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Co2 Driven Ocean Circulation Changes As An Amplifier Of Paleocene Eocene Thermal Maximum Hydrate Destabilization
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Book Synopsis CO2-driven ocean circulation changes as an amplifier of Paleocene-Eocene thermal maximum hydrate destabilization by : D.J. Lunt
Download or read book CO2-driven ocean circulation changes as an amplifier of Paleocene-Eocene thermal maximum hydrate destabilization written by D.J. Lunt and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Ocean Carbon Cycle and Climate by : Mick Follows
Download or read book The Ocean Carbon Cycle and Climate written by Mick Follows and published by Springer Science & Business Media. This book was released on 2004-08-03 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our desire to understand the global carbon cycle and its link to the climate system represents a huge challenge. These overarching questions have driven a great deal of scientific endeavour in recent years: What are the basic oceanic mechanisms which control the oceanic carbon reservoirs and the partitioning of carbon between ocean and atmosphere? How do these mechanisms depend on the state of the climate system and how does the carbon cycle feed back on climate? What is the current rate at which fossil fuel carbon dioxide is absorbed by the oceans and how might this change in the future? To begin to answer these questions we must first understand the distribution of carbon in the ocean, its partitioning between different ocean reservoirs (the "solubility" and "biological" pumps of carbon), the mechanisms controlling these reservoirs, and the relationship of the significant physical and biological processes to the physical environment. The recent surveys from the JGOFS and WOCE (Joint Global Ocean Flux Study and World Ocean Circulation Ex periment) programs have given us a first truly global survey of the physical and biogeochemical properties of the ocean. These new, high quality data provide the opportunity to better quantify the present oceans reservoirs of carbon and the changes due to fossil fuel burning. In addition, diverse process studies and time-series observations have clearly revealed the complexity of interactions between nutrient cycles, ecosystems, the carbon-cycle and the physical envi ronment.
Book Synopsis Environmental Changes on the North American Mid-Atlantic Shelf During the Paleocene Eocene Thermal Maximum by : Edward A. Ballaron
Download or read book Environmental Changes on the North American Mid-Atlantic Shelf During the Paleocene Eocene Thermal Maximum written by Edward A. Ballaron and published by . This book was released on 2018 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Changes on the North American Mid-Atlantic Shelf During the Paleocene Eocene Thermal Maximum Edward A. Ballaron The Paleocene-Eocene Thermal Maximum (PETM), a large hyperthermal during the Cenozoic (& sim;56 Ma) is characterized by a massive injection of depleted carbon into global reservoirs as indicated by a large negative carbon isotope excursion (CIE) of 3 & permil;-5 & permil; in marine and terrestrial sedimentary records. Previously studied open ocean (i.e., pelagic) cores have provided evidence for abrupt sea surface warming (5-10 & deg;C) and bottom water warming (4-5 & deg;C) as well as ocean acidification at the onset of the CIE. However, due to low sedimentation rates and truncation of pelagic sections via dissolution at the CIE, pelagic cores appear condensed or incomplete. Sites on the North American mid-Atlantic margin, provide a unique opportunity to examine both marine and terrestrial responses to a large magnitude climatic perturbation. Rapid and abrupt increases in the flux of siliciclastics including kaolinite to the shelf at the onset of the PETM, indicative of an enhanced hydrologic cycle, result in expanded PETM intervals allowing for higher resolution isotopic sampling. Stable isotopic and trace metal data from New Jersey sections (Millville, Ancora, Bass River and Wilson Lake) have also documented rapid warming, coastal ocean acidification and a freshening event at the onset of the CIE in agreement with evidence for an enhanced hydrologic cycle during the PETM. Maryland sections to the south (South Dover Bridge and Cambridge-Dorchester) studied here, are more proximal to the main drainage system in the Salisbury Embayment and therefore should have experienced environmental changes (salinity) to a greater degree than New Jersey sites. Here we present coupled stable isotopic (carbon and oxygen) and trace metal data (Mg/Ca) to constrain both changes in temperature as well as salinity on the Maryland mid-Atlantic shelf during the PETM. Data presented here shows a temperature increase at SDB and Cam-Dor of & sim;4-5 & deg;C for planktonic foraminifera and & sim;5-9 & deg;C for benthic foraminifera with oxygen derived temperatures being consistently larger than Mg/Ca derived temperatures. This indicates some salinity contribution to delta18O, artificially lowering oxygen derived temperatures. This is further supported by salinity calculations which display a freshening event at the onset of the CIE due to increased runoff. Also observed in this data set is a slight weakening in delta13C and delta18O depth gradients on the shelf. Changes in delta18O gradients can perhaps be attributed to greater warming at depth and a destabilization of the thermal stratification of the water column, similar to observations from New Jersey sites Millivlle and Ancora. The breakdown in vertical delta13C gradients was perhaps due to the vertical migration of mixed layer foraminifera taxa seeking refuge from warming surface waters. Another possible explanation for the change in vertical delta13C gradients is a change in upwelling patterns driven by hyperpycnal flow or changes in wind patterns driving coastal upwelling and bringing depleted delta13C to the surface.
Book Synopsis Fluvial Response to the Paleocene-Eocene Thermal Maximum in Western North America by : Brady Z. Foreman
Download or read book Fluvial Response to the Paleocene-Eocene Thermal Maximum in Western North America written by Brady Z. Foreman and published by . This book was released on 2013 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Paleocene-Eocene boundary ca. 56 million years ago is characterized by an extreme global warming event, known as the Paleocene-Eocene Thermal Maximum (PETM). The event is linked to the massive exogenic release of isotopically-light carbon into Earth's oceans and atmosphere, and is recognizable in the geologic record by an abrupt negative carbon isotope excursion in both organic and inorganic proxy records for duration of approximately 200,000 years. Previous studies indicate the PETM instigated massive changes in ocean and atmospheric circulation, which perturbed both terrestrial and marine environmental conditions and biotic systems. This study exploits the PETM to examine the effects of abrupt climate change on fluvial stratigraphy. The negative carbon isotope excursion associated with the PETM allows the timing and duration of the climate change to be identified independent of lithostratigraphic markers. Local climate shifts are constrained using circulation models, soil geochemistry, and paleobotanical records. Two areas are studied in detail, the Piceance Creek Basin of Colorado and the northern Bighorn Basin of Wyoming. In both areas anomalously thick and laterally persistent fluvial sand-bodies correlate with the PETM interval. In the Piceance Creek Basin the shift in fluvial deposition directly correlates with the onset of the PETM and persists beyond the carbon isotope excursion, whereas in the northern Bighorn Basin the shift appears to lag the isotope excursion by 10-20 thousand years and ends prior to the return to background climatic conditions. In the Piceance Creek Basin the change in sand-body geometry is associated with a shift to deeper paleoflow depths, wider channels, greater preservation of upper flow regime structures, prevalent crevasse splay deposits, and poorer drained floodplain soils. In contrast, within the Bighorn Basin there are no such changes and, apart from greater amalgamation, fluvial deposition appears to be largely unaffected by the PETM. When combined with other PETM terrestrial localities, the records demonstrate the PETM had substantial, but spatially diverse effects on basin-scale grain-size partitioning, discharge regimes, and river-floodplain dynamics. Aspects of the responses in the various basins are reminiscent of those predicted by two-dimensional basin-fill models, however, key differences highlight the role non-linearities, feedback loops, relaxation times, basin geometry, seasonality of precipitation, and vegetation factors play in determining large-scale depositional patterns. Consequently, it is concluded that short-term climatic events such as the PETM hold the potential to strongly alter basin sedimentation patterns, but that the sedimentologic-recorded climatic signal cannot be used to directly reconstruct paleoclimatic conditions. Instead a more appropriate approach is advocated that uses fluvial stratigraphy in concert with geochemical and other proxies to iteratively produce a more robust image of paleolandscape dynamics.
Book Synopsis Climate Forcing of Geological Hazards by : Bill McGuire
Download or read book Climate Forcing of Geological Hazards written by Bill McGuire and published by John Wiley & Sons. This book was released on 2012-12-10 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate Forcing of Geological Hazards provides a valuable new insight into how climate change is able to influence, modulate and trigger geological and geomorphological phenomena, such as earthquakes, tsunamis, volcanic eruptions and landslides; ultimately increasing the risk of natural hazards in a warmer world. Taken together, the chapters build a panorama of a field of research that is only now becoming recognized as important in the context of the likely impacts and implications of anthropogenic climate change. The observations, analyses and interpretations presented in the volume reinforce the idea that a changing climate does not simply involve the atmosphere and hydrosphere, but also elicits potentially hazardous responses from the solid Earth, or geosphere. Climate Forcing of Geological Hazards is targeted particularly at academics, graduate students and professionals with an interest in environmental change and natural hazards. As such, we are hopeful that it will encourage further investigation of those mechanisms by which contemporary climate change may drive potentially hazardous geological and geomorphological activity, and of the future ramifications for society and economy.
Book Synopsis Issues in Earth Sciences, Geology, and Geophysics: 2011 Edition by :
Download or read book Issues in Earth Sciences, Geology, and Geophysics: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 6804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Earth Sciences, Geology, and Geophysics: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Earth Sciences, Geology, and Geophysics. The editors have built Issues in Earth Sciences, Geology, and Geophysics: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Earth Sciences, Geology, and Geophysics in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Earth Sciences, Geology, and Geophysics: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Climate Change written by Juan A. Blanco and published by BoD – Books on Demand. This book was released on 2011-09-12 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an interdisciplinary view of the biophysical issues related to climate change. Climate change is a phenomenon by which the long-term averages of weather events (i.e. temperature, precipitation, wind speed, etc.) that define the climate of a region are not constant but change over time. There have been a series of past periods of climatic change, registered in historical or paleoecological records. In the first section of this book, a series of state-of-the-art research projects explore the biophysical causes for climate change and the techniques currently being used and developed for its detection in several regions of the world. The second section of the book explores the effects that have been reported already on the flora and fauna in different ecosystems around the globe. Among them, the ecosystems and landscapes in arctic and alpine regions are expected to be among the most affected by the change in climate, as they will suffer the more intense changes. The final section of this book explores in detail those issues.
Book Synopsis Water Worlds in the Solar System by : Antony Joseph
Download or read book Water Worlds in the Solar System written by Antony Joseph and published by Elsevier. This book was released on 2022-11-25 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Worlds in the Solar System: In Search of Habitable Environments and Life is a comprehensive reference on the formation, availability, habitability potential, and astrobiological implications of water in the Solar System. The book provides understanding of the importance of water on Earth to elucidate potential water and biosignature sources on other bodies in the Solar System. It covers processes involved in the formation of Earth and its Moon, genesis of water on those bodies, events on early Earth, and other processes that are applicable to celestial bodies in the Solar System, directly correlating data available on water on other bodies to over 15 Earth analogue sites. This book forms a comprehensive overview on water in the Solar System, from formation to biosignature and habitability considerations. It is ideal for academics, researchers and students working in the field of planetary science, extraterrestrial water research and habitability potential. Presents a comprehensive reference on water in the Solar System, developing readers’ understanding of the importance and occurrence of water on Earth and beyond, all from an oceanographer’s perspective Contrasts terrestrial analogues in relation to their roles in understanding and exploring ocean worlds and habitability Includes numerous figures, illustrations, tables and videos to help readers better understand concepts covered
Book Synopsis Large Igneous Provinces by : Richard E. Ernst
Download or read book Large Igneous Provinces written by Richard E. Ernst and published by John Wiley & Sons. This book was released on 2021-02-09 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library. Exploring the links between Large Igneous Provinces and dramatic environmental impact An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions. Environmental changes caused by LIPs and SLIPs include rapid global warming, global cooling ('Snowball Earth'), oceanic anoxia events, mercury poisoning, atmospheric and oceanic acidification, and sea level changes. Continued research to characterize the effects of these extremely large and typically short duration igneous events on atmospheric and oceanic chemistry through Earth history can provide lessons for understanding and mitigating modern climate change. Large Igneous Provinces: A Driver of Global Environmental and Biotic Changes describes the interactions between the effects of LIPs and other drivers of climatic change, the limits of the LIP effect, and the atmospheric and oceanic consequences of LIPs in significant environmental events. Volume highlights include: Temporal record of large igneous provinces (LIPs) Environmental impacts of LIP emplacement Precambrian, Proterozoic, and Phanerozoic case histories Links between geochemical proxies and the LIP record Alternative causes for environmental change Key parameters related to LIPs and SLIPs for use in environmental change modelling Role of LIPs in Permo-Triassic, Triassic-Jurassic, and other mass extinction events The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Book Synopsis Large Igneous Provinces by : Richard E. Ernst
Download or read book Large Igneous Provinces written by Richard E. Ernst and published by Cambridge University Press. This book was released on 2014-09-25 with total page 667 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large igneous provinces (LIPs) are intraplate magmatic events, involving volumes of mainly mafic magma upwards of 100,000 km3, and often above 1 million km3. They are linked to continental break-up, global environmental catastrophes, regional uplift and a variety of ore deposit types. In this up-to-date, fascinating book, leading expert Richard E. Ernst explores all aspects of LIPs, beginning by introducing their definition and essential characteristics. Topics covered include continental and oceanic LIPs; their origins, structures, and geochemistry; geological and environmental effects; association with silicic, carbonatite and kimberlite magmatism; and analogues of LIPs in the Archean, and on other planets. The book concludes with an assessment of LIPs' influence on natural resources such as mineral deposits, petroleum and aquifers. This is a one-stop resource for researchers and graduate students in a wide range of disciplines, including tectonics, igneous petrology, geochemistry, geophysics, Earth history, and planetary geology, and for mining industry professionals.
Book Synopsis Sea-surface Temperature Estimation by : C. J. Van Vliet
Download or read book Sea-surface Temperature Estimation written by C. J. Van Vliet and published by . This book was released on 1967 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: An autocorrelation analysis of six temperature records from the North Pacific and North Atlantic up to 40 years in length showed the existence of an oscillatory function with period 1 year for all the stations studied, and of another oscillatory function with period 0.5 year for most of the stations. A regression model containing annual and semiannual oscillatory terms was found to provide a good statistical fit to the observed daily temperatures. No long-term trends were detected in the sequences of annual mean temperatures, but there were significant differences among these temperatures. (Author).
Download or read book Global Warming written by David Archer and published by John Wiley & Sons. This book was released on 2011-09-21 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Archer's Global Warming: Understanding the Forecast 2nd Edition, is the first real text to present the science and policy surrounding climate change at the right level. Accompanying videos, simulations and instructional support makes it easier to build a syllabus to improve and create new material on climate change. Archer's polished writing style makes the text entertaining while the improved pedagogy helps better understand key concepts, ideas and terms. This edition has been revised and reformulated with a new chapter template of short chapter introductions, study questions at the end, and critical thinking puzzlers throughout. Also a new asset for the BCS was created that will give ideas for assignments and topics for essays and other projects. Furthermore, a number of interactive models have been built to help understand the science and systems behind the processes.
Book Synopsis Science, Music, And Mathematics: The Deepest Connections by : Michael Edgeworth Mcintyre
Download or read book Science, Music, And Mathematics: The Deepest Connections written by Michael Edgeworth Mcintyre and published by World Scientific. This book was released on 2021-11-03 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professor Michael Edgeworth McIntyre is an eminent scientist who has also had a part-time career as a musician. From a lifetime's thinking, he offers this extraordinary synthesis exposing the deepest connections between science, music, and mathematics, while avoiding equations and technical jargon. He begins with perception psychology and the dichotomization instinct and then takes us through biological evolution, human language, and acausality illusions all the way to the climate crisis and the weaponization of the social media, and beyond that into the deepest parts of theoretical physics — demonstrating our unconscious mathematical abilities.He also has an important message of hope for the future. Contrary to popular belief, biological evolution has given us not only the nastiest, but also the most compassionate and cooperative parts of human nature. This insight comes from recognizing that biological evolution is more than a simple competition between selfish genes. Rather, he suggests, in some ways it is more like turbulent fluid flow, a complex process spanning a vast range of timescales.Professor McIntyre is a Fellow of the Royal Society of London (FRS) and has worked on problems as diverse as the Sun's magnetic interior, the Antarctic ozone hole, jet streams in the atmosphere, and the psychophysics of violin sound. He has long been interested in how different branches of science can better communicate with each other and with the public, harnessing aspects of neuroscience and psychology that point toward the deep 'lucidity principles' that underlie skilful communication.
Book Synopsis Carbon Sequestration for Climate Change Mitigation and Adaptation by : David A. N. Ussiri
Download or read book Carbon Sequestration for Climate Change Mitigation and Adaptation written by David A. N. Ussiri and published by Springer. This book was released on 2017-03-28 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an understanding of the role of human activities in accelerating change in global carbon cycling summarizes current knowledge of the contemporary carbon budget. Starting from the geological history, this volume follows a multidisciplinary approach to analyze the role of human activities in perturbing carbon cycling by quantifying changes in different reservoirs and fluxes of carbon with emphasis on the anthropogenic activities, especially after the industrial revolution. It covers the role of different mitigation options – natural ecological, engineered, and geoengineered processes as well as the emerging field of climate engineering in avoiding dangerous abrupt climate change. Although the targeted audience is the educators, students, researchers and scientific community, the simplified analysis and synthesis of current and up to date scientific literature makes the volume easier to understand and a tool policy makers can use to make an informed policy decisions.
Book Synopsis Dictionary of Oil, Gas, and Petrochemical Processing by : Alireza Bahadori
Download or read book Dictionary of Oil, Gas, and Petrochemical Processing written by Alireza Bahadori and published by CRC Press. This book was released on 2013-12-04 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: In industry, miscommunication can cause frustration, create downtime, and even trigger equipment failure. By providing a common ground for more effective discourse, the Dictionary of Oil, Gas, and Petrochemical Processing can help eliminate costly miscommunication.An essential resource for oil, gas, and petrochemical industry professionals, enginee
Book Synopsis Ecosystem Services and Carbon Sequestration in the Biosphere by : Rattan Lal
Download or read book Ecosystem Services and Carbon Sequestration in the Biosphere written by Rattan Lal and published by Springer Science & Business Media. This book was released on 2013-05-29 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological functions and human wellbeing depend on ecosystem services. Among the ecosystem services are provisional (food, feed, fuel, fiber), regulating (carbon sequestration, waste recycling, water cleansing), cultural (aesthetic, recreational, spiritual), and supporting services (soil formation, photosynthesis, nutrient cycling). Many relationships of various degree exist among ecosystem services. Thus, land use and soil management to enhance biospheric carbon sinks for carbon sequestration requires a comprehensive understanding on the effects on ecosystem services. Payments for ecosystem services including carbon pricing must address the relationship between carbon sequestration and ecosystem services to minimize risks of overshoot, and promote sustainable use of land-based carbon sinks for human wellbeing.
Book Synopsis The Phanerozoic Carbon Cycle by : Robert A. Berner
Download or read book The Phanerozoic Carbon Cycle written by Robert A. Berner and published by Oxford University Press. This book was released on 2004-08-19 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "carbon cycle" is normally thought to mean those processes that govern the present-day transfer of carbon between life, the atmosphere, and the oceans. This book describes another carbon cycle, one which operates over millions of years and involves the transfer of carbon between rocks and the combination of life, the atmosphere, and the oceans. The weathering of silicate and carbonate rocks and ancient sedimentary organic matter (including recent, large-scale human-induced burning of fossil fuels), the burial of organic matter and carbonate minerals in sediments, and volcanic degassing of carbon dioxide contribute to this cycle. In The Phanerozoic Carbon Cycle, Robert Berner shows how carbon cycle models can be used to calculate levels of atmospheric CO[2 and O[2 over Phanerozoic time, the past 550 million years, and how results compare with independent methods. His analysis has implications for such disparate subjects as the evolution of land plants, the presence of giant ancient insects, the role of tectonics in paleoclimate, and the current debate over global warming and greenhouse gases
