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Record #125611:
Timing of stagnation of Ice Stream C, west Antarctica, from short-pulse radar studies of buried surface crevasses / Rory Retzlaff, Charles R. Bentley.
Title: | Timing of stagnation of Ice Stream C, west Antarctica, from short-pulse radar studies of buried surface crevasses / Rory Retzlaff, Charles R. Bentley. |
Author(s): | Retzlaff, Rory. Bentley, Charles R. |
Date: | 1993. |
In: | Journal of Glaciology. (1993.), Vol. 39(133) (1993) |
Abstract: | Study carried out during 1988-89 field season to determination stagnation chronology for this ice stream from burial depths of crevasses along shear margin. Five radar profiles were run. Stagnation ages are calculated as 130±25 years for three profiles furthest downstream and slightly less for fourth. Profile furthest upstream show stagnation age of only about 30 years. Suggests that these results indicate wave of stagnation propagating at diminishing speed upstream from mouth of ice stream, and suggests that stagnation process involves drop in water pressure at bed due to conversion from sheet flow to channelized water flow. |
Notes: | Journal of Glaciology. Vol. 39(133) :553-561 (1993). |
Keywords: | 551.32 -- Glaciology. 551.324 -- Land ice. 551.324.29 -- Land ice, miscellaneous forms. 551.324.54 -- Land ice, flow of particular glaciers: Ice Stream C. 551.324.85 -- Crevasses. 53.087.23 -- Remote sensing. 621.396.96 -- Radar. E5 -- Glaciology: land ice. (*7) -- Antarctic regions. (*767.5) -- Siple Coast. |
SPRI record no.: | 125611 |
LDR 01760naa#a2200000#a#4500 001 SPRI-125611 005 20240329064923.0 007 ta 008 240329s1993####xx#ab#|##|###|0||#0|eng#d 035 ## ‡aSPRI-125611 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aRetzlaff, Rory. 245 10 ‡aTiming of stagnation of Ice Stream C, west Antarctica, from short-pulse radar studies of buried surface crevasses /‡cRory Retzlaff, Charles R. Bentley. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1993. 300 ## ‡ap. 553-561 :‡bdiags., table, map. 500 ## ‡aJournal of Glaciology. Vol. 39(133) :553-561 (1993). 520 3# ‡aStudy carried out during 1988-89 field season to determination stagnation chronology for this ice stream from burial depths of crevasses along shear margin. Five radar profiles were run. Stagnation ages are calculated as 130±25 years for three profiles furthest downstream and slightly less for fourth. Profile furthest upstream show stagnation age of only about 30 years. Suggests that these results indicate wave of stagnation propagating at diminishing speed upstream from mouth of ice stream, and suggests that stagnation process involves drop in water pressure at bed due to conversion from sheet flow to channelized water flow. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324 -- Land ice.‡2udc 650 07 ‡a551.324.29 -- Land ice, miscellaneous forms.‡2udc 650 07 ‡a551.324.54 -- Land ice, flow of particular glaciers: Ice Stream C.‡2udc 650 07 ‡a551.324.85 -- Crevasses.‡2udc 650 07 ‡a53.087.23 -- Remote sensing.‡2udc 650 07 ‡a621.396.96 -- Radar.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*767.5) -- Siple Coast.‡2udc 700 1# ‡aBentley, Charles R. 773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 39(133) (1993) ‡wSPRI-20534 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240329