Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022)
Dynamic climate changes are particularly apparent in polar regions. Glaciers are retreatng towards the land at a very fast pace. This study demonstrates the application of the feature tracking method in the analysis of ice flow velocity in the region of the Hornsund fiord, southern Spitsbergen, in t...
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ftdoajarticles:oai:doaj.org/article:89f7574454a2465aa6bf07a9e30691e0 2023-05-15T16:34:55+02:00 Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) Wojciech Milczarek Anna Kopeć Tadeusz Głowacki 2022-10-01T00:00:00Z https://doi.org/10.3390/rs14215429 https://doaj.org/article/89f7574454a2465aa6bf07a9e30691e0 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/21/5429 https://doaj.org/toc/2072-4292 doi:10.3390/rs14215429 2072-4292 https://doaj.org/article/89f7574454a2465aa6bf07a9e30691e0 Remote Sensing, Vol 14, Iss 5429, p 5429 (2022) feature tracking satellite imagery glacier velocity Hornsund Spitsbergen climate change Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14215429 2022-12-30T23:16:25Z Dynamic climate changes are particularly apparent in polar regions. Glaciers are retreatng towards the land at a very fast pace. This study demonstrates the application of the feature tracking method in the analysis of ice flow velocity in the region of the Hornsund fiord, southern Spitsbergen, in the years 2018–2022. The calculations were based on the Geogrid and autoRIFT environments and on the Sentinel 1 images. The study also employed external data, such as a numerical terrain model and reference velocity values. The input data, e.g., the chip size and the search limit, were prepared accounting for the specific character of the investigated area. The velocities were calculated for nine biggest glaciers which terminated in the fiord. The accuracy of the results was identified by calculating the median absolute deviation (MAD) of the obtained displacement velocity values from the reference value for areas identified as stable. The study also attempted a causal analysis of the influence of weather factors on the dynamics of ice mass displacement. A systematic year-to-year decrease of the velocity was observed for the entire fiord. In the case of several glaciers, changes related to the ablation season (summer) are also clearly visible. The research results are promising and fill a research gap related to the absence of permanent monitoring and analysis of the dynamics of ice flow in polar regions. It is the first complex and precise study of glacier surface velocity changes, performed on the basis of satellite radar images for the entire Hornsund fiord. Article in Journal/Newspaper Hornsund Tidewater Spitsbergen Directory of Open Access Journals: DOAJ Articles Hornsund ENVELOPE(15.865,15.865,76.979,76.979) The Sentinel ENVELOPE(73.317,73.317,-52.983,-52.983) Remote Sensing 14 21 5429 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
feature tracking satellite imagery glacier velocity Hornsund Spitsbergen climate change Science Q |
spellingShingle |
feature tracking satellite imagery glacier velocity Hornsund Spitsbergen climate change Science Q Wojciech Milczarek Anna Kopeć Tadeusz Głowacki Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
topic_facet |
feature tracking satellite imagery glacier velocity Hornsund Spitsbergen climate change Science Q |
description |
Dynamic climate changes are particularly apparent in polar regions. Glaciers are retreatng towards the land at a very fast pace. This study demonstrates the application of the feature tracking method in the analysis of ice flow velocity in the region of the Hornsund fiord, southern Spitsbergen, in the years 2018–2022. The calculations were based on the Geogrid and autoRIFT environments and on the Sentinel 1 images. The study also employed external data, such as a numerical terrain model and reference velocity values. The input data, e.g., the chip size and the search limit, were prepared accounting for the specific character of the investigated area. The velocities were calculated for nine biggest glaciers which terminated in the fiord. The accuracy of the results was identified by calculating the median absolute deviation (MAD) of the obtained displacement velocity values from the reference value for areas identified as stable. The study also attempted a causal analysis of the influence of weather factors on the dynamics of ice mass displacement. A systematic year-to-year decrease of the velocity was observed for the entire fiord. In the case of several glaciers, changes related to the ablation season (summer) are also clearly visible. The research results are promising and fill a research gap related to the absence of permanent monitoring and analysis of the dynamics of ice flow in polar regions. It is the first complex and precise study of glacier surface velocity changes, performed on the basis of satellite radar images for the entire Hornsund fiord. |
format |
Article in Journal/Newspaper |
author |
Wojciech Milczarek Anna Kopeć Tadeusz Głowacki |
author_facet |
Wojciech Milczarek Anna Kopeć Tadeusz Głowacki |
author_sort |
Wojciech Milczarek |
title |
Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
title_short |
Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
title_full |
Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
title_fullStr |
Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
title_full_unstemmed |
Mapping Ice Flow Velocity of Tidewater Glaciers in Hornsund Fiord Area with the Use of Autonomous Repeat Image Feature Tracking (2018–2022) |
title_sort |
mapping ice flow velocity of tidewater glaciers in hornsund fiord area with the use of autonomous repeat image feature tracking (2018–2022) |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14215429 https://doaj.org/article/89f7574454a2465aa6bf07a9e30691e0 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(73.317,73.317,-52.983,-52.983) |
geographic |
Hornsund The Sentinel |
geographic_facet |
Hornsund The Sentinel |
genre |
Hornsund Tidewater Spitsbergen |
genre_facet |
Hornsund Tidewater Spitsbergen |
op_source |
Remote Sensing, Vol 14, Iss 5429, p 5429 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/21/5429 https://doaj.org/toc/2072-4292 doi:10.3390/rs14215429 2072-4292 https://doaj.org/article/89f7574454a2465aa6bf07a9e30691e0 |
op_doi |
https://doi.org/10.3390/rs14215429 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
21 |
container_start_page |
5429 |
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1766025034340499456 |