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Record #112082:

Hydrologic influence in the calving and retreat of Columbia Glacier, Alaska / Mark A. Fahnestock.

Title: Hydrologic influence in the calving and retreat of Columbia Glacier, Alaska / Mark A. Fahnestock.
Author(s): Fahnestock, Mark A.
Date: 1991.
In: Eos : transactions, American Geophysical Union. (1991.), Vol. 72(44, supplement) (1991)
Abstract: AGU Fall Meeting Program and Abstracts, December 9-13, 1991. Describes model which illustrates effect of hydrologically determined sliding velocities in terminal reach of glacier. Model is based on calculation of sliding velocities from conventional sliding law and pressure distribution imposed by discharge through Röthlisberger tunnel. Model produces advance of glacier when low (winter) water discharge is used, and delayed pulse of high velocity (and thinning and calving) when high (summer) discharge is assumed. Discusses thinning and lack of thinning in terminal reach, to which different behaviours are related.
Notes:

Eos : transactions, American Geophysical Union. Vol. 72(44, supplement) :158 (1991).

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.22 -- Glaciers.
551.324.433 -- Land ice, ablation and calving: Columbia Glacier.
551.324.54 -- Land ice, flow of particular glaciers.
551.324.86 -- Glacier streams.
E5 -- Glaciology: land ice.
(*49) -- Alaska.
(*491) -- Alaska, southcentral and southwest.
SPRI record no.: 112082

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245 10 ‡aHydrologic influence in the calving and retreat of Columbia Glacier, Alaska /‡cMark A. Fahnestock.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1991.
300 ## ‡ap. 158.
500 ## ‡aEos : transactions, American Geophysical Union. Vol. 72(44, supplement) :158 (1991).
520 3# ‡aAGU Fall Meeting Program and Abstracts, December 9-13, 1991. Describes model which illustrates effect of hydrologically determined sliding velocities in terminal reach of glacier. Model is based on calculation of sliding velocities from conventional sliding law and pressure distribution imposed by discharge through Röthlisberger tunnel. Model produces advance of glacier when low (winter) water discharge is used, and delayed pulse of high velocity (and thinning and calving) when high (summer) discharge is assumed. Discusses thinning and lack of thinning in terminal reach, to which different behaviours are related.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.22 -- Glaciers.‡2udc
650 07 ‡a551.324.433 -- Land ice, ablation and calving: Columbia Glacier.‡2udc
650 07 ‡a551.324.54 -- Land ice, flow of particular glaciers.‡2udc
650 07 ‡a551.324.86 -- Glacier streams.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*49) -- Alaska.‡2udc
651 #7 ‡a(*491) -- Alaska, southcentral and southwest.‡2udc
773 0# ‡7nnas ‡tEos : transactions, American Geophysical Union. ‡gVol. 72(44, supplement) (1991) ‡wSPRI-1028
917 ## ‡aUnenhanced record from Muscat, imported 2019
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