Evidence for Late Holocene Sea-level Rise in New England PDF Download
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Author: R. Scott Anderson
Publisher:
ISBN:
Category : Sea level
Languages : en
Pages : 22
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Author: R. Scott Anderson
Publisher:
ISBN:
Category : Sea level
Languages : en
Pages : 22
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Book Description
Author: Thomas K. Weddle
Publisher: Geological Society of America
ISBN: 9780813723518
Category : Science
Languages : en
Pages : 312
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Book Description
The 13 papers in this collection examine the coastal regions, the Gulf of Maine, and the continental shelf off of Atlantic Canada in context with new radiocarbon age analyses, providing a detailed history of climate changes, marine transgression, emergence, and relative sea- level history. Specific topics include deglaciation of the Gulf of Maine, Late Quaternary morphogenesis of a marine-limit delta plain in southwest Maine, morainal banks and the deglaciation of coastal Maine, and glacial dynamics, deglaciation, and marine invasion in southern Quebec. Material originated at a March 1998 symposium held in Maine at the 33rd Annual Meeting of the Northeastern Section of the Geological Society of America. Weddle is affiliated with the Maine Geological Survey. Retelle teaches geology at Bates College. Annotation copyrighted by Book News Inc., Portland, OR.
Author: Cheuk-Yan Tam
Publisher: Open Dissertation Press
ISBN: 9781361038741
Category : Science
Languages : en
Pages : 190
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Book Description
This dissertation, "Late Holocene Sea Level Changes in the East Coast of the Malay-Peninsula" by Cheuk-yan, Tam, 譚卓欣, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: The relative sea level (RSL) history of Terengganu, east coast of the tectonically stable Malay-Peninsula, of the last 2500 years was reconstructed from dated mangrove sediments. Microfossils, particularly pollens, were used for estimating the indicative meaning of each sea-level index point. Pollen assemblages representing the top end of mangrove zone and the low end of swamp zone have an indicative meaning of 0.260.23 m and 0.330.26 m above local mean sea level respectively. The sea-level index points produced have all shown negative tendency of change, as the pollen assemblages have revealed a general environmental change towards a more freshwater condition. The more saline mangrove vegetation was graded into lagoon/riverine Nypa frusticans, or freshwater swamp Myrtaceae or Cyperaceae, depending on the distance of sampling sites from the palaeo-beach ridges. The reconstructed RSL has indicated a RSL fall to below the present mean sea level roughly since the last 1500 years, reaching a lowstand with a minimal value of -1.280.26 m at 920-750 cal. year BP, before a transgression took place between 920-280 cal. year BP, for RSL to return back to the present level. This observation departs from the steady RSL decline to present as predicted by geophysical model. This RSL fall suggests that, in addition to ocean siphoning and continental levering, the late Holocene RSL change in the far-field regions is also influenced by climatic driving forces such as Neo-glacial ice sheet expansion. The effects of these climatic factors have been recorded in some near- and intermediate- field regions. This is the first time that these effects are reported from a far-field region, the Malay-Peninsula. DOI: 10.5353/th_b5576757 Subjects: Sea level - Malay Peninsula Paleoceanography - Holocene
Author:
Publisher: Academic Press
ISBN: 0080878857
Category : Science
Languages : en
Pages : 4604
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Book Description
The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
Author: Harriet Guthrie Beale
Publisher:
ISBN:
Category : Coast changes
Languages : en
Pages : 0
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Book Description
Relative sea-level changes during the past several thousand years were determined at six marshes in three areas of the Puget Basin, Washington, to identify sites of vertical crustal movement, to provide data on regional relative sea-level history, and to collect data that may be used to monitor a proposed acceleration in the rate of eustatic sea-level rise due to global warming. Six salt marshes were cored to obtain radiocarbon ages of basal fossil peat deposits. Uncertainty in relating fossil marsh plants to elevations of former sea-levels reflects both the vertical range in which the plants occur today at the six study sites, and the responses of salt marshes to the variations in tidal range that accompany rising sea-levels. Stratigraphic analysis reveals a rise in relative sealevel at all sites. Radiocarbon ages of peat samples indicate a relative sea-level rise of approximately 2-3 ± 0.5 m between 5000 and 3000 years ago and approximately 1 _+ 0.5 m between 3000 and 1000 years ago. Relative sea-level in the Puget Basin has probably not risen more than about 1 m in the past 1000 years. These data correlate with those of previous studies from southeastern Vancouver Island and the Fraser Lowland. No conclusive evidence of either sudden crustal subsidence or differential tilting across the region was found at the six marshes examined, although slow, steady subsidence of the forearc basin of the Cascadia subduction zone may account for some of the apparent eustatic sea-level rise. Differential crustal displacements of more than 1 m have probably not occurred at Padilla Bay in the past 4500 years, at Quilcene Bay in the past 3000 years, and on San Juan Island in the past 800 years. Should an acceleration in the rate of sea-level rise from global warming be in progress, erosion observed at marshes on San Juan Island may represent an early signalj Coastal areas with the greatest vulnerability to an accelerated sea-level rise, however, are in southern and eastern Puget Sound, where larger tidal ranges would register the greatest increases in amplitude, so that the highest tides would reach even higher elevations than those otherwise expected for the predicted sea-level rise.
Author:
Publisher: Academic Press
ISBN: 0080885225
Category : Science
Languages : en
Pages : 6392
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Book Description
The changing focus and approach of geomorphic research suggests that the time is opportune for a summary of the state of discipline. The number of peer-reviewed papers published in geomorphic journals has grown steadily for more than two decades and, more importantly, the diversity of authors with respect to geographic location and disciplinary background (geography, geology, ecology, civil engineering, computer science, geographic information science, and others) has expanded dramatically. As more good minds are drawn to geomorphology, and the breadth of the peer-reviewed literature grows, an effective summary of contemporary geomorphic knowledge becomes increasingly difficult. The fourteen volumes of this Treatise on Geomorphology will provide an important reference for users from undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic. Information on the historical development of diverse topics within geomorphology provides context for ongoing research; discussion of research strategies, equipment, and field methods, laboratory experiments, and numerical simulations reflect the multiple approaches to understanding Earth’s surfaces; and summaries of outstanding research questions highlight future challenges and suggest productive new avenues for research. Our future ability to adapt to geomorphic changes in the critical zone very much hinges upon how well landform scientists comprehend the dynamics of Earth’s diverse surfaces. This Treatise on Geomorphology provides a useful synthesis of the state of the discipline, as well as highlighting productive research directions, that Educators and students/researchers will find useful. Geomorphology has advanced greatly in the last 10 years to become a very interdisciplinary field. Undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic will find the answers they need in this broad reference work which has been designed and written to accommodate their diverse backgrounds and levels of understanding Editor-in-Chief, Prof. J. F. Shroder of the University of Nebraska at Omaha, is past president of the QG&G section of the Geological Society of America and present Trustee of the GSA Foundation, while being well respected in the geomorphology research community and having won numerous awards in the field. A host of noted international geomorphologists have contributed state-of-the-art chapters to the work. Readers can be guaranteed that every chapter in this extensive work has been critically reviewed for consistency and accuracy by the World expert Volume Editors and by the Editor-in-Chief himself No other reference work exists in the area of Geomorphology that offers the breadth and depth of information contained in this 14-volume masterpiece. From the foundations and history of geomorphology through to geomorphological innovations and computer modelling, and the past and future states of landform science, no "stone" has been left unturned!
Author: Colin V. Murray-Wallace
Publisher: Cambridge University Press
ISBN: 0521820839
Category : Nature
Languages : en
Pages : 503
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Book Description
An important overview of Quaternary climates including detailed Pleistocene and Holocene sea-level changes, for researchers and graduate and advanced undergraduate students.
Author: John A. Church
Publisher: John Wiley & Sons
ISBN: 1444340778
Category : Science
Languages : en
Pages : 458
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Book Description
Understanding Sea-Level Rise and Variability identifies the major impacts of sea-level rise, presents up-to-date assessments of past sea-level change, thoroughly explores all of the factors contributing to sea-level rise, and explores how sea-level extreme events might change. It identifies what is known in each area and what research and observations are required to reduce the uncertainties in our understanding of sea-level rise so that more reliable future projections can be made. A synthesis of findings provides a concise summary of past, present and future sea-level rise and its impacts on society. Key Features: Book includes contributions from a range of international sea level experts Multidisciplinary Four color throughout Describes the limits of our understanding of this crucial issue as well as pointing to directions for future research The book is for everyone interested in sea-level rise and its impacts, including policy makers, research funders, scientists, students, coastal managers and engineers. Additional resources for this book can be found at: http://www.wiley.com/go/church/sealevel.
Author: Intergovernmental Panel on Climate Change (IPCC)
Publisher: Cambridge University Press
ISBN: 9781009157971
Category : Science
Languages : en
Pages : 755
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Book Description
The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.
Author: Charles W. Finkl
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 440
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Book Description
