Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images
Kongsbreen, a tide-water glacier located in Kongsfjorden, is the most active calving glacier in Svalbard. Three SPOT images are used to determine its flow speed and calving rate. The position of fourteen reference points was determined on the coast or mountain sides, and the changes in position of 1...
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Norwegian Polar Institute
1994
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ftjpolarres:oai:journals.openacademia.net:article/1966 2023-05-15T14:24:55+02:00 Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images Lefauconnier, Bernard Hagen, Jon Ove Rudant, Jean Paul 1994-01-06 application/pdf https://polarresearch.net/index.php/polar/article/view/1966 https://doi.org/10.3402/polar.v13i1.6681 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/1966/5215 https://polarresearch.net/index.php/polar/article/view/1966 doi:10.3402/polar.v13i1.6681 Copyright (c) 2018 Polar Research Polar Research; Vol. 13 No. 1 (1994): Special issue: Proceedings of the Second Circumpolar Symposium on Remote Sensing of Arctic Environments; 59-65 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1994 ftjpolarres https://doi.org/10.3402/polar.v13i1.6681 2021-11-11T19:11:42Z Kongsbreen, a tide-water glacier located in Kongsfjorden, is the most active calving glacier in Svalbard. Three SPOT images are used to determine its flow speed and calving rate. The position of fourteen reference points was determined on the coast or mountain sides, and the changes in position of 144 characteristic features on the glacier surface were calculated. The obtained speed profiles arc consistent with the findings from previous works from 1962-64 and 1983-86. When comparing the obtained longitudinal profile to the data from 1962–64. it is found that the flow velocity at a given distance from the front has been nearly constant. The results from the SPOT images analysis are completed by using existing topographic works. The present study shows that SPOT images (panchromatic as well as multichannel), recorded with a periodicity of one year, can be used to determine precisely the annual flow speed and calving rate of active glaciers such as Kongsbreen. Images recorded with a periodicity of two, three or four weeks can allow identical determination on tide-water glaciers during a surging active phase. Article in Journal/Newspaper Arctic glacier Kongsfjord* Kongsfjorden Polar Research Svalbard Polar Research (E-Journal) Kongsbreen ENVELOPE(12.475,12.475,78.984,78.984) Svalbard Polar Research 13 1 59 65 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
Kongsbreen, a tide-water glacier located in Kongsfjorden, is the most active calving glacier in Svalbard. Three SPOT images are used to determine its flow speed and calving rate. The position of fourteen reference points was determined on the coast or mountain sides, and the changes in position of 144 characteristic features on the glacier surface were calculated. The obtained speed profiles arc consistent with the findings from previous works from 1962-64 and 1983-86. When comparing the obtained longitudinal profile to the data from 1962–64. it is found that the flow velocity at a given distance from the front has been nearly constant. The results from the SPOT images analysis are completed by using existing topographic works. The present study shows that SPOT images (panchromatic as well as multichannel), recorded with a periodicity of one year, can be used to determine precisely the annual flow speed and calving rate of active glaciers such as Kongsbreen. Images recorded with a periodicity of two, three or four weeks can allow identical determination on tide-water glaciers during a surging active phase. |
format |
Article in Journal/Newspaper |
author |
Lefauconnier, Bernard Hagen, Jon Ove Rudant, Jean Paul |
spellingShingle |
Lefauconnier, Bernard Hagen, Jon Ove Rudant, Jean Paul Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
author_facet |
Lefauconnier, Bernard Hagen, Jon Ove Rudant, Jean Paul |
author_sort |
Lefauconnier, Bernard |
title |
Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
title_short |
Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
title_full |
Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
title_fullStr |
Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
title_full_unstemmed |
Flow speed and calving rate of Kongsbreen glacier, Svalbard, using SPOT images |
title_sort |
flow speed and calving rate of kongsbreen glacier, svalbard, using spot images |
publisher |
Norwegian Polar Institute |
publishDate |
1994 |
url |
https://polarresearch.net/index.php/polar/article/view/1966 https://doi.org/10.3402/polar.v13i1.6681 |
long_lat |
ENVELOPE(12.475,12.475,78.984,78.984) |
geographic |
Kongsbreen Svalbard |
geographic_facet |
Kongsbreen Svalbard |
genre |
Arctic glacier Kongsfjord* Kongsfjorden Polar Research Svalbard |
genre_facet |
Arctic glacier Kongsfjord* Kongsfjorden Polar Research Svalbard |
op_source |
Polar Research; Vol. 13 No. 1 (1994): Special issue: Proceedings of the Second Circumpolar Symposium on Remote Sensing of Arctic Environments; 59-65 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/1966/5215 https://polarresearch.net/index.php/polar/article/view/1966 doi:10.3402/polar.v13i1.6681 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v13i1.6681 |
container_title |
Polar Research |
container_volume |
13 |
container_issue |
1 |
container_start_page |
59 |
op_container_end_page |
65 |
_version_ |
1766297368556208128 |