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Geodetic and Seismic Observations of Ice-Stream Dynamics (Paperback) Loot Price: R1,525 Discovery Miles 15 250
Geodetic and Seismic Observations of Ice-Stream Dynamics (Paperback): Jeremy Paul Winberry
Geodetic and Seismic Observations of Ice-Stream Dynamics (Paperback): Jeremy Paul Winberry

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Geodetic and Seismic Observations of Ice-Stream Dynamics (Paperback)

Jeremy Paul Winberry

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Loot Price R1,525 Discovery Miles 15 250

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The mass balance of large ice sheets is controlled by the dynamics of fast moving ice streams and outlet glaciers. In this work, I use geodetic and passive seismic observations to constrain rates of change in the flow of ice streams and illuminate fundamental processes that govern their behavior. An investigation of the flow field near the onset of Bindschadler Ice Streams reveals that the ice stream onset location is presently stable. Using passive seismic observations to monitor subglacial processes on MacAyeal Ice Stream, a set of harmonic glacial tremors were observed. The tremors are characterized by the sustained arrival 3 Hz energy for over 10 minutes, during which the source location migrates. The duration, monochromatic nature, and movement indicate the source mechanism is transient flow in the subglacial water system. A detailed investigation of the stick-slip motion on Whillans Ice Stream is undertaken using detailed GPS observations of the surface velocity. These observations reveal that most aspects of stick-slip motion are modulated by the tides of the Ross Sea. The tides affect ice stream by introducing rates in which stress is accumulated during the time periods between slip events.

General

Imprint: Proquest, Umi Dissertation Publishing
Country of origin: United States
Release date: September 2011
First published: September 2011
Authors: Jeremy Paul Winberry
Dimensions: 254 x 203 x 7mm (L x W x T)
Format: Paperback - Trade
Pages: 110
ISBN-13: 978-1-243-56638-6
Barcode: 9781243566386
Categories: Promotions
Books > Science & Mathematics > Science: general issues
Books > Science & Mathematics > Science: general issues > General
LSN: 1-243-56638-8

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