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  • 1
    Schlagwort(e): Water. ; Hydrology. ; Freshwater ecology. ; Marine ecology. ; Environmental chemistry. ; Environmental management. ; Environmental engineering. ; Biotechnology. ; Bioremediation. ; Water. ; Freshwater and Marine Ecology. ; Environmental Chemistry. ; Environmental Management. ; Environmental Engineering/Biotechnology.
    Beschreibung / Inhaltsverzeichnis: Section I Overview -- 1 Introduction to the volume -- 2 Deep-water oil and gas production in the Gulf of Mexico, and related global trends -- 3 Spilled oil composition and the natural carbon cycle: The true drivers of environmental fate and effects of oil spills -- Section II Geological, Chemical, Ecological and Physical Oceanographic Settings and Baselines for Deep Oil Spills in the Gulf of Mexico -- 4 An overview of the geologic origins of hydrocarbons and production trends in the Gulf of Mexico -- 5 Gulf of Mexico (GoM) bottom sediments and depositional processes: A baseline for future oil spills -- 6 Benthic faunal baselines in the Gulf of Mexico: A precursor to evaluate future impacts -- 7 Linking abiotic variables with macrofaunal and meiofaunal abundance and community -- 8 The asphalt ecosystem of the southern Gulf of Mexico: abyssal habitats across space and time -- 9 Geochemical and faunal characterization in the sediments off the Cuban north and northwest coast -- 10 Mapping isotopic and dissolved organic matter baselines in waters and sediments of Gulf of Mexico -- 11 Toward a predictive understanding of the benthic microbial community response to oiling on the northern Gulf of Mexico coast -- 12 Combining isoscapes with tissue-specific isotope records to re-create the geographic histories of fish -- 13 The utility of stable and radio isotopes in fish tissues as biogeochemical tracers of marine oil spill food web effects -- 14 Modernizing protocols for aquatic toxicity testing of oil and dispersant -- 15 Polycyclic aromatic hydrocarbon baselines in Gulf of Mexico fishes -- 16 Case Study: Using a combined laboratory, field, and modeling approach to assess oil spill impacts -- Section III Simulations of Future Deep Spills -- 17 Testing the effect of MOSSFA (Marine Oil Snow Sedimentation and Flocculent Accumulation) events in benthic microcosms -- 18 Physical processes influencing the sedimentation and lateral transport of MOSSFA in the NE Gulf of Mexico -- 19 Simulating deep oil spills beyond the Gulf of Mexico -- Section IV Comparisons of likely impacts from simulated spills -- 20 Comparison of the spatial extent, impacts to shorelines, and ecosystem and 4-dimensional characteristics of simulated oil spills -- 21 A predictive strategy for mapping locations where future MOSSFA events are expected -- 22 Connectivity of Gulf of Mexico continental shelf fish populations and implications of simulated oil spills -- 23 Evaluating the effectiveness of fishery closures for deep oil spills using a 4-dimensional model -- 24 As Gulf oil extraction goes deeper, who is at risk? Community structure, distribution, and connectivity of the deep-pelagic fauna -- 25 Evaluating impacts of deep oil spills on oceanic marine mammals -- 26 Comparative environmental sensitivity of offshore Gulf of Mexico waters potentially impacted by ultra-deep oil well blowouts -- Section V Preparing for and Responding to the Next Deepwater Spill -- 27 Preparing for the inevitable: ecological and indigenous community impacts of oil spill-related mortality in the United States Arctic marine ecosystem -- 28 Summary of contemporary research on use of chemical dispersants for deep sea oil spills -- 29 Perspectives on research, technology, policy and human resources for improved management of ultra-deep oil and gas resources and responses to oil spills -- Index.
    Kurzfassung: It has often been said that generals prepare for the next war by re-fighting the last. The Deepwater Horizon (DWH) oil spill was unlike any previous – an underwater well blowout 1,500 meters deep. Much has been learned in the wake of DWH and these lessons should in turn be applied to both similar oil spill scenarios and those arising from “frontier” explorations by the marine oil industry. The next deep oil well blowout may be at 3,000 meters or even deeper. This volume summarizes regional (Gulf of Mexico) and global megatrends in marine oil exploration and production. Research in a number of key areas including the behavior of oil and gas under extreme pressure, impacts on biological resources of the deep sea, and the fate of oil and gas released in spills is synthesized. A number of deep oil spills are simulated with detailed computer models, and the likely effects of the spills and potential mitigation measures used to combat them are compared. Recommended changes in policies governing marine oil exploration and development are proposed, as well as additional research to close critical and emerging knowledge gaps. This volume synthesizes state-of-the-art research in deep oil spill behavior and response. It is thus relevant for government and industry oil spill responders, policy formulators and implementers, and academics and students desiring an in-depth and balanced overview of key issues and uncertainties surrounding the quest for deep oil and potential impacts on the environment.
    Materialart: Online-Ressource
    Seiten: XII, 542 p. 167 illus., 138 illus. in color. , online resource.
    Ausgabe: 1st ed. 2020.
    ISBN: 9783030129637
    DDC: 551.48
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Schlagwort(e): Water. ; Hydrology. ; Freshwater ecology. ; Marine ecology. ; Environmental chemistry. ; Environmental management. ; Environmental engineering. ; Biotechnology. ; Bioremediation. ; Water. ; Freshwater and Marine Ecology. ; Environmental Chemistry. ; Environmental Management. ; Environmental Engineering/Biotechnology.
    Beschreibung / Inhaltsverzeichnis: Section I. Introduction -- 1. Introduction to the Volume -- Section II. Physics and Chemistry of Deep Oil Well Blowouts -- 2. The importance of understanding fundamental physics and chemistry of deep oil blowouts -- 3. Physical and chemical properties of oil and gas under reservoir and deep-sea conditions -- 4. Jet formation at the blowout site -- 5. Behavior of rising droplets and bubbles – impact on the physics of deep-sea blowouts and oil fate -- Section III. Transport and Degradation of Oil and Gas from Deep Spills -- 6. The importance of understanding transport and degradation of oil and gasses from deep sea blowouts -- 7. Biodegradation of petroleum hydrocarbons in the deep sea -- 8 Partitioning of organics between oil and water phases with and without the application of dispersants -- 9. Dynamic coupling of near-field and far-field models -- 10. Effects of oil properties and slick thickness on dispersant field effectiveness and oil fate -- 11. Far-field modeling of a deep-sea blowout: sensitivity studies of initial conditions, biodegradation, sedimentation and sub-surface dispersant injection on surface slicks and oil plume concentrations -- Section IV. Oil Spill Records in Deep Sea Sediments -- 12. Formation and sinking of MOSSFA (Marine Oil Snow Sedimentation and Flocculent Accumulation) events: Past and Present -- 13. The sedimentary record of MOSSFA events in the Gulf of Mexico: A comparison of the Deepwater Horizon (2010) and Ixtoc 1 (1979) oil spills -- 14. Characterization of the sedimentation associated with the Deepwater Horizon blowout: depositional pulse, initial response, and stabilization -- 15. Applications of FTICR-MS in oil spill studies -- 16. Changes in redox conditions of surface sediments following the Deepwater Horizon and Ixtoc 1 events -- 17. Long-term preservation of oil spill events in sediments: the case for the Deepwater Horizon spill in the northern Gulf of Mexico -- 18. Effect of marine snow on microbial oil degradation -- 19. Molecular legacy of the 1979 Ixtoc 1 oil spill in deep-sea sediments of the southern Gulf of Mexico -- 20. 40 years of weathering of coastal oil residues in the southern Gulf of Mexico -- Section V. Impacts of Deep Spills on Plankton, Fishes, and Protected Resources -- 21. Overview of ecological impacts of deep spills -- 22. Deep-sea benthic faunal impacts and community evolution before, during and after the Deepwater Horizon event -- 23. Impact and resilience of benthic foraminifera in the aftermath of the Deepwater Horizon and Ixtoc 1 oil spills -- 24. Chronic sublethal effects observed in wild caught fish following two major oil spills in the Gulf of Mexico: Deepwater Horizon and Ixtoc 1 -- 25. Impacts of deep spills on fish and fisheries -- 26. Impacts of the Deepwater Horizon oil spill on marine mammals and sea turtles -- Section VI. Toxicology of Deep Oil Spills -- 27. Ecotoxicology of deep ocean spills -- 28 A synthesis of Deepwater Horizon oil, chemical dispersant and chemically dispersed oil aquatic standard laboratory acute and chronic toxicity studies -- 29. Digging deeper than LC/EC50: non-traditional endpoints and non-model species in oil spill toxicology -- 30. Genetics and oil: transcriptomics, epigenetics and population genomics as tools to understand animal responses to exposure across different time scales -- Section VI. I Ecosystem-level modeling of deep oil spill impacts -- 31. A synthesis of top down and bottom up impacts of the Deepwater Horizon oil spill using ecosystem modeling -- 32. Comparing ecosystem model outcomes between Ixtoc 1 and Deepwater Horizon oil spills -- 33. Effects of the Deepwater Horizon oil spill on Human Communities: Catch and Economic Impacts -- Section VIII. Summary -- 34. Summary of Major Themes – Deep Oil Spills -- Index.
    Kurzfassung: 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.
    Materialart: Online-Ressource
    Seiten: XIV, 611 p. 152 illus., 110 illus. in color. , online resource.
    Ausgabe: 1st ed. 2020.
    ISBN: 9783030116057
    DDC: 551.48
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Signatur: AWI G5-02-0003
    Beschreibung / Inhaltsverzeichnis: The northern North Atlantic is one of the regions most sensitive to past and present global changes. This book integrates the results of an interdisciplinary project studying the properties of the Greenland-Iceland-Norwegian Seas and the processes of pelagic and benthic particle formation, particle transport, and deposition in the deep-sea sediments. Ice-related and biogeochemical processes have been investigated to decipher the spatial and temporal variability of the production and fate of organic carbon in this region. Isotopic stratigraphy, microfossil assemblages and paleotemperatures are combined to reconstruct paleoceanographic conditions and to model past climatic changes in the Late Quaternary. The Greenland-Iceland-Norwegian Seas can now be considered one of the best studied subbasins of the world's oceans.
    Materialart: Monographie ausleihbar
    Seiten: VIII, 500 S. : graph. Darst., Kt.
    ISBN: 3540672311
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZSP-168-73
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 156 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 73
    Sprache: Deutsch
    Anmerkung: Zugl.: Bremen, Univ., Diss., 1990
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Mud volcanism is an important natural source of the greenhouse gas methane to the hydrosphere and atmosphere. Recent investigations show that the number of active submarine mud volcanoes might be much higher than anticipated (for example, see refs 3–5), and that gas emitted ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 247 (1971), S. 263-266 
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Experimental evidence of the existence of a surface plasma oscillation in the region of the onset of interband transitions near 2.5 eV in gold is given by electron energy loss measurements.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 250 (1972), S. 87-98 
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The energy loss functions Im $$\left( { - \frac{1}{\varepsilon }} \right)$$ of Au, Ag and Ag-Au alloys are determined from energy loss spectra of fast electrons, using different methods in the energy regions 2 to 4 eV and 4 to 40 eV. The optical constants ɛ1 und ɛ2 are calculated from the energy loss functions by Kramers-Kronig analysis. The experimental results show a different dependence in the optical behaviour of the alloy on the alloying component: if Au is added to Ag, the effect on the optical properties is stronger than in the reverse case. Between 50 and 70 at.% Au in the alloy the specific properties of Ag and Au vanish completely. An interpretation of the energy loss maxima as surface plasma oscillation, volume plasma oscillation and interband transition is attempted.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    ISSN: 0173-0835
    Schlagwort(e): Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Capillary zone electrophoresis (CZE) has been investigated as an alternative method to analyze the carbohydrate moieties of glycoproteins. Carbohydrate-mediated microheterogeneity of the recombinant plasminogen activator (rt-PA) was examined. The glycoprotein was resolved in multiple electrophoretic species using CZE but the separation was complicated by adsorption of the molecules to the wall of the capillary. The influence of several parameters, such as pH, molarity of the buffer and addition of a cationic additive, on the separation of glycopeptides was investigated. High resolution and reproducible separations of rt-PA glycopeptides carrying hybrid and complex type chains were obtained using either a 100 mM phosphate buffer, pH 6.6, or a 100 mM Tricine buffer, pH 8.2, containing 1.25 mM of putrescine. N-Oligosaccharides from fetuin, t-PA and α1-acid glycoprotein were separated within 20 min on the basis of both their sialic acid content and their structure. The use of an oligosaccharide fingerprinting technique, such as the present one, could have many applications in biotechnology to assess, for example, the consistency of production of a glycoprotein or for analytical glycoprotein chemistry.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Publikationsdatum: 1982-02-01
    Print ISSN: 0031-9228
    Digitale ISSN: 1945-0699
    Thema: Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Publikationsdatum: 2012-08-24
    Beschreibung: Multiferroicity in an organic charge-transfer salt that is suggestive of electric-dipole-driven magnetism Nature Materials 11, 755 (2012). doi:10.1038/nmat3400 Authors: Peter Lunkenheimer, Jens Müller, Stephan Krohns, Florian Schrettle, Alois Loidl, Benedikt Hartmann, Robert Rommel, Mariano de Souza, Chisa Hotta, John A. Schlueter & Michael Lang Multiferroics, showing simultaneous ordering of electrical and magnetic degrees of freedom, are remarkable materials as seen from both the academic and technological points of view. A prominent mechanism of multiferroicity is the spin-driven ferroelectricity, often found in frustrated antiferromagnets with helical spin order. There, as for conventional ferroelectrics, the electrical dipoles arise from an off-centre displacement of ions. However, recently a different mechanism, namely purely electronic ferroelectricity, where charge order breaks inversion symmetry, has attracted considerable interest. Here we provide evidence for ferroelectricity, accompanied by antiferromagnetic spin order, in a two-dimensional organic charge-transfer salt, thus representing a new class of multiferroics. We propose a charge-order-driven mechanism leading to electronic ferroelectricity in this material. Quite unexpectedly for electronic ferroelectrics, dipolar and spin order arise nearly simultaneously. This can be ascribed to the loss of spin frustration induced by the ferroelectric ordering. Hence, here the spin order is driven by the ferroelectricity, in marked contrast to the spin-driven ferroelectricity in helical magnets.
    Print ISSN: 1476-1122
    Digitale ISSN: 1476-4660
    Thema: Chemie und Pharmazie , Maschinenbau , Allgemeine Naturwissenschaft , Physik
    Publiziert von Springer Nature
    Standort Signatur Erwartet Verfügbarkeit
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