Download or read book Climate change in the circum North Atlantic region during the last deglaciation written by J.T. OVERPECK and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Changes in the North Atlantic Region During the Last Deglaciation written by Karin P. Boessenkool and published by . This book was released on 2001 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abrupt Climate Change written by National Research Council and published by National Academies Press. This book was released on 2002-04-23 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The climate record for the past 100,000 years clearly indicates that the climate system has undergone periodic-and often extreme-shifts, sometimes in as little as a decade or less. The causes of abrupt climate changes have not been clearly established, but the triggering of events is likely to be the result of multiple natural processes. Abrupt climate changes of the magnitude seen in the past would have far-reaching implications for human society and ecosystems, including major impacts on energy consumption and water supply demands. Could such a change happen again? Are human activities exacerbating the likelihood of abrupt climate change? What are the potential societal consequences of such a change? Abrupt Climate Change: Inevitable Surprises looks at the current scientific evidence and theoretical understanding to describe what is currently known about abrupt climate change, including patterns and magnitudes, mechanisms, and probability of occurrence. It identifies critical knowledge gaps concerning the potential for future abrupt changes, including those aspects of change most important to society and economies, and outlines a research strategy to close those gaps. Based on the best and most current research available, this book surveys the history of climate change and makes a series of specific recommendations for the future.
Download or read book Response of Interior North America to Abrupt Climate Oscillations in the the North Atlantic Region During the Last Deglaciation written by and published by . This book was released on 2001 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid climate changes in the tropical Atlantic region during the last deglaciation written by K.A. HUGHEN and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiocarbon After Four Decades written by Ervin Taylor and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiocarbon After Four Decades: An Interdisciplinary Perspective commemorates the 40th anniversary of radiocarbon dating. The volume presents discussions of every aspect of this dating technique, as well as chronicles of its development and views of future advancements and applications. All of the 64 authors played major roles in establishment, development or application of this revolutionary scientific tool. The 35 chapters provide a solid foundation in the essential topics of radiocarbon dating: Historical Perspectives; The Natural Carbon Cycle; Instrumentation and Sample Preparation; Hydrology; Old World Archaeology; New World Archaeology; Earth Sciences; and Biomedical Applications.
Download or read book Abrupt Climate Change in the Atlantic Ocean During the Last 20 000 Years written by Rosemarie Evangeline Came and published by . This book was released on 2005 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) At [approx.] 18.5 ka, the southern source contribution to the Florida Current began to increase significantly, marking the onset of a transition from a glacial circulation pattern to a deglacial pattern, which lasted from [approx.] 17 ka to [approx.] 14 ka. At [approx.] 12.5 ka, following the onset of the Younger Dryas cooling in the North Atlantic and the reduction in North Atlantic Deep Water (NADW) production, the influence of southern source waters within the Florida Current decreased abruptly. A renewed influence of southern source waters occurred at [approx.] 9 ka, concurrent with the establishment of Holocene warmth in the North Atlantic region.
Download or read book Ice Drift Ocean Circulation and Climate Change written by Jens Bischof and published by Springer Science & Business Media. This book was released on 2000-11 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The issue of global warming and climate change is of continuous concern. Since the 1970s, it bas been shown that the pack-ice around the Arctic Ocean is thinning, the margin of permafrost is moving north and the vegetation in the high northern parts of the world is changing (the 'greening' of the Arctic). But are these changes the result of human activity or simply regular variations of the Earth's climate system? Over thousands of years, a continuous archive of iceberg and sea ice drift bas formed in the deep-sea sediments, revealing the place of the ice's origin and allowing a reconstruction of the surface currents and the climate of the past. However, the drift of floating ice from one place to another is not just a passive record of past ocean circulation. It actively influences and changes the surface ocean circulation, thus having a profound effect on climate change. Ice Drift, Ocean Circulation and Climate Change is the first book to focus on the interactions between ice, the ocean and the atmosphere and to describe how these three components of the climate system influence each other. It makes clear the positive contribution of paleoclimatology and paleoceanography and should be read by anyone concerned with global warming and climate change.
Download or read book Climate Change in the Polar Regions written by John Turner and published by Cambridge University Press. This book was released on 2011-05-12 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive, up-to-date account of polar climate change over the last one million years for researchers and advanced students in polar science.
Download or read book Global Climates since the Last Glacial Maximum written by H. E. Wright and published by U of Minnesota Press. This book was released on 1993 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traces the evolution of the global climate since the last period of glacial maximum approximately 18,000 years ago. Examines how changes in climate have transformed Earth's biomes in this period and how this change has influenced the evolution of life.
Download or read book Deglaciation of the Champlain Valley New York and Vermont and Its Possible Effects on North Atlantic Climate Change written by John Allen Rayburn and published by . This book was released on 2004 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Potential Effects of Global Climate Change on the United States written by and published by . This book was released on 1989 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatic Variations and Forcing Mechanisms of the Last 2000 Years written by Philip Douglas Jones and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: A profound knowledge of the past climate is vital for our understanding of global warming. The past 2000 years are both the period which is of most relevance to the next century and that for which there is the most evidence. High-resolution proxy records for this period are available from a variety of sources. Five sections consider dendroclimatology, ice cores, corals, historical records, lake varves, and other indicators. The final two sections cover the histories of various forcing factors and attempt to bring together records from a variety of sources and provide explanations.
Download or read book Effects of Past Global Change on Life written by National Research Council and published by National Academies Press. This book was released on 1995-02-01 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: What can we expect as global change progresses? Will there be thresholds that trigger sudden shifts in environmental conditionsâ€"or that cause catastrophic destruction of life? Effects of Past Global Change on Life explores what earth scientists are learning about the impact of large-scale environmental changes on ancient lifeâ€"and how these findings may help us resolve today's environmental controversies. Leading authorities discuss historical climate trends and what can be learned from the mass extinctions and other critical periods about the rise and fall of plant and animal species in response to global change. The volume develops a picture of how environmental change has closed some evolutionary doors while opening othersâ€"including profound effects on the early members of the human family. An expert panel offers specific recommendations on expanding research and improving investigative toolsâ€"and targets historical periods and geological and biological patterns with the most promise of shedding light on future developments. This readable and informative book will be of special interest to professionals in the earth sciences and the environmental community as well as concerned policymakers.
Download or read book Effects of Past Global Change on Life written by Panel on Effects of Past Global Change on Life and published by National Academies Press. This book was released on 1995-01-15 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: What can we expect as global change progresses? Will there be thresholds that trigger sudden shifts in environmental conditions--or that cause catastrophic destruction of life? Effects of Past Global Change on Life explores what earth scientists are learning about the impact of large-scale environmental changes on ancient life--and how these findings may help us resolve today's environmental controversies. Leading authorities discuss historical climate trends and what can be learned from the mass extinctions and other critical periods about the rise and fall of plant and animal species in response to global change. The volume develops a picture of how environmental change has closed some evolutionary doors while opening others--including profound effects on the early members of the human family. An expert panel offers specific recommendations on expanding research and improving investigative tools--and targets historical periods and geological and biological patterns with the most promise of shedding light on future developments. This readable and informative book will be of special interest to professionals in the earth sciences and the environmental community as well as concerned policymakers.
Download or read book The Last Deglaciation written by Edouard Bard and published by Springer. This book was released on 1992 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insights from Deglacial Changes in the Southern Ocean and Atlantic Meridional Overturning Circulation During the Last Deglaciation written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, we will study the climate changes during the last deglaciation from two aspects: the Southern Ocean and the Atlantic Meridional Overturning Circulation (AMOC). In the Southern Ocean, the zonal mean and local upwelling are driven by different mechanisms and then exhibits distinct deglacial features. Over the Antarctic Circumpolar Current (ACC) region, the zonal mean upwelling was primarily wind-driven via the zonal mean Ekman pumping while the local upwelling was wind- and buoyancy-driven and tightly related to the local topography. During the last deglaciation, upwelling downstream of the submarine ridges exhibited a significant deglacial increase, which was induced by the deglacial transition in the surface buoyancy forcing. For the AMOC, enlightened by its deglacial changes, a diagnostic indicator is proposed to monitor the AMOC stability, which is a diagnostic for a basin-wide salt-advection feedback and defined as the difference between the freshwater transport induced by the AMOC across the southern border of the Atlantic and the liquid freshwater transport from the Arctic to the North Atlantic. As validated in CCSM3, for an AMOC in the conveyor state, a positive indicator (freshwater convergence) in the Atlantic basin indicates a monostable AMOC and a negative indicator (freshwater divergence) indicates a bistable AMOC. Based on the indicator, we prove that salinity biases in coupled GCMs can distort the AMOC stability. In CCSM3, salinity biases lead to a freshwater convergence across the Atlantic basin, which thus induces a monostable AMOC. With the SSS biases corrected, the model shows a freshwater divergence across the Atlantic basin, as consistent with the observation. More importantly, it simulates a bistable AMOC, as indicated by the freshwater divergence. Therefore, we estimate that, the realistic AMOC is bistable in the present day climate.
