Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract)
The investigation of glacier motion over short time periods for relatively long duration and over large longitudinal extent can yield valuable insight into the dynamics of glacier surging, basal sliding, ice stream development, and calving mechanisms. In this paper, we discuss techniques for monitor...
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1986
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ftcaltechauth:oai:authors.library.caltech.edu:68nx2-71b87 2024-09-15T17:39:53+00:00 Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) Echelmeyer, K. Kamb, B. 1986 https://doi.org/10.3189/S0260305500001555 unknown International Glaciological Society https://doi.org/10.3189/S0260305500001555 oai:authors.library.caltech.edu:68nx2-71b87 eprintid:91136 resolverid:CaltechAUTHORS:20181121-105022890 info:eu-repo/semantics/openAccess Other Annals of Glaciology, 8, 204, (1986) info:eu-repo/semantics/article 1986 ftcaltechauth https://doi.org/10.3189/S0260305500001555 2024-08-06T15:35:03Z The investigation of glacier motion over short time periods for relatively long duration and over large longitudinal extent can yield valuable insight into the dynamics of glacier surging, basal sliding, ice stream development, and calving mechanisms. In this paper, we discuss techniques for monitoring short term horizontal and vertical motion employed on the often highly-fractured surface of Variegated Glacier, Alaska, prior to its recent surge (1980—84) and on the fast-moving outlet glacier — ice stream system of Jakobshavns Glacier, Greenland. The short period measurements described here were made continuously over one to several months, and, in many cases, encompass seasonal and longer term fluctuations as well. The positions of a relatively large number of surface markers (15-35) were followed as functions of time. Application of standard terrestrial surveying techniques and modern microwave and UHF positioning methods to these short period studies are discussed. We then describe methods of reduction and analysis on the resulting large data sets, which may be treated as quasi-stationary time series. Examples of correlation with other glacier variables, such as basal water pressure, seismicity, and stream discharge are given and the propagation of movement events discussed. © 1986 International Glaciological Society. Published - measurement_of_short_period_motion_on_a_fast_moving_glacier_and_analysis_of_data_abstract.pdf Article in Journal/Newspaper Annals of Glaciology glacier glacier Greenland Alaska Caltech Authors (California Institute of Technology) Annals of Glaciology 8 204 204 |
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The investigation of glacier motion over short time periods for relatively long duration and over large longitudinal extent can yield valuable insight into the dynamics of glacier surging, basal sliding, ice stream development, and calving mechanisms. In this paper, we discuss techniques for monitoring short term horizontal and vertical motion employed on the often highly-fractured surface of Variegated Glacier, Alaska, prior to its recent surge (1980—84) and on the fast-moving outlet glacier — ice stream system of Jakobshavns Glacier, Greenland. The short period measurements described here were made continuously over one to several months, and, in many cases, encompass seasonal and longer term fluctuations as well. The positions of a relatively large number of surface markers (15-35) were followed as functions of time. Application of standard terrestrial surveying techniques and modern microwave and UHF positioning methods to these short period studies are discussed. We then describe methods of reduction and analysis on the resulting large data sets, which may be treated as quasi-stationary time series. Examples of correlation with other glacier variables, such as basal water pressure, seismicity, and stream discharge are given and the propagation of movement events discussed. © 1986 International Glaciological Society. Published - measurement_of_short_period_motion_on_a_fast_moving_glacier_and_analysis_of_data_abstract.pdf |
format |
Article in Journal/Newspaper |
author |
Echelmeyer, K. Kamb, B. |
spellingShingle |
Echelmeyer, K. Kamb, B. Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
author_facet |
Echelmeyer, K. Kamb, B. |
author_sort |
Echelmeyer, K. |
title |
Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
title_short |
Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
title_full |
Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
title_fullStr |
Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
title_full_unstemmed |
Measurement of Short Period Motion On A Fast Moving Glacier and Analysis of Data (Abstract) |
title_sort |
measurement of short period motion on a fast moving glacier and analysis of data (abstract) |
publisher |
International Glaciological Society |
publishDate |
1986 |
url |
https://doi.org/10.3189/S0260305500001555 |
genre |
Annals of Glaciology glacier glacier Greenland Alaska |
genre_facet |
Annals of Glaciology glacier glacier Greenland Alaska |
op_source |
Annals of Glaciology, 8, 204, (1986) |
op_relation |
https://doi.org/10.3189/S0260305500001555 oai:authors.library.caltech.edu:68nx2-71b87 eprintid:91136 resolverid:CaltechAUTHORS:20181121-105022890 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.3189/S0260305500001555 |
container_title |
Annals of Glaciology |
container_volume |
8 |
container_start_page |
204 |
op_container_end_page |
204 |
_version_ |
1810483264324894720 |