Here we present the results of visible range light curve observations of ten Centaurs using the Kepler Space Telescope in the framework of the K2 mission. Well defined periodic light curves are ...obtained in six cases allowing us to derive rotational periods, a notable increase in the number of Centaurs with known rotational properties.
The low amplitude light curves of (471931) 2013 PH44 and (250112) 2002 KY14 can be explained either by albedo variegations, binarity or elongated shape. (353222) 2009 YD7 and (514312) 2016 AE193 could be rotating elongated objects, while 2017 CX33 and 2012 VU85 are the most promising binary candidates due to their slow rotations and higher light curve amplitudes. (463368) 2012 VU85 has the longest rotation period, P = 56.2 h observed among Centaurs. The P > 20 h rotation periods obtained for the two potential binaries underlines the importance of long, uninterrupted time series photometry of solar system targets that can suitably be performed only from spacecraft, like the Kepler in the K2 mission, and the currently running TESS mission.
•Light curves of ten Centaurs observed with the Kepler Space Telescope in the K2 mission are presented•Rotation periods are derived for six targets: 2002 KY14, 2009 YD7, 2013 PH44, 2012 VU85, 2016 AE193 and 2017 CX33•The rotation period of P = 56.2 h of 2012 VU85 is the longest ever observed among Centaurs•The long period (P>20h) targets are also candidate binary systems, as revealed by our analysis•The results emphasise the importance of long, uninterrupted photometry by space telescopes, like Kepler/K2 and TESS
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 195.Monitoring and Modeling the Deepwater Horizon Oil Spill: A Record-Breaking Enterprise presents an ...overview of some of the significant work that was conducted in immediate response to the oil spill in the Gulf of Mexico in 2010. It includes studies of in situ and remotely sensed observations and laboratory and numerical model studies on the four-dimensional oceanographic conditions in the gulf and their influence on the distribution and fate of the discharged oil. Highlights of the book include discussions of the following: immediate responses to the Deepwater Horizon oil spill using Integrated Ocean Observing System resources; monitoring the surface and subsurface oil using satellites, aircraft, vessels, and AUVs; mapping the oceanographic conditions using satellites, aircraft, vessels, drifters, and moorings; modeling the spreading of surface oil trajectories and the three-dimensional dispersal of subsurface hydrocarbon plumes; oil spill risk analyses and statistical studies on the fate of the oil; and laboratory investigation of ocean stratification related to subsurface plumes. This book will be of value to scientists interested in the Deepwater Horizon oil spill, the Gulf of Mexico, and the potential for conveyance of oil spilled in the Gulf of Mexico to the North Atlantic. A more technical audience may include those interested in oil spill detection, trajectory model forecasting, and risk analyses and those with an interest in applied oceanography, including scientists, engineers, environmentalists, natural and living marine resource managers and students within academic institutions, agencies, and industries who are involved with the Gulf of Mexico and other regions with offshore oil and gas exploration and production.
Oil and Water Andrea Miller; Shearon Roberts; Victoria LaPoe
04/2014
eBook
Along the Gulf Coast, history is often referenced as pre-Katrina or post-Katrina. However, the natural disaster that appalled the world in 2005 has been joined by another catastrophe, this one ...man-made--the greatest environmental and maritime accident of all time, the Deepwater Horizon Oil Spill. In less than five years, the Gulf Coast has experienced two colossal disasters, very different, yet very similar. And these two equally complex crises have resulted in a steep learning curve for all, but especially the journalists covering these enduring stories.
InOil and Water, the authors explore the media-fed experiences, the visuals and narratives associated with both disasters. Katrina journalists have reluctantly had to transform into oil spill journalists. The authors look at this process of growth from the viewpoints not only of the journalists, but also of the public and of the scientific community. Through a detailed analysis of the journalists' content, the authors tackle significant questions. This book assesses the quality of journalism and the effects that quality may have on the public. The authors argue that regardless of the type of journalism involved or the immensity of the events covered, successful reportage still depends on the fundamentals of journalism and the importance of following these tenets consistently in a crisis atmosphere, especially when confronted with enduring crises that are just years apart.
As the Gulf of Mexico recovers from the Deepwater Horizon oil spill, natural resource managers face the challenge of understanding the impacts of the spill and setting priorities for restoration ...work. The full value of losses resulting from the spill cannot be captured, however, without consideration of changes in ecosystem services--the benefits delivered to society through natural processes.An Ecosystem Services Approach to Assessing the Impacts of the Deepwater Horizon Oil Spill in the Gulf of Mexico discusses the benefits and challenges associated with using an ecosystem services approach to damage assessment, describing potential impacts of response technologies, exploring the role of resilience, and offering suggestions for areas of future research. This report illustrates how this approach might be applied to coastal wetlands, fisheries, marine mammals, and the deep sea -- each of which provide key ecosystem services in the Gulf -- and identifies substantial differences among these case studies. The report also discusses the suite of technologies used in the spill response, including burning, skimming, and chemical dispersants, and their possible long-term impacts on ecosystem services.
This book discusses one of the major U.S. disaster events within the past ten years. Scholars from various backgrounds address topics including the social and psychological impacts on Gulf Coast ...residents, the transformation of natural ecological systems, and media portrayals of the Obama administration and its response to this disaster.
It is as yet uncertain how the Gulf of Mexico oil spill will affect the health of clean-up workers and volunteers, residents, and visitors in the Gulf. The IOM recommends that the U.S. Department of ...Health and Human Services focus on researching psychological and behavioral health, exposure information to oil and dispersants, seafood safety, communication methods for health studies, and methods for conducting research in order to better understand and mitigate the effects on human health for this oil spill and for future disasters.
The inside story of the worst environmental disaster in American history.
Blowoutis the first comprehensive account of the legal, economic, and environmental consequences of the April 2010 blowout at ...a BP well in the Gulf of Mexico. The accident destroyed theDeepwater Horizonoil rig and killed eleven people. The resulting offshore oil discharge, the largest ever in the United States, polluted much of the Gulf for months, wreaking havoc on its inhabitants.A former Justice Department lawyer responsible for enforcing environmental laws, Daniel Jacobs tells the story that neither BP nor the federal government want heard: how the company and the government fell short, both in terms of preventing and coping with the accident.All-important details about the cause and aftermath of the disaster have emerged through court proceedings and with the passage of time. The key finding of the federal judge who presided over the civil litigation arising out of the disaster was that theDeepwater Horizonblowout resulted from BP's gross negligence.BP has paid tens of billions of dollars to settle claims and lawsuits arising from the accident. The company also has pled guilty to manslaughter in a separate criminal case. Yet, no one responsible for the accident itself is headed to prison. On the other hand, hundreds of people have been prosecuted for filing false claims against BP, some seventy-five of whom have been sentenced to prison.Blowoutis an important book for readers interested in the environment, sustainability, public policy, leadership, and the consequences of poor risk management.
In 2010 the Deepwater Horizon explosion and fire in the Gulf of Mexico caused the largest offshore oil spill in U.S. history, resulting in significant impacts on the region\'s environment and ...residents. Legal settlements with the companies held responsible led the federal government to ask the National Academy of Sciences to form and administer a 30-year program to enhance oil system safety, human health, and environmental resources in the Gulf of Mexico and other U.S. continental shelf areas where offshore oil and gas exploration and production occur or are under consideration. The new Gulf Research Program will receive $500 million to support activities using three broad approaches: research and development, education and training, and environmental monitoring.
The Gulf Research Program: A Strategic Vision establishes the Program\'s foundation and introduces its mission, goals, and objectives. It describes some initial activities and sets out the Program\'s vision for contributing lasting benefit to the Gulf region and the nation. The Program is an extraordinary opportunity to foster science on a regional scale and over the long term.
The document will be of interest to scientists, health professionals, engineers, and educators who wish to learn about, collaborate with, and submit proposals to the Program, and to all those who share the goal of enhancing resilience in areas where offshore energy production, vibrant communities, and dynamic ecosystems coexist.
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