The 1994 Arctic Ocean Section: The First Major Scientific Crossing of the Arctic Ocean PDF Download

Author:
Publisher: DIANE Publishing
ISBN: 1428913645
Category :
Languages : en
Pages : 129

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Author: Edward Lyn Lewis
Publisher: Springer Science & Business Media
ISBN: 9401141320
Category : Science
Languages : en
Pages : 631

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Following a decision by the Arctic Ocean Sciences Board (AOSB) in July 1996 the then chainnan, Geoffrey Holland, wrote a letter of invitation to a meeting to plan a "Symposium on the Freshwater Balance of the Arctic". The meeting was held in Ottawa on November 12-13 1996 and was attended by representatives of various organisations, including the U.S. National Science Foundation (NSF), as well as individual scientists. Results of this meeting included: • Co-sponsorship with AOSB by the Scientific Committee on Ocean Research (SCOR), the Arctic Climate System Study (ACSYS) and the Global Energy and Water Cycle Experiment (GEWEX). • A decision to apply for funding as a Advanced Research Workshop (ARW) of the North Atlantic Treaty Organisation (NATO) Scientific Affairs Division. • That expenses would be covered in part by funds available through an existing NSF grant to the SCOR Executive offices in Baltimore, MD. • The appointment of myself to be Chairman/Manager for the Symposium. • Provision of a recommended list of Scientific Advisors to assist the Chainnan in selecting key speakers.

Author: Rüdiger Stein
Publisher: Springer Science & Business Media
ISBN: 3642189121
Category : Science
Languages : en
Pages : 394

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The flux, preservation, and accumulation of organic carbon in marine systems are controlled by various mechanisms including primary p- duction of the surface water, supply of terrigenous organic matter from the surrounding continents, biogeochemical processes in the water column and at the seafloor, and sedimentation rate. For the world's oceans, phytoplankton productivity is by far the largest organic carbon 9 source, estimated to be about 30 to 50 Gt (10 tonnes) per year (Berger et al. 1989; Hedges and Keil 1995). By comparison, rivers contribute -1 about 0. 15 to 0. 23 Gt y of particulate organi.

Author: R. Stein
Publisher: Elsevier
ISBN: 0080558852
Category : Science
Languages : en
Pages : 607

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Although it is generally accepted that the Arctic Ocean is a very sensitive and important region for changes in the global climate, this region is the last major physiographic province of the earth whose short-and long-term geological history is much less known in comparison to other ocean regions. This lack of knowledge is mainly caused by the major technological/logistic problems in reaching this harsh, ice-covered region with normal research vessels and in retrieving long and undisturbed sediment cores. During the the last about 20 years, however, several international and multidisciplinary ship expeditions, including the first scientific drilling on Lomonosov Ridge in 2004, a break-through in Arctic research, were carried out into the central Artic and its surrounding shelf seas. Results from these expeditions have greatly advanced our knowledge on Arctic Ocean paleoenvironments. Published syntheses about the knowledge on Arctic Ocean geology, on the other hand, are based on data available prior to 1990. A comprehensive compilation of data on Arctic Ocean paleoenvironment and its short-and long-term variability based on the huge amount of new data including the ACEX drilling data, has not been available yet. With this book, presenting (1) detailed information on glacio-marine sedimentary processes and geological proxies used for paleoenvironmental reconstructions, and (2) detailed geological data on modern environments, Quaternary variability on different time scales as well as the long-term climate history during Mesozoic-Tertiary times, this gap in knowledge will be filled.*Aimed at specialists and graduates *Presents background research, recent developments, and future trends*Written by a leading scholar and industry expert

Author: Jens Bischof
Publisher: Springer Science & Business Media
ISBN: 9781852336486
Category : Nature
Languages : en
Pages : 254

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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.

Author:
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 604

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Author: Bert Rudels
Publisher: Elsevier
ISBN: 0128169311
Category : Science
Languages : en
Pages : 538

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The Physical Oceanography of the Arctic Mediterranean Sea describes the circulation and the processes in the Arctic Mediterranean, how our present knowledge has developed, and presents recent changes caused by a gradually warmer global climate.The Arctic Mediterranean Sea has been intensively studied in recent years, especially during the fourth International Polar Year, 2007–09, and we have become increasingly aware of the changes presently taking place. This book collects and presents newly acquired knowledge and sets it in perspective to previous studies. Authored by a world-renowned leader in the field, this book explores the role of this small but important sea in the global oceanic circulation and climate—a must-read for researchers and students in the fields of oceanography and climate science. - Relates observed features to active processes and provides sufficient background information to understand the theoretical explanations - Presents the Arctic Mediterranean Sea in the context of global ocean circulation and climate - Presents a modern, comprehensive, and coherent treatment of Arctic (and subarctic) physical oceanography

Author: E. Peter Jones
Publisher: Springer Science & Business Media
ISBN: 9780792364399
Category : Medical
Languages : en
Pages : 656

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Two dozen studies from an April-May 1998 conference in Tallinn, Estonia that were carefully commissioned to provide a snapshot of the state of knowledge about the flow of fresh water from Arctic Ocean as of that weekend, one paper even being written afterward to cover for a presentation that was not ready for publication. Meteorologists, hydrologists, oceanographers, and sea-ice specialists explore such aspects as oceanic freshwater fluxes in the climate system, atmospheric components of the Arctic Ocean freshwater balance and their interannual variability, atmospheric components of the hydrologic budget assessed from Rawinsonde data, moisture transport to the drainage basins relating to significant precipitation events and cyclogenesis, the dynamics of river water inflow, a positive-negative estuarine couple, tracer studies, exchanges of freshwater through the shallow straits of the North American Arctic, modeling the variability of exchanges between the Arctic Ocean and the Nordic seas, and the cycle of fresh water freezing and melting. Annotation copyrighted by Book News, Inc., Portland, OR

Author: Willy Weeks
Publisher: University of Alaska Press
ISBN: 160223101X
Category : Science
Languages : en
Pages : 682

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Covering more than seven percent of the earth’s surface, sea ice is crucial to the functioning of the biosphere—and is a key component in our attempts to understand and combat climate change. With On Sea Ice, geophysicist W. F. Weeks delivers a natural history of sea ice, a fully comprehensive and up-to-date account of our knowledge of its creation, change, and function. The volume begins with the earliest recorded observations of sea ice, from 350 BC, but the majority of its information is drawn from the period after 1950, when detailed study of sea ice became widespread. Weeks delves into both micro-level characteristics—internal structure, component properties, and phase relations—and the macro-level nature of sea ice, such as salinity, growth, and decay. He also explains the mechanics of ice pack drift and the recently observed changes in ice extent and thickness. An unparalleled account of a natural phenomenon that will be of increasing importance as the earth’s temperature rises, On Sea Ice will unquestionably be the standard for years to come.

Author: Peter Lemke
Publisher: Springer Science & Business Media
ISBN: 9400720270
Category : Science
Languages : en
Pages : 473

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The Arctic is now experiencing some of the most rapid and severe climate change on earth. Over the next 100 years, climate change is expected to accelerate, contributing to major physical, ecological, social, and economic changes, many of which have already begun. Changes in arctic climate will also affect the rest of the world through increased global warming and rising sea levels. The volume addresses the following major topics: - Research results in observing aspects of the Arctic climate system and its processes across a range of time and space scales - Representation of cryospheric, atmospheric, and oceanic processes in models, including simulation of their interaction with coupled models - Our understanding of the role of the Arctic in the global climate system, its response to large-scale climate variations, and the processes involved.