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Author : Carolyn F. Lindley
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (563 download)
Download or read book Millennial-scale Variability During the Pleistocene written by Carolyn F. Lindley and published by . This book was released on 2004 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sarah Marie White
Publisher :
ISBN 13 : 9781267760302
Total Pages : pages
Book Rating : 4.7/5 (63 download)
Download or read book Millennial-scale Variability to 735 Ka written by Sarah Marie White and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Determining the ultimate cause and effect of millennial-scale climate variability remains an outstanding problem in paleoclimatology, partly due to the lack of high-resolution records extending beyond the last glacial period. New cores from Santa Barbara Basin provide ~5000 year "windows" of climate with ~50-year resolution dating to ~293 ka (the MIS 8.6-8.5 transition), ~460 ka (MIS 12), and ~735 ka (MIS 18). These records span the Late Pleistocene, during which the 100-kyr cycle gained power in global climate records and the magnitude of glacial-interglacial cyclicity increased. Thus, these records provide a test of the dependence of millennial-scale behavior on variations in glacial-interglacial cyclicity. Planktonic foraminiferal [delta]18O indicates that millennial-scale variability is present in all three intervals, and is similar to that during MIS 3. Stadial G. bulloides [delta]18O values were 2.75-1.75 per mil (mean 2.25 per mil) and interstadial values were 1.75- 0.5 per mil (mean 1 per mil), with rapid interstadial initiations of 1-2 per mil, as in MIS 3. Interstadials were ~300-1300 years long and spaced ~750-1500 years apart, consistent with MIS 3 interstadial durations. Upwelling increased during interstadials, but did not vary synchronously with surface water temperatures, again similar to MIS 3. These high- resolution records provide evidence that millennial-scale variability was an inherent feature of glacial climates in the Northern Hemisphere throughout the past 735 ka.
Author : Sharon L. Kanfoush
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.:/5 (58 download)
Download or read book Millennial-scale Variability in Late Pleistocene Ice-rafting to the South Atlantic Ocean written by Sharon L. Kanfoush and published by . This book was released on 2002 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Geological Society of London
Publisher : Geological Society of London
ISBN 13 : 9781862391819
Total Pages : 342 pages
Book Rating : 4.3/5 (918 download)
Download or read book Early-Middle Pleistocene Transitions written by Geological Society of London and published by Geological Society of London. This book was released on 2005 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Early-Middle Pleistocene transition (around 1.2 to 0.5 Ma) marks a profound shift in Earth's climate state. Low-amplitude 41 ka climate cycles, dominating the earlier part of the Pleistocene, gave way progressively to a 100 ka rhythm of increased amplitude that characterizes our present glacial-interglacial world. This volume assesses the biotic and physical response to this transition both on land and in the oceans: indeed it examines the very nature of Quaternary climate change. Milankovitch theory, palaeoceanography using isotopes and microfossils, marine organic geochemistry, tephrochronology, the record of loess and soil deposition, terrestrial vegetational change, and the migration and evolution of hominins as well as other large and small mammals, are all considered. These themes combine to explore the very origins of our present biota.
Author : Gerold Wefer
Publisher : Springer Science & Business Media
ISBN 13 : 9783540432012
Total Pages : 506 pages
Book Rating : 4.4/5 (32 download)
Download or read book Climate Development and History of the North Atlantic Realm written by Gerold Wefer and published by Springer Science & Business Media. This book was released on 2002-05-14 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global environment is changing rapidly under the impact of human activities. An important element in this change is related to global climate modification. Experts from the natural and social sciences with a strong interest in history discussed common topics of great interest to society. Can the study of climate and history help in devising strategies for coping with this change? What might be the type of information most useful in this context? What are the pitfalls awaiting the unwary? These and similar questions were discussed during a four-day workshop. The resulting proceedings contain comprehensive papers of broad interest, thematic back-ground papers and reports of study groups. Apart from scientists, the papers should interest graduate students and lecturers.
Author : Kim Jakob
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Late Pliocene to Early Pleistocene Millennial-scale Climate Fluctuations and Sea-level Variability written by Kim Jakob and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fabio Florindo
Publisher : Elsevier
ISBN 13 : 0080931618
Total Pages : 606 pages
Book Rating : 4.0/5 (89 download)
Download or read book Antarctic Climate Evolution written by Fabio Florindo and published by Elsevier. This book was released on 2008-10-10 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antarctic Climate Evolution is the first book dedicated to furthering knowledge on the evolution of the world’s largest ice sheet over its ~34 million year history. This volume provides the latest information on subjects ranging from terrestrial and marine geology to sedimentology and glacier geophysics. An overview of Antarctic climate change, analyzing historical, present-day and future developments Contributions from leading experts and scholars from around the world Informs and updates climate change scientists and experts in related areas of study
Author : Jessica L. Whitaker
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (319 download)
Download or read book Orbital- to Millennial-scale Variability in Gulf of Mexico Sea Surface Temperature and Salinity During the Late Pleistocene written by Jessica L. Whitaker and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial rise in GOM SST at 132.1 ka of 2.9 °C is followed by a cold reversal of 1.5 °C at 130.4 ka for 2 ky and final increase to full interglacial warmth. The reversal in GOM SST is consonant with a pause in sea level rise and reduced NADW, suggesting a reduction in THC may have caused a global two-step deglaciation.
Author : Zlatko Levkov
Publisher : Gantner Publishing
ISBN 13 :
Total Pages : 628 pages
Book Rating : 4.E/5 ( download)
Download or read book Diatoms of Lakes Prespa and Ohrid written by Zlatko Levkov and published by Gantner Publishing. This book was released on 2007 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lakes Preska and Ohrid belong to the old tectonic oligomicticdeep isolated lakes . A total of 450 taxa are presented, 78(17.3%) being described as new taxa (1 genus, 73 speciesand 4 varieties) 9 taxa have new combinations or status.Presence of relict species has been confirmed. Naviculaturris HUSTEDT is reported for the first time outside theKopecz Tertiary deposits in a recent lake.
Author : Gerold Wefer
Publisher : Springer Science & Business Media
ISBN 13 : 3642803539
Total Pages : 815 pages
Book Rating : 4.6/5 (428 download)
Download or read book The South Atlantic written by Gerold Wefer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 815 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents results of recent projects in oceanography and marine geosciences (e.g. WOCE, JGOFS, PAGES, ODP) regarding present and past circulation in the South Atlantic. The objective of the book is to integrate results from both oceanographic and geological studies. As the connecting link between the Antarctic and the North Atlantic, the South Atlantic plays a crucial role with regard to the heat budget of the North Atlantic and to the biogeochemical budget of the global ocean. New results from studies of meridional water mass and heat transports are presented. The central theme of geological investigations is the reconstruction of current and productivity systems in the South Atlantic during the late Quaternary.
Author : Helga Flesche Kleiven
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (481 download)
Download or read book Orbital and Millennial Scale Ice Sheet and Ocean Variability in the North Atlantic During the Pliocene and Pleistocene Climate Transitions written by Helga Flesche Kleiven and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309054494
Total Pages : 645 pages
Book Rating : 4.3/5 (9 download)
Download or read book Natural Climate Variability on Decade-to-Century Time Scales written by National Research Council and published by National Academies Press. This book was released on 1996-08-30 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reflects the current state of scientific knowledge about natural climate variability on decade-to-century time scales. It covers a wide range of relevant subjects, including the characteristics of the atmosphere and ocean environments as well as the methods used to describe and analyze them, such as proxy data and numerical models. They clearly demonstrate the range, persistence, and magnitude of climate variability as represented by many different indicators. Not only do natural climate variations have important socioeconomic effects, but they must be better understood before possible anthropogenic effects (from greenhouse gas emissions, for instance) can be evaluated. A topical essay introduces each of the disciplines represented, providing the nonscientist with a perspective on the field and linking the papers to the larger issues in climate research. In its conclusions section, the book evaluates progress in the different areas and makes recommendations for the direction and conduct of future climate research. This book, while consisting of technical papers, is also accessible to the interested layperson.
Author : Germán Mariano Gasparini
Publisher : Springer
ISBN 13 : 3319400002
Total Pages : 354 pages
Book Rating : 4.3/5 (194 download)
Download or read book Marine Isotope Stage 3 in Southern South America, 60 KA B.P.-30 KA B.P. written by Germán Mariano Gasparini and published by Springer. This book was released on 2016-07-26 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents isotope data reflecting changes in temperature derived from core samples in South America. Marine Isotope Stage (MIS) is examined in detail with respect to Stage 3. With over 20 chapters, this detailed treatise discusses high climatic variability, paleoclimatic events, Dansgaard-Oeschger cycles, continental vertebrates, sea level changes, vegetation and climate changes based on pollen records, and the non-Amazon landscape and fauna from 65 to 20 ka B.P. The book also looks at the earth’s magnetic field and climate change during MIS 3 and MIS 5 and presents a comparison between both stages with respect to marine deposits in Uruguay. With case studies drawn from Brazil, Argentina and Uruguay this book presents research from the some of the worlds experts in this field.
Author : Francoise Vimeux
Publisher : Springer Science & Business Media
ISBN 13 : 904812672X
Total Pages : 424 pages
Book Rating : 4.0/5 (481 download)
Download or read book Past Climate Variability in South America and Surrounding Regions written by Francoise Vimeux and published by Springer Science & Business Media. This book was released on 2009-08-04 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: South America is a unique place where a number of past climate archives are ava- able from tropical to high latitude regions. It thus offers a unique opportunity to explore past climate variability along a latitudinal transect from the Equator to Polar regions and to study climate teleconnections. Most climate records from tropical and subtropical South America for the past 20,000 years have been interpreted as local responses to shift in the mean position and intensity of the InterTropical Conv- gence Zone due to tropical and extratropical forcings or to changes in the South American Summer Monsoon. Further South, the role of the Southern Hemisphere westerly winds on global climate has been highly investigated with both paleodata and coupled climate models. However the regional response over South America during the last 20,000 years is much more variable from place to place than pre- ously thought. The factors that govern the spatial patterns of variability on millennial scale resolution are still to be understood. The question of past natural rates and ranges of climate conditions over South America is therefore of special relevance in this context since today millions of people live under climates where any changes in monsoon rainfall can lead to catastrophic consequences.
Author : E. Jansen
Publisher : Elsevier Science & Technology
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (318 download)
Download or read book Holocene Climate Variability written by E. Jansen and published by Elsevier Science & Technology. This book was released on 2004 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an update of results on the record of past ocean variability since the end of the ice age. This work gives an overview of many aspects of natural climate variability and give both scholars and students a means of keeping up to date on recent developments in the field.
Author : Jürgen Runge
Publisher : CRC Press
ISBN 13 : 1000431150
Total Pages : 412 pages
Book Rating : 4.0/5 (4 download)
Download or read book Quaternary Vegetation Dynamics written by Jürgen Runge and published by CRC Press. This book was released on 2021-11-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book celebrates the relaunch of the African Pollen Database, presents state-of-the-art of modern and ancient pollen data from sub-Saharan Africa, and promotes Open Access science. Pollen grains are powerful tools for the study of past vegetation dynamics because they preserve well within sedimentary deposits and have a huge diversity in ornamentation that allows different taxa to be determined. The reconstruction of past vegetation from the examination of ancient pollen records thus can be used to characterize the nature of past landscapes (e.g. abundance of forests vs. grasslands), provide insights into changes in biodiversity, and gain empirical evidence of vegetation response to climatic change and human activity. In this, the 35th Volume of "Palaeoecology of Africa", we bring together new data and extensive synthetic reviews to provide novel insights into the relationships between human evolution, human activity, climate change and vegetation dynamics during the Quaternary, the last 2.6 million years. Current and ongoing climate and land-use change is exerting pressure on modern vegetation formations and threatening the livelihoods and wellbeing of many peoples in Africa. In this book the focus is on the Quaternary because it is during this geological period that the modern vegetation formations developed into their current configurations against a backdrop of high magnitude global climate change (glacial-interglacial cycles), human evolution, and a growing human land-use footprint. In this book the latest information is presented and collated from around the African continent to parameterize past vegetation states, identify the drivers of vegetation change, and assess the vegetation resilience to change. To achieve this research from two broad themes are covered: (i) the present is the key to the past (i.e. studies which improve our understanding of modern environments so that we can better interpret evidence from the past), and (ii) the past is the key to the future (i.e. studies which unlock information on how and why vegetation changed in the past so one can better anticipate trajectories of future change). This Open Access book will provide a strong foundation for future research exploring past ecological, environmental and climatic change within Africa and the surrounding islands. The book is organized regionally (covering western, eastern, central, and southern Africa) and it contains specialized articles focused on particular topics (such as modern pollen-vegetation relationships and fire as a driver of vegetation change), as well as regional and pan-African syntheses drawing together decades of research to assess key scientific questions (including the role of climate in driving vegetation change and the role of vegetation change in human evolution). These articles will be useful to students and teachers from high school to the highest level of university who are interested in the origins and dynamics of vegetation in Africa. Furthermore, it is also meant to provide societally relevant information that can act as an inspiration for the development of sustainable management practices for the future.
Author :
Publisher : BRILL
ISBN 13 : 9004392084
Total Pages : 407 pages
Book Rating : 4.0/5 (43 download)
Download or read book Environment and Society in the Long Late Antiquity written by and published by BRILL. This book was released on 2019-01-04 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment and Society in the Long Late Antiquity brings together scientific, archaeological and historical evidence on the interplay of social change and environmental phenomena at the end of Antiquity and the dawn of the Middle Ages, ca. 300-800 AD.
