Variegated Glacier, Alaska, USA: A Century of Surges
ABSTRACT. A 1995 surge of Variegated Glacier, Alaska, USA, is discussed in the context of its six 20thcenturypredecessors, especially the previous surge in 1982/83 which was studied in detail. The averagetime between surge initiations is 15 years. The 1995 surge was considerably weaker than itsprede...
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ftawi:oai:epic.awi.de:10008 2024-05-12T08:03:57+00:00 Variegated Glacier, Alaska, USA: A Century of Surges Eisen, Olaf Harrison, W. D. Raymond, C. F. Echelmeyer, K. A. Bender, G. Gorda, J. D. M. 2005 application/pdf https://epic.awi.de/id/eprint/10008/ https://epic.awi.de/id/eprint/10008/1/Eis2004d.pdf https://hdl.handle.net/10013/epic.20503 https://hdl.handle.net/10013/epic.20503.d001 unknown https://epic.awi.de/id/eprint/10008/1/Eis2004d.pdf https://hdl.handle.net/10013/epic.20503.d001 Eisen, O. orcid:0000-0002-6380-962X , Harrison, W. D. , Raymond, C. F. , Echelmeyer, K. A. , Bender, G. and Gorda, J. D. M. (2005) Variegated Glacier, Alaska, USA: A Century of Surges , Journal of Glaciology, 51 . doi:10.3189/172756505781829250 <https://doi.org/10.3189/172756505781829250> , hdl:10013/epic.20503 EPIC3Journal of Glaciology, 51, 174 p. Article isiRev 2005 ftawi https://doi.org/10.3189/172756505781829250 2024-04-17T14:05:02Z ABSTRACT. A 1995 surge of Variegated Glacier, Alaska, USA, is discussed in the context of its six 20thcenturypredecessors, especially the previous surge in 1982/83 which was studied in detail. The averagetime between surge initiations is 15 years. The 1995 surge was considerably weaker than itspredecessors, having a single phase or at most a very weak second phase. The 1995 surge confirmsthat there is a seasonal cycle, with surge initiation in winter and termination in the first part of the meltseason, and a correlation between weather and both surge termination date and surge extent. Two daysof record high temperature correlated with the termination of the 1995 surge. The most obvious issue isthe absence of a strong second surge phase (as there was in the 1982/83 surge) culminating in a surgeextent more in line with that of the predecessors. This is considered in the light of a simple criterion forsurge initiation and re-initiation which depends upon the evolving basal shear stress. Article in Journal/Newspaper glacier Journal of Glaciology Alaska Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Journal of Glaciology 51 174 399 406 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
ABSTRACT. A 1995 surge of Variegated Glacier, Alaska, USA, is discussed in the context of its six 20thcenturypredecessors, especially the previous surge in 1982/83 which was studied in detail. The averagetime between surge initiations is 15 years. The 1995 surge was considerably weaker than itspredecessors, having a single phase or at most a very weak second phase. The 1995 surge confirmsthat there is a seasonal cycle, with surge initiation in winter and termination in the first part of the meltseason, and a correlation between weather and both surge termination date and surge extent. Two daysof record high temperature correlated with the termination of the 1995 surge. The most obvious issue isthe absence of a strong second surge phase (as there was in the 1982/83 surge) culminating in a surgeextent more in line with that of the predecessors. This is considered in the light of a simple criterion forsurge initiation and re-initiation which depends upon the evolving basal shear stress. |
format |
Article in Journal/Newspaper |
author |
Eisen, Olaf Harrison, W. D. Raymond, C. F. Echelmeyer, K. A. Bender, G. Gorda, J. D. M. |
spellingShingle |
Eisen, Olaf Harrison, W. D. Raymond, C. F. Echelmeyer, K. A. Bender, G. Gorda, J. D. M. Variegated Glacier, Alaska, USA: A Century of Surges |
author_facet |
Eisen, Olaf Harrison, W. D. Raymond, C. F. Echelmeyer, K. A. Bender, G. Gorda, J. D. M. |
author_sort |
Eisen, Olaf |
title |
Variegated Glacier, Alaska, USA: A Century of Surges |
title_short |
Variegated Glacier, Alaska, USA: A Century of Surges |
title_full |
Variegated Glacier, Alaska, USA: A Century of Surges |
title_fullStr |
Variegated Glacier, Alaska, USA: A Century of Surges |
title_full_unstemmed |
Variegated Glacier, Alaska, USA: A Century of Surges |
title_sort |
variegated glacier, alaska, usa: a century of surges |
publishDate |
2005 |
url |
https://epic.awi.de/id/eprint/10008/ https://epic.awi.de/id/eprint/10008/1/Eis2004d.pdf https://hdl.handle.net/10013/epic.20503 https://hdl.handle.net/10013/epic.20503.d001 |
genre |
glacier Journal of Glaciology Alaska |
genre_facet |
glacier Journal of Glaciology Alaska |
op_source |
EPIC3Journal of Glaciology, 51, 174 p. |
op_relation |
https://epic.awi.de/id/eprint/10008/1/Eis2004d.pdf https://hdl.handle.net/10013/epic.20503.d001 Eisen, O. orcid:0000-0002-6380-962X , Harrison, W. D. , Raymond, C. F. , Echelmeyer, K. A. , Bender, G. and Gorda, J. D. M. (2005) Variegated Glacier, Alaska, USA: A Century of Surges , Journal of Glaciology, 51 . doi:10.3189/172756505781829250 <https://doi.org/10.3189/172756505781829250> , hdl:10013/epic.20503 |
op_doi |
https://doi.org/10.3189/172756505781829250 |
container_title |
Journal of Glaciology |
container_volume |
51 |
container_issue |
174 |
container_start_page |
399 |
op_container_end_page |
406 |
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1798846073776635904 |