Elevation and volume changes on the Harding Icefield, Alaska
Abstract Airborne surface elevation profiles of the Harding Ice field, south-central Alaska, were made in 1991 and 1996. Thirteen glaciers were profiled, along with the tipper region of the icefield. The profiles were compared to U.S. Geological Survey topographie maps made in the 1950s, to obtain e...
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Cambridge University Press (CUP)
1998
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Online Access: | http://dx.doi.org/10.1017/s0022143000002082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002082 |
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crcambridgeupr:10.1017/s0022143000002082 2024-03-03T08:44:34+00:00 Elevation and volume changes on the Harding Icefield, Alaska Adalgeirsdóttir, G. Echelmeyer, K. A. Harrison, W. D. 1998 http://dx.doi.org/10.1017/s0022143000002082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002082 en eng Cambridge University Press (CUP) Journal of Glaciology volume 44, issue 148, page 570-582 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1998 crcambridgeupr https://doi.org/10.1017/s0022143000002082 2024-02-08T08:39:08Z Abstract Airborne surface elevation profiles of the Harding Ice field, south-central Alaska, were made in 1991 and 1996. Thirteen glaciers were profiled, along with the tipper region of the icefield. The profiles were compared to U.S. Geological Survey topographie maps made in the 1950s, to obtain elevation and volume changes. Comparison of the changes for the different glaciers shows no significant correlation between volume change and the type of glacier or characteristics such as location, aspect, size, slope or terminus changes. Estimated total volume change tor this ~43 year period is about -34 km 3 , which corresponds to an area-average elevation change of-21 m. The estimated error in this elevation change of 5 m is mainly due to errors in the maps at higher elevations. Our measurements provide an accurate baseline against which future determinations of volume change can be made. Article in Journal/Newspaper glacier glaciers Journal of Glaciology Alaska Cambridge University Press Harding ENVELOPE(75.033,75.033,-72.900,-72.900) Journal of Glaciology 44 148 570 582 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Adalgeirsdóttir, G. Echelmeyer, K. A. Harrison, W. D. Elevation and volume changes on the Harding Icefield, Alaska |
topic_facet |
Earth-Surface Processes |
description |
Abstract Airborne surface elevation profiles of the Harding Ice field, south-central Alaska, were made in 1991 and 1996. Thirteen glaciers were profiled, along with the tipper region of the icefield. The profiles were compared to U.S. Geological Survey topographie maps made in the 1950s, to obtain elevation and volume changes. Comparison of the changes for the different glaciers shows no significant correlation between volume change and the type of glacier or characteristics such as location, aspect, size, slope or terminus changes. Estimated total volume change tor this ~43 year period is about -34 km 3 , which corresponds to an area-average elevation change of-21 m. The estimated error in this elevation change of 5 m is mainly due to errors in the maps at higher elevations. Our measurements provide an accurate baseline against which future determinations of volume change can be made. |
format |
Article in Journal/Newspaper |
author |
Adalgeirsdóttir, G. Echelmeyer, K. A. Harrison, W. D. |
author_facet |
Adalgeirsdóttir, G. Echelmeyer, K. A. Harrison, W. D. |
author_sort |
Adalgeirsdóttir, G. |
title |
Elevation and volume changes on the Harding Icefield, Alaska |
title_short |
Elevation and volume changes on the Harding Icefield, Alaska |
title_full |
Elevation and volume changes on the Harding Icefield, Alaska |
title_fullStr |
Elevation and volume changes on the Harding Icefield, Alaska |
title_full_unstemmed |
Elevation and volume changes on the Harding Icefield, Alaska |
title_sort |
elevation and volume changes on the harding icefield, alaska |
publisher |
Cambridge University Press (CUP) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1017/s0022143000002082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002082 |
long_lat |
ENVELOPE(75.033,75.033,-72.900,-72.900) |
geographic |
Harding |
geographic_facet |
Harding |
genre |
glacier glaciers Journal of Glaciology Alaska |
genre_facet |
glacier glaciers Journal of Glaciology Alaska |
op_source |
Journal of Glaciology volume 44, issue 148, page 570-582 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000002082 |
container_title |
Journal of Glaciology |
container_volume |
44 |
container_issue |
148 |
container_start_page |
570 |
op_container_end_page |
582 |
_version_ |
1792500070018449408 |