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Record #164648:
- #164648
Main publication details
MARC recordThe elevation history of ice streams and the spatial accumulation pattern along the Siple Coast of West Antarctica inferred from ground-based radar data from three inter-ice-stream ridges / N.A. Nereson, C.F. Raymond.
| Title: | The elevation history of ice streams and the spatial accumulation pattern along the Siple Coast of West Antarctica inferred from ground-based radar data from three inter-ice-stream ridges / N.A. Nereson, C.F. Raymond. |
| Author(s): | Nereson, N. A. Raymond, C. F. |
| Date: | 2001. |
| In: | Journal of Glaciology. (2001.), Vol. 47(157) (2001) |
| Abstract: | Examines past ice-stream activity and large scale pattern of thickness change across Siple Coast by investigating current geometry and stratigraphy of inter-stream ridges. Presents ice- penetrating radar and GPS survey measurements on three inter-stream ridges. Internal layers, with up-warping associated with ice divides, appear in profiles over all ridges. One divide- bump is broad and offset from current divide, suggesting significant divide migration has occurred. Uses kinematic ice-flow model to infer histories of divide positions and spatial accumulation patterns. Attributes northward divide motion to relative thinning of adjacent ice streams rather than changes in accumulation and infers relative elevation histories, for example a 100 m thinning of Ice Stream B relative to Ice Stream C in less than 10³ a. |
| Notes: | Journal of Glaciology. Vol. 47(157) :303-313 (2001). |
| Keywords: | 551.32 -- Glaciology. 551.324.29 -- Land ice, miscellaneous forms: Ice Stream B. 551.324.29 -- Land ice, miscellaneous forms: Ice Stream C. 551.324.5 -- Land ice, flow. 621.396.96 -- Radar. 527.62 -- Navigation, determination of position. 519.673 -- Modelling. E5 -- Glaciology: land ice. (*7) -- Antarctic regions. (*767.5) -- Siple Coast. |
| SPRI record no.: | 164648 |
LDR 02034naa#a2200000#a#4500 001 SPRI-164648 005 20240418200934.0 007 ta 008 240418s2001####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-164648 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aNereson, N. A. 245 14 ‡aThe elevation history of ice streams and the spatial accumulation pattern along the Siple Coast of West Antarctica inferred from ground-based radar data from three inter-ice-stream ridges /‡cN.A. Nereson, C.F. Raymond. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2001. 300 ## ‡ap. 303-313 :‡bill., diags. 500 ## ‡aJournal of Glaciology. Vol. 47(157) :303-313 (2001). 520 3# ‡aExamines past ice-stream activity and large scale pattern of thickness change across Siple Coast by investigating current geometry and stratigraphy of inter-stream ridges. Presents ice- penetrating radar and GPS survey measurements on three inter-stream ridges. Internal layers, with up-warping associated with ice divides, appear in profiles over all ridges. One divide- bump is broad and offset from current divide, suggesting significant divide migration has occurred. Uses kinematic ice-flow model to infer histories of divide positions and spatial accumulation patterns. Attributes northward divide motion to relative thinning of adjacent ice streams rather than changes in accumulation and infers relative elevation histories, for example a 100 m thinning of Ice Stream B relative to Ice Stream C in less than 10³ a. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324.29 -- Land ice, miscellaneous forms: Ice Stream B.‡2udc 650 07 ‡a551.324.29 -- Land ice, miscellaneous forms: Ice Stream C.‡2udc 650 07 ‡a551.324.5 -- Land ice, flow.‡2udc 650 07 ‡a621.396.96 -- Radar.‡2udc 650 07 ‡a527.62 -- Navigation, determination of position.‡2udc 650 07 ‡a519.673 -- Modelling.‡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# ‡aRaymond, C. F. 773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 47(157) (2001) ‡wSPRI-20534 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240418