The Surface Velocity of The Yakataga Glacier Alaska
Abstract The Yakataga Glacier occupies a steep-walled valley in the Robinson Mountains on the north coast of the Gulf of Alaska. The main trunk of the glacier descends from 1130 to 150 m. in a distance of 21 km. A rock fall at the head of the glacier formed a moraine of distinctive shape which advan...
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Language: | English |
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Cambridge University Press (CUP)
1957
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Online Access: | http://dx.doi.org/10.1017/s0022143000024448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024448 |
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crcambridgeupr:10.1017/s0022143000024448 2024-03-03T08:44:33+00:00 The Surface Velocity of The Yakataga Glacier Alaska Miller, Don J. 1957 http://dx.doi.org/10.1017/s0022143000024448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024448 en eng Cambridge University Press (CUP) Journal of Glaciology volume 3, issue 22, page 125-130 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1957 crcambridgeupr https://doi.org/10.1017/s0022143000024448 2024-02-08T08:37:11Z Abstract The Yakataga Glacier occupies a steep-walled valley in the Robinson Mountains on the north coast of the Gulf of Alaska. The main trunk of the glacier descends from 1130 to 150 m. in a distance of 21 km. A rock fall at the head of the glacier formed a moraine of distinctive shape which advanced at an average rate of 114 m./yr. from 1938 to 1954. The surface velocity of the glacier at fifteen stations below the firn line was calculated from the displacement of the rock-fall moraine and other less conspicuous features that are shown in two sets of vertical aerial photographs, taken in 1948 and 1954. For this time interval the average surface velocity along the medial line of the glacier ranged from a maximum of about 90 m./yr. at a station 14 km. above the terminus to zero at a station 2.3 km. above the terminus. The technique of photogrammetric measurement of surface velocity by using natural features on the surface of a glacier has wide application in Alaska, where many glaciers have been rephotographed from the air after intervals of a few years to as many as thirty years. Article in Journal/Newspaper glacier glaciers Journal of Glaciology Alaska Cambridge University Press Gulf of Alaska Journal of Glaciology 3 22 125 130 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Miller, Don J. The Surface Velocity of The Yakataga Glacier Alaska |
topic_facet |
Earth-Surface Processes |
description |
Abstract The Yakataga Glacier occupies a steep-walled valley in the Robinson Mountains on the north coast of the Gulf of Alaska. The main trunk of the glacier descends from 1130 to 150 m. in a distance of 21 km. A rock fall at the head of the glacier formed a moraine of distinctive shape which advanced at an average rate of 114 m./yr. from 1938 to 1954. The surface velocity of the glacier at fifteen stations below the firn line was calculated from the displacement of the rock-fall moraine and other less conspicuous features that are shown in two sets of vertical aerial photographs, taken in 1948 and 1954. For this time interval the average surface velocity along the medial line of the glacier ranged from a maximum of about 90 m./yr. at a station 14 km. above the terminus to zero at a station 2.3 km. above the terminus. The technique of photogrammetric measurement of surface velocity by using natural features on the surface of a glacier has wide application in Alaska, where many glaciers have been rephotographed from the air after intervals of a few years to as many as thirty years. |
format |
Article in Journal/Newspaper |
author |
Miller, Don J. |
author_facet |
Miller, Don J. |
author_sort |
Miller, Don J. |
title |
The Surface Velocity of The Yakataga Glacier Alaska |
title_short |
The Surface Velocity of The Yakataga Glacier Alaska |
title_full |
The Surface Velocity of The Yakataga Glacier Alaska |
title_fullStr |
The Surface Velocity of The Yakataga Glacier Alaska |
title_full_unstemmed |
The Surface Velocity of The Yakataga Glacier Alaska |
title_sort |
surface velocity of the yakataga glacier alaska |
publisher |
Cambridge University Press (CUP) |
publishDate |
1957 |
url |
http://dx.doi.org/10.1017/s0022143000024448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024448 |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
glacier glaciers Journal of Glaciology Alaska |
genre_facet |
glacier glaciers Journal of Glaciology Alaska |
op_source |
Journal of Glaciology volume 3, issue 22, page 125-130 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000024448 |
container_title |
Journal of Glaciology |
container_volume |
3 |
container_issue |
22 |
container_start_page |
125 |
op_container_end_page |
130 |
_version_ |
1792500043140300800 |