HR: 0830h
AN: C11C-0844    [PDF]
TI: Recent Observations and Structural Analysis of Surge-Type Glaciers in the Glacier Bay Area
AU: * Mayer, H
EM: mayerh@mechanik.tu-darmstadt.de
AF: Institut fuer Mechanik III, Technische Universitaet Darmstadt, Hochschulstrasse 1, Darmstadt, 66289 Germany
AU: * Mayer, H
EM: mayerh@mechanik.tu-darmstadt.de
AF: Institute of Arctic and Alpine Research, University of Colorado, 1560 30th Street, Boulder, CO 80309-0450 United States
AU: Herzfeld, U C
EM: herzfeld@tryfan.colorado.edu
AF: CIRES, University of Colorado, 1540 30th Street, Boulder, CO 80309-0449 United States
AU: Herzfeld, U C
EM: herzfeld@tryfan.colorado.edu
AF: Geomathematik, Universitaet Trier, Behringstrasse, Trier, 54286 Germany
AU: Herzfeld, U C
EM: herzfeld@tryfan.colorado.edu
AF: Institute of Arctic and Alpine Research, University of Colorado, 1560 30th Street, Boulder, CO 80309-0450 United States
AB: The Chugach-St.-Elias Mountains in North America hold the largest non-polar connected glaciated area of the world. Most of its larger glaciers are surge-type glaciers. In the summer of 2003, we collected aerial photographic and GPS data over numerous glaciers in the eastern St. Elias Mountains, including the Glacier Bay area. Observed glaciers include Davidson, Casement, McBride, Riggs, Cushing, Carroll, Rendu, Tsirku, Grand Pacific, Melbern, Ferris, Margerie, Johns Hopkins, Lamplugh, Reid, Burroughs, Morse, Muir and Willard Glaciers, of which Carroll, Rendu, Ferris, Grand Pacific, Johns Hopkins and Margerie Glaciers are surge-type glaciers. Our approach utilizes a quantitative analysis of surface patterns, following the principles of structural geology for the analysis of brittle-deformation patterns (manifested in crevasses) and ductile deformation patterns (visible in folded moraines). First results will be presented.
DE: 1827 Glaciology (1863)
DE: 1863 Snow and ice (1827)
SC: Cryosphere [C]
MN: 2003 Fall Meeting