Analysis of the Velocity Changes of the Jakobshavn Glacier Based on SAR Imagery
Abstract 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 inve...
Published in: | Quaestiones Geographicae |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Walter de Gruyter GmbH
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.2478/quageo-2022-0007 https://www.sciendo.com/pdf/10.2478/quageo-2022-0007 |
id |
crdegruyter:10.2478/quageo-2022-0007 |
---|---|
record_format |
openpolar |
spelling |
crdegruyter:10.2478/quageo-2022-0007 2023-05-15T16:56:51+02:00 Analysis of the Velocity Changes of the Jakobshavn Glacier Based on SAR Imagery Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. 2022 http://dx.doi.org/10.2478/quageo-2022-0007 https://www.sciendo.com/pdf/10.2478/quageo-2022-0007 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by/4.0 CC-BY Quaestiones Geographicae volume 41, issue 1, page 93-105 ISSN 2081-6383 General Earth and Planetary Sciences journal-article 2022 crdegruyter https://doi.org/10.2478/quageo-2022-0007 2022-06-16T13:40:29Z Abstract 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 De Gruyter (via Crossref) Quaestiones Geographicae 0 0 |
institution |
Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Łukosz, Magdalena Hejmanowski, Ryszard Witkowski, Wojciech T. Analysis of the Velocity Changes of the Jakobshavn Glacier Based on SAR Imagery |
topic_facet |
General Earth and Planetary Sciences |
description |
Abstract 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 |
Walter de Gruyter GmbH |
publishDate |
2022 |
url |
http://dx.doi.org/10.2478/quageo-2022-0007 https://www.sciendo.com/pdf/10.2478/quageo-2022-0007 |
genre |
Jakobshavn |
genre_facet |
Jakobshavn |
op_source |
Quaestiones Geographicae volume 41, issue 1, page 93-105 ISSN 2081-6383 |
op_rights |
http://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.2478/quageo-2022-0007 |
container_title |
Quaestiones Geographicae |
container_volume |
0 |
container_issue |
0 |
_version_ |
1766048029045948416 |