Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery
The study analyzes the changes in dynamics of the Jakobshavn Glacier in summer and winter in 2017 and 2021. Satellite radar observations and the available database were used for this. Moreover, the influence of the time baseline between SAR images on the quality of the results was also investigated....
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Adam Mickiewicz University Poznan
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ftamickiewiczojs:oai:ojs.pressto.amu.edu.pl:article/34061 2023-07-30T04:04:33+02:00 Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. 2022-03-31 application/pdf http://pressto.amu.edu.pl/index.php/qg/article/view/34061 eng eng Adam Mickiewicz University Poznan http://pressto.amu.edu.pl/index.php/qg/article/view/34061/29540 http://pressto.amu.edu.pl/index.php/qg/article/view/34061 Prawa autorskie (c) 2022 Magdalena Łukosz, Ryszard Hejmanowski, Wojciech T. Witkowski Quaestiones Geographicae; Vol. 41 No. 1 (2022); 93-105 Quaestiones Geographicae; Tom 41 Nr 1 (2022); 93-105 2081-6383 0137-477X marine-terminating glacier offset-tracking SAR imagery glacier surface velocity temporal changes in dynamics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Recenzowany artykuł 2022 ftamickiewiczojs 2023-07-17T19:44:13Z The study analyzes the changes in dynamics of the Jakobshavn Glacier in summer and winter in 2017 and 2021. Satellite radar observations and the available database were used for this. Moreover, the influence of the time baseline between SAR images on the quality of the results was also investigated. The velocities computed from Sentinel-1 images and the offset-tracking technique were compared with the MEaSUREs database information. The results showed that Jakobshavn Glacier accelerated in 2021 up to 39.0 m d−1. However, this value may be underestimated due to the resolution of Sentinel-1 data. The results therefore confirm the acceleration of the glacier melting process, which may be a result of the observed climate changes on our planet. Article in Journal/Newspaper Jakobshavn Adam Mickiewicz University in Poznań: PRESSto Quaestiones Geographicae 41 1 93 105 |
institution |
Open Polar |
collection |
Adam Mickiewicz University in Poznań: PRESSto |
op_collection_id |
ftamickiewiczojs |
language |
English |
topic |
marine-terminating glacier offset-tracking SAR imagery glacier surface velocity temporal changes in dynamics |
spellingShingle |
marine-terminating glacier offset-tracking SAR imagery glacier surface velocity temporal changes in dynamics Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
topic_facet |
marine-terminating glacier offset-tracking SAR imagery glacier surface velocity temporal changes in dynamics |
description |
The study analyzes the changes in dynamics of the Jakobshavn Glacier in summer and winter in 2017 and 2021. Satellite radar observations and the available database were used for this. Moreover, the influence of the time baseline between SAR images on the quality of the results was also investigated. The velocities computed from Sentinel-1 images and the offset-tracking technique were compared with the MEaSUREs database information. The results showed that Jakobshavn Glacier accelerated in 2021 up to 39.0 m d−1. However, this value may be underestimated due to the resolution of Sentinel-1 data. The results therefore confirm the acceleration of the glacier melting process, which may be a result of the observed climate changes on our planet. |
format |
Article in Journal/Newspaper |
author |
Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. |
author_facet |
Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. |
author_sort |
Łukosz, Magdalena |
title |
Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
title_short |
Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
title_full |
Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
title_fullStr |
Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
title_full_unstemmed |
Analysis of the velocity changes of the Jakobshavn Glacier based on SAR imagery |
title_sort |
analysis of the velocity changes of the jakobshavn glacier based on sar imagery |
publisher |
Adam Mickiewicz University Poznan |
publishDate |
2022 |
url |
http://pressto.amu.edu.pl/index.php/qg/article/view/34061 |
genre |
Jakobshavn |
genre_facet |
Jakobshavn |
op_source |
Quaestiones Geographicae; Vol. 41 No. 1 (2022); 93-105 Quaestiones Geographicae; Tom 41 Nr 1 (2022); 93-105 2081-6383 0137-477X |
op_relation |
http://pressto.amu.edu.pl/index.php/qg/article/view/34061/29540 http://pressto.amu.edu.pl/index.php/qg/article/view/34061 |
op_rights |
Prawa autorskie (c) 2022 Magdalena Łukosz, Ryszard Hejmanowski, Wojciech T. Witkowski |
container_title |
Quaestiones Geographicae |
container_volume |
41 |
container_issue |
1 |
container_start_page |
93 |
op_container_end_page |
105 |
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1772816075159764992 |