Physical Characteristics of the Antarctic Ice Sheet PDF Download
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Author: Craig R. Bentley
Publisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 10
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Book Description
Author: Craig R. Bentley
Publisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 10
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Book Description
Author: William Francis Budd
Publisher:
ISBN:
Category : Glaciers
Languages : en
Pages : 178
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Book Description
Author: W. F. Budd
Publisher:
ISBN:
Category :
Languages : en
Pages : 178
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Book Description
Author: William Francis Budd
Publisher:
ISBN: 9780642945983
Category : Glaciers
Languages : en
Pages : 178
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Book Description
Author: Roger G. Barry
Publisher: Cambridge University Press
ISBN: 1108423167
Category : History
Languages : en
Pages : 445
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Book Description
Surveys atmospheric, oceanic and cryospheric processes, present and past conditions, and changes in polar environments.
Author: W. F. Budd
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
Author: Fabio Florindo
Publisher: Elsevier
ISBN: 0080931618
Category : Science
Languages : en
Pages : 606
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Book Description
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: Johannes Oerlemans
Publisher: Springer Science & Business Media
ISBN: 9400963254
Category : Science
Languages : en
Pages : 220
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Book Description
Climate modelling is a field in rapid development, and the fltudy of cryospheric processes has become an important part of it. On smaller time scales, the effect of snow cover and sea ice on the atmospheric circulation is of concern for long-range weather forecasting. Thinking in decades or centuries, the effect of a C02 climatic warming on the present-day ice sheets, and the resulting changes in global sea level, has drawn a lot of attention. In particular, the dynamics of marine ice sheets (ice sheets on a bed that would be below sea level after removal of ice and full isostatic rebound) is a subject of continuous research. This interest stems from the fact that the West Antarctic Ice Sheet is a marine ice sheet which, according to some workers, may be close to a complete collapse. The Pleistocene ice ages, or glacial cycles, are best characterized by total ice volume on earth, indicating that on 4 5 large time scales (10 to 10 yr) ice sheets are a dominant component of the climate system. The enormous amount of paleoclimatic information obtained from deep-sea sediments in the last few decades has led to a complete revival of iriterest in the physical aspects of the Pleistocene climatic evolution.
Author: Anthony J. Gow
Publisher:
ISBN:
Category : Bubbles
Languages : en
Pages : 28
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Book Description
Cores obtained to the bottom of the Antarctic Ice Sheet at Byrd Station were used to analyze the physical properties of air bubbles trapped in the ice. Parameters measured were the sizes, shapes, abundances, spatial distributions, gas volumes and pressure of bubbles, and their variations with depth in the ice sheet. Bubbles occur abundantly in the top 800 m of ice but then gradually disappear until they can no longer be detected optically below 1100 m. This disappearance is not accompanied by any significant loss of air from the ice and all available evidence indicates that the air actually diffuses into the ice in response to increasing overburden pressure. Bubble pressure measurements show that (1) bubbles with pressures exceeding about 16 bars begin to relax back to this value soon after in situ pressures are relieved by drilling, (2) further slow decompression occurs with time, and (3) the rate of decompression is controlled to some extent by the intrinsic structural properties of the ice and its thermal and deformational history. Only small variations were observed in the entrapped air content of the ice cores; they probably reflect variations in the temperature and/or pressure of the air at the time of its entrapment, but the data are not sufficient to draw any firm conclusions regarding past variations in ice sheet thickness. Only ice from the bottom 4.83 m was found to lack any detectable trace of air.
