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Glacier flow measurement and radio-echo sounding at Aurora Peak, Alaska, in 2008

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Title: Glacier flow measurement and radio-echo sounding at Aurora Peak, Alaska, in 2008
Authors: Fukuda, Takehiro Browse this author
Sugiyama, Shin Browse this author →KAKEN DB
Matoba, Sumito Browse this author →KAKEN DB
Shiraiwa, Takayuki Browse this author →KAKEN DB
Issue Date: 2011
Publisher: International Glaciological Society
Journal Title: Annals of Glaciology
Volume: 52
Issue: 58
Start Page: 138
End Page: 142
Abstract: As part of a deep ice-core drilling project, GPS and ice-radar measurements were made in the vicinity of Aurora Peak, Alaska, USA. Surface and bed elevation maps were obtained over an area of 400 m x 700 m, which includes the drilling site. Surface flow velocity was measured at 18 locations in the same area. The results showed that the drilling site was situated on a gentle north-south ridge with saddle-shaped surface geometry. The horizontal ice-flow velocity at the drilling site was <0.5 m a^[-1] and the ice generally flowed eastward and westward along the surface slope. The glacier bed slopes to the east and has more complex topography than the ice surface. The drilling site was situated above a bedrock dip, with an ice thickness of 252 ± 10 m. These data constitute important information for estimating the effect of ice flow to the ice core retrieved from the depth of up to 180.17 m.
Rights: © 2011 International Glaciological Society
Relation: http://www.igsoc.org/
Type: article
URI: http://hdl.handle.net/2115/48169
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 白岩 孝行

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