Tasman Glacier Ice Core Stratigraphy and High Resolution Density Calculations Using X-ray Scanning Techniques and Image Analysis

Tasman Glacier Ice Core Stratigraphy and High Resolution Density Calculations Using X-ray Scanning Techniques and Image Analysis PDF Author: C. Kröger
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 132

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Tasman Glacier Ice Core Stratigraphy and High Resolution Density Calculations Using X-ray Scanning Techniques and Image Analysis

Tasman Glacier Ice Core Stratigraphy and High Resolution Density Calculations Using X-ray Scanning Techniques and Image Analysis PDF Author: C. Kröger
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 132

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Stratigraphic Analysis of a Deep Ice Core from Greenland

Stratigraphic Analysis of a Deep Ice Core from Greenland PDF Author: Chester C. Langway
Publisher: Geological Society of America
ISBN: 0813721253
Category : Science
Languages : en
Pages : 197

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Global Land Ice Measurements from Space

Global Land Ice Measurements from Space PDF Author: Jeffrey S. Kargel
Publisher: Springer
ISBN: 3540798188
Category : Technology & Engineering
Languages : en
Pages : 936

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Book Description
An international team of over 150 experts provide up-to-date satellite imaging and quantitative analysis of the state and dynamics of the glaciers around the world, and they provide an in-depth review of analysis methodologies. Includes an e-published supplement. Global Land Ice Measurements from Space - Satellite Multispectral Imaging of Glaciers (GLIMS book for short) is the leading state-of-the-art technical and interpretive presentation of satellite image data and analysis of the changing state of the world's glaciers. The book is the most definitive, comprehensive product of a global glacier remote sensing consortium, Global Land Ice Measurements from Space (GLIMS, http://www.glims.org). With 33 chapters and a companion e-supplement, the world's foremost experts in satellite image analysis of glaciers analyze the current state and recent and possible future changes of glaciers across the globe and interpret these findings for policy planners. Climate change is with us for some time to come, and its impacts are being felt by the world's population. The GLIMS Book, to be released about the same time as the IPCC's 5th Assessment report on global climate warming, buttresses and adds rich details and authority to the global change community's understanding of climate change impacts on the cryosphere. This will be a definitive and technically complete reference for experts and students examining the responses of glaciers to climate change. World experts demonstrate that glaciers are changing in response to the ongoing climatic upheaval in addition to other factors that pertain to the circumstances of individual glaciers. The global mosaic of glacier changes is documented by quantitative analyses and are placed into a perspective of causative factors. Starting with a Foreword, Preface, and Introduction, the GLIMS book gives the rationale for and history of glacier monitoring and satellite data analysis. It includes a comprehensive set of six "how-to" methodology chapters, twenty-five chapters detailing regional glacier state and dynamical changes, and an in-depth summary and interpretation chapter placing the observed glacier changes into a global context of the coupled atmosphere-land-ocean system. An accompanying e-supplement will include oversize imagery and other other highly visual renderings of scientific data.

The EPICA-DML Deep Ice Core

The EPICA-DML Deep Ice Core PDF Author: Sérgio Henrique Faria
Publisher: Springer
ISBN: 9783662553060
Category : Science
Languages : en
Pages : 305

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Book Description
The line-scan images collected in this book represent the most accurate optical record of Antarctic ice cores ever presented, providing an invaluable resource for glaciologists and climate modellers, as well as a fascinating compilation of ice core images for Antarctica enthusiasts. Global warming and the Earth’s past climate are the two main reasons for extracting deep ice cores from Antarctica. Indeed, dust particles, aerosols and other climatic traces deposited on the snow surface, as well as the air trapped in bubbles by compacted snow, produce chronologically ordered strata, making the ice from Antarctica the most accurate and valuable archive of the Earth’s climate over the last million years. In addition, the layered structure produced by these strata, when revealed by appropriate methods, provides indispensable information concerning the flow and mechanical stability of the Antarctic ice sheet, allowing us to assess the current and future impact of global warming on the melting of polar ice caps with much greater precision.

A Practical Guide to the Study of Glacial Sediments

A Practical Guide to the Study of Glacial Sediments PDF Author: David J. A. Evans
Publisher: Routledge
ISBN: 1444119141
Category : Science
Languages : en
Pages : 297

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Book Description
Sediments are the most valuable form of physical evidence for past Earth surface processes. They have the potential to build up an archive of events and provide a window into the past. Through careful examination of sediments the shifting patterns of surface processes across space and time are revealed, allowing us to reconstruct past environments and environmental change. A Practical Guide to the Study of Glacial Sediments is a guide to the standard techniques employed to read the sedimentary record of former glaciers and ice sheets. It demonstrates that the often complex and fragmentary glacial sedimentary record can, when examined systematically and rationally, provide detailed insights into former environments and climates in places where no other evidence is available. The complementary techniques covered in this book include: facies description, grain size analysis, clast form assessment, clast macrofabric analysis, micromorphology, particle lithology and assessment of engineering properties. They yield consistent and meaningful results in a range of glacial depositional environments throughout the world, from the high Arctic to the Himalayas. A Practical Guide to the Study of Glacial Sediments provides students and researchers with a clear and accessible guide to recording and interpreting glacial successions wherever the location.

Stratigraphic Analysis of a Deep Ice Core from Greenland

Stratigraphic Analysis of a Deep Ice Core from Greenland PDF Author: Chester C. Langway
Publisher:
ISBN:
Category : Clay minerals
Languages : en
Pages :

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Taylor Glacier as an Archive of Ancient Ice for Large-volume Samples

Taylor Glacier as an Archive of Ancient Ice for Large-volume Samples PDF Author: Daniel Baggenstos
Publisher:
ISBN: 9781321661910
Category :
Languages : en
Pages : 134

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Book Description
The aim of this dissertation is twofold, to develop a new ice sheet margin site on Taylor Glacier as a paleo-climate archive, and to resolve the controversy of the Taylor Dome chronology. The motivation for the former is that ice from deep ice core drilling projects is a precious commodity because only a finite amount of it is available from each core. This precludes measurements of trace constituents that need large sample sizes. Ice margin sites can provide an ice archive that complements the deep drilling efforts. We present a suite of gas measurements from Taylor Glacier, Antarctica, that allow us to date the outcropping ice. We find that ice from the last glacial cycle is exposed at the glacier surface over tens of kilometers. Every climatic interval of the last 125,000 years has been identified, from the penultimate interglacial to the Holocene, laying the foundation for future work. The age of the ice generally increases as one moves down-glacier, but at most locations the across flow age gradient is at least a magnitude larger. We have developed a high resolution age model for an across flow transect covering 50,000 to 8,000 years ago, that offers the chance to study the Last Glacial Maximum and the deglaciation in detail. We also describe and interpret large scale folding observed in the stratigraphy that can provide information on the deformation history. The second focus of this dissertation is to revisit the Taylor Dome chronology, which is at the center of a controversial finding suggesting a direct link of Taylor Dome climate and changes happening in the North Atlantic during the deglaciation. We use measurements of calcium and H2O isotopes in a true horizontal ice core from Taylor Glacier to show unambiguously that the Taylor Dome area temperature history is synchronous with the warming observed in other Antarctic ice cores, and not with North Atlantic records. We also find that the accumulation rate during the Last Glacial Maximum was extremely low, the overestimation of which led to the error in the original time scale. There is evidence from noble gas isotopic composition that a substantial convective zone formed during the same period. We present a new Taylor Dome time scale to replace the now obsolete original Taylor Dome chronology.

Quaternary Dating Methods

Quaternary Dating Methods PDF Author: Mike Walker
Publisher: John Wiley & Sons
ISBN: 1118700090
Category : Science
Languages : en
Pages : 311

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Book Description
This introductory textbook introduces the basics of dating, the range of techniques available and the strengths and limitations of each of the principal methods. Coverage includes: the concept of time in Quaternary Science and related fields the history of dating from lithostratigraphy and biostratigraphy the development and application of radiometric methods different methods in dating: radiometric dating, incremental dating, relative dating and age equivalence Presented in a clear and straightforward manner with the minimum of technical detail, this text is a great introduction for both students and practitioners in the Earth, Environmental and Archaeological Sciences. Praise from the reviews: "This book is a must for any Quaternary scientist." SOUTH AFRICAN GEOGRAPHICAL JOURNAL, September 2006 “...very well organized, clearly and straightforwardly written and provides a good overview on the wide field of Quaternary dating methods...” JOURNAL OF QUATERNARY SCIENCE, January 2007

Glacial Stratigraphy, Engineering Geology and Earth Construction

Glacial Stratigraphy, Engineering Geology and Earth Construction PDF Author: L. K. Kauranne
Publisher:
ISBN:
Category : Earth construction
Languages : en
Pages : 180

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Glacial Till

Glacial Till PDF Author: Robert Ferguson Legget
Publisher:
ISBN:
Category : Drift
Languages : en
Pages : 432

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