Zobrazeno 1 - 6
of 6
pro vyhledávání: '"D. H. Elsberg"'
Autor:
Mark A. Zumberge, Edwin D. Waddington, John L. Morack, Erin C. Pettit, D. H. Elsberg, Throstur Thorsteinsson, William D. Harrison
Publikováno v:
Journal of Glaciology. 57:39-52
We used observations and modeling of Siple Dome, West Antarctica, a ridge ice divide, to infer the importance of linear deformation mechanisms in ice-sheet flow. We determined the crossover stress (a threshold value of the effective deviatoric stress
Autor:
Mark A. Zumberge, Erin C. Pettit, John L. Morack, D. H. Elsberg, Eric Husmann, William D. Harrison, Edward D. Waddington
Publikováno v:
Journal of Glaciology. 50:511-521
As part of a project to investigate the flow of ice at low effective stress, two independent strain-gauge systems were used to measure vertical strain rate as a function of depth and time at Siple Dome, Antarctica. The measurements were made from Jan
Publikováno v:
Annals of Glaciology. 36:45-50
Hubbard Glacier is the largest tidewater glacier in North America. In contrast to most glaciers in Alaska and northwestern Canada, Hubbard Glacier thickened and advanced during the 20th century. This a typical behavior is an important example of how
Autor:
Edwin D. Waddington, Mark A. Zumberge, D. H. Elsberg, William D. Harrison, John L. Morack, Eric Husmann, Erin C. Pettit
Publikováno v:
Journal of Glaciology. 48:217-225
As part of a larger program to measure and model vertical strain around Siple Dome on the West Antarctic ice sheet, we developed a new sensor to accurately and stably record displacements. The sensors consist of optical fibers, encased in thin-wall s
Publikováno v:
Journal of Glaciology. 47:649-658
When a mass balance is computed using an outdated map, that computation does not reveal the actual mass change. But older maps often must be used for practical reasons. We present a method by which, with a few additional measurements each year, a mas
Publikováno v:
Journal of Glaciology. 47:659-664
Glacier response to climate can be characterized by a single time-scale when the glacier changes sufficiently slowly. Then the derivative of volume with respect to area defines a thickness scale similar to that of Jóhannesson and others, and the tim