The Opening of a New Landscape by W. Tad Pfeffer(auth.) PDF

By W. Tad Pfeffer(auth.)

ISBN-10: 0875907296

ISBN-13: 9780875907291

ISBN-10: 111866762X

ISBN-13: 9781118667620

Published through the yank Geophysical Union as a part of the Special courses Series.

This publication, fantastically illustrated with dozens of awesome pictures, not just tells the background of the expeditions to discover the Columbia Glacier, but additionally exhibits how warming over the past century together with inner physics of the glacier act to supply dramatic and unpredictable responses to weather swap. In a huge transformation, not just are we wasting a massive storehouse of unpolluted water, yet we additionally undergo witness to the outlet up of a brand new panorama as increasingly more of the land floor previously coated through ice and snow turns into uncovered to daylight and so welcomes new groups of plant life and fauna.

More than simply a technological know-how tale, this can be a interesting photograph of the way technological know-how and scientists paintings, of the way technological know-how is conducted and advances.

One of the world's top specialists at the Columbia Glacier, W. Tad Pfeffer, scientist, author, and photographer, is uniquely certified to have written this soaking up and dynamic testomony to this ask yourself of nature.

Chapter 1 The Rhythm of Tidewater Glaciers: develop and Retreat (pages 1–12):
Chapter 2 researching the panorama: Early Explorations (pages 13–32):
Chapter three learning the Glacier: Physics Meets Earth Sciences (pages 33–74):
Chapter four The Glacier and Its panorama Above the Fjord: the higher Glacier (pages 75–81):

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Sharp accordingly had the training to look at glaciers quantitatively and build a conceptual model of glacier behavior based in mathematics, and in the years following his expedition with Walter Wood he shifted his attention to glaciers. Using the knowledge he had gained at Harvard (and as an undergraduate at the California Institute of Technology) and techniques then in use by his European contemporaries, Sharp returned to the St. Elias Mountains in the early 1950s, where he made significant advances in quantitative glaciology, including the use of seismic measurements to determine glacier thickness and the analysis of the transformation of snow to ice from heat and mass transfer principles.

During the International Hydrological Decade (19661975), the South Cascade Glacier measurement protocols, in combination with European methods, were adopted as international standards of observation. The South Cascade Glacier project evolved into a long-term program of observations of a transect of glaciers from Gulkana Glacier in the Alaska Range to Maclure Glacier in California’s Sierra Nevada Mountains. At this time glaciers were increasingly becoming recognized as critical components in hydrology, and glacier interactions with climate as a vital part of hydrological changes, both on short-term, local scales and long-term, global scales.

Meier, and A. Post, Calving speed of Alaskan tidewater glaciers, with application to Columbia Glacier. USGS Professional Paper 1258-C, US Government Printing Office, Washington DC, 1982. The Opening of a New Landscape: Columbia Glacier at Mid-Retreat 10/22/2007 11:44:02 AM Figure 25. Main Branch, view to the West, toward the terminus, June 2004. The medial moraines coming from the Main Branch’s tributaries converge on the terminus in the background. The moraines jog sideways in their path down glacier, partly in response to a bedrock step beneath the glacier, and partly due to changes in the speed of flow in the different tributaries.

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