research are highlighted, all of which are appropriate for governmental regulators, politicians, industry decision-makers, first responders, researchers and students wanting an incisive overview of issues surrounding deep-water oil and gas production.
Book Synopsis A Theoretical Appraisal of the Joint Effects of Turbulence and of Langmuir Circulations on the Dispersion of Oil Spilled in the Sea by : S. Leibovich
Download or read book A Theoretical Appraisal of the Joint Effects of Turbulence and of Langmuir Circulations on the Dispersion of Oil Spilled in the Sea written by S. Leibovich and published by . This book was released on 1981 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extent to which oil spilled at sea can be dispersed by the action of oceanic turbulence and of Langmuir circulations is investigated theoretically. The bulk of the study concerns the mixing of oil, in the form of small noninteracting particles, into the water column. Computer simulations using physically derived models of turbulent dispersion and of Langmuir circulations indicate that bouyant oil particles can be suspended to depths of tens of meters under moderate environmental conditions. This is thought to explain the deep oil observed under oil slicks from the IXTOC-I incident in the Gulf of Mexico. In addition, a simple model is devised to estimate the thickness and total volume of oil collected into windrows on the water surface. (Author).
Book Synopsis Using Oil Spill Dispersants on the Sea by : National Research Council
Download or read book Using Oil Spill Dispersants on the Sea written by National Research Council and published by National Academies Press. This book was released on 1989-01-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: While major oil spills are rare, oil slicks can have disastrous environmental and economic consequences. This book summarizes research on the use of chemical dispersants: their effectiveness and limitations and the results of using them in different spill situations. Based on laboratory and field research as well as on actual case histories, this book contains a clear-cut set of recommendations for action, planning, and research. Of special interest is the chapter on the biological effects of oil itself and of oil treated with chemical dispersants.
Book Synopsis Encyclopedia of Coastal Science by : M. Schwartz
Download or read book Encyclopedia of Coastal Science written by M. Schwartz and published by Springer Science & Business Media. This book was released on 2006-11-08 with total page 1243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new Encyclopedia of Coastal Science stands as the latest authoritative source in the field of coastal studies, making it the standard reference work for specialists and the interested lay person. Unique in its interdisciplinary approach. This Encyclopedia features contributions by 245 well-known international specialists in their respective fields and is abundantly illustrated with line-drawings and photographs. Not only does this volume offer an extensive number of entries, it also includes various appendices, an illustrated glossary of coastal morphology and extensive bibliographic listings.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309478219 Total Pages :341 pages Book Rating :4.3/5 (94 download)
Book Synopsis The Use of Dispersants in Marine Oil Spill Response by : National Academies of Sciences, Engineering, and Medicine
Download or read book The Use of Dispersants in Marine Oil Spill Response written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-04-24 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether the result of an oil well blowout, vessel collision or grounding, leaking pipeline, or other incident at sea, each marine oil spill will present unique circumstances and challenges. The oil type and properties, location, time of year, duration of spill, water depth, environmental conditions, affected biomes, potential human community impact, and available resources may vary significantly. Also, each spill may be governed by policy guidelines, such as those set forth in the National Response Plan, Regional Response Plans, or Area Contingency Plans. To respond effectively to the specific conditions presented during an oil spill, spill responders have used a variety of response optionsâ€"including mechanical recovery of oil using skimmers and booms, in situ burning of oil, monitored natural attenuation of oil, and dispersion of oil by chemical dispersants. Because each response method has advantages and disadvantages, it is important to understand specific scenarios where a net benefit may be achieved by using a particular tool or combination of tools. This report builds on two previous National Research Council reports on dispersant use to provide a current understanding of the state of science and to inform future marine oil spill response operations. The response to the 2010 Deepwater Horizon spill included an unprecedented use of dispersants via both surface application and subsea injection. The magnitude of the spill stimulated interest and funding for research on oil spill response, and dispersant use in particular. This study assesses the effects and efficacy of dispersants as an oil spill response tool and evaluates trade-offs associated with dispersant use.
Book Synopsis Understanding our Environment by : R M Harrison
Download or read book Understanding our Environment written by R M Harrison and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2nd edition of Understanding Our Environment has been reworked and greatly updated, providing a modern introductory level text for students of pollution and environmental chemistry. The book describes the basic concepts in relation to the chemistry of the atmosphere, freshwaters, oceans and soils, as well as the ways in which pollutants behave in these media (exemplified by case studies based upon topical environmental problems). It also examines the transfer of pollutants between different environmental compartments, the monitoring of the environment, the ecological and human health effects of chemical pollution, economics and regulatory control. Again case studies are used throughout. This unique introductory text is essential reading for students on undergraduate and first year postgraduate courses dealing with pollution and environmental chemistry, as well as for scientists and engineers in industry, public service and consultancy who require a basic understanding of environmental processes.
Book Synopsis Large Marine Ecosystems of the North Atlantic by : K. Sherman
Download or read book Large Marine Ecosystems of the North Atlantic written by K. Sherman and published by Elsevier. This book was released on 2002-04-16 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide assessments of multidecadal changes in resources and environments of the Large Marine Ecosystems (LMEs) of the North Atlantic. Using the case study method, researchers examine the forces driving the changes and actions underway aimed at turning the corner from declining trends in biomass yields, toward recovery of depleted species populations and improvements in ecosystem integrity. Recently a distinguished group of 24 scientists argued eloquently that a new Sustainability Science was emerging that was focused on "meeting fundamental human needs while preserving the life support systems of planet Earth". The contributions contained in this volume are at the cutting edge of Sustainability Science and the results presented by the contributors are pertinent to one of the core questions: "How are long-term trends in environment and development, including consumption and population, reshaping nature-society interactions in ways relevant to sustainability?" (Science Vol. 292, 27 April 2001). The case studies demonstrate the utility of an ecosystem-based approach to the assessment and management of biomass yields and species sustainability. Movements toward ecosystem-based management have emerged from the case studies on the initiation of recoveries of several depleted groundfish stocks of the US Northeast Shelf LME; the collapse of the Newfoundland-Labrador Shelf cod; the assessment of physical and biological changes on the Scotian Shelf, West Greenland Shelf, Iceland Shelf LME, and the Faroe Plateau, the North Sea, and the Barents Sea LMEs. Uncertainties, with regard to environmental and human-generated forcing, are addressed in assessment of the states of the Iberian Coastal and Biscay-Celtic LMEs, and in broad-scale studies of the influences at the base of the food chain of climatic variability on the productivity and biodiversity of plankton communities of the North Atlantic. The volume concludes with an insightful perspective on the approaches used and the results reported by the eminent marine scientist and former President of ICES, Professor Gotthilf Hempel.
Book Synopsis The Proceedings of the Conference on Assessment of Ecological Impacts of Oil Spills by :
Download or read book The Proceedings of the Conference on Assessment of Ecological Impacts of Oil Spills written by and published by . This book was released on 1978 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
