Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data
In recent decades, acceleration of coastal erosion has been observed at many key sites of the Arctic region. Coastal dynamics of both erosional and accretional stretches at Kharasavey, Kara Sea, was studied using multi-temporal remote sensing data covering the period from 1964 to 2022. Cross-proxy a...
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2023
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Online Access: | https://doi.org/10.3390/rs15174199 https://doaj.org/article/e9540a6faa1041f7a9a5a61e84a3dfb8 |
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ftdoajarticles:oai:doaj.org/article:e9540a6faa1041f7a9a5a61e84a3dfb8 2023-10-09T21:48:49+02:00 Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data Georgii Kazhukalo Anna Novikova Natalya Shabanova Mikhail Drugov Stanislav Myslenkov Pavel Shabanov Nataliya Belova Stanislav Ogorodov 2023-08-01T00:00:00Z https://doi.org/10.3390/rs15174199 https://doaj.org/article/e9540a6faa1041f7a9a5a61e84a3dfb8 EN eng MDPI AG https://www.mdpi.com/2072-4292/15/17/4199 https://doaj.org/toc/2072-4292 doi:10.3390/rs15174199 2072-4292 https://doaj.org/article/e9540a6faa1041f7a9a5a61e84a3dfb8 Remote Sensing, Vol 15, Iss 4199, p 4199 (2023) coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change Science Q article 2023 ftdoajarticles https://doi.org/10.3390/rs15174199 2023-09-10T00:34:43Z In recent decades, acceleration of coastal erosion has been observed at many key sites of the Arctic region. Coastal dynamics of both erosional and accretional stretches at Kharasavey, Kara Sea, was studied using multi-temporal remote sensing data covering the period from 1964 to 2022. Cross-proxy analyses of the interplay between coastal dynamics and regional (wave and thermal action) and local (geomorphic and lithological features; technogenic impact) drivers were supported by cluster analysis and wind–wave modelling via the Popov–Sovershaev method and WaveWatch III. Ice-rich permafrost bluffs and accretional sandy beaches exhibited a tendency towards persistent erosion (−1.03 m/yr and −0.42 m/yr, respectively). Shoreline progradation occurred locally near Cape Burunniy (6% of the accretional stretch) and may be due to sediment flux reversals responding to sea-ice decline. Although the mean rates of erosion were decreasing at a decadal scale, cluster analysis captured a slight increase in the retreat for 71% of the erosional stretch, which is apparently related to the forcing of wind–wave and thermal energy. Erosional hotspots (up to −7.9 m/yr) occurred mainly in the alignment of Cape Kharasavey and were predominantly caused by direct human impact. The presented study highlights the non-linear interaction of the Arctic coastal change and environmental drivers that require further upscaling of the applied models and remote sensing data. Article in Journal/Newspaper Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Kara Sea Kharasavey ENVELOPE(66.922,66.922,71.071,71.071) Remote Sensing 15 17 4199 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change Science Q |
spellingShingle |
coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change Science Q Georgii Kazhukalo Anna Novikova Natalya Shabanova Mikhail Drugov Stanislav Myslenkov Pavel Shabanov Nataliya Belova Stanislav Ogorodov Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
topic_facet |
coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change Science Q |
description |
In recent decades, acceleration of coastal erosion has been observed at many key sites of the Arctic region. Coastal dynamics of both erosional and accretional stretches at Kharasavey, Kara Sea, was studied using multi-temporal remote sensing data covering the period from 1964 to 2022. Cross-proxy analyses of the interplay between coastal dynamics and regional (wave and thermal action) and local (geomorphic and lithological features; technogenic impact) drivers were supported by cluster analysis and wind–wave modelling via the Popov–Sovershaev method and WaveWatch III. Ice-rich permafrost bluffs and accretional sandy beaches exhibited a tendency towards persistent erosion (−1.03 m/yr and −0.42 m/yr, respectively). Shoreline progradation occurred locally near Cape Burunniy (6% of the accretional stretch) and may be due to sediment flux reversals responding to sea-ice decline. Although the mean rates of erosion were decreasing at a decadal scale, cluster analysis captured a slight increase in the retreat for 71% of the erosional stretch, which is apparently related to the forcing of wind–wave and thermal energy. Erosional hotspots (up to −7.9 m/yr) occurred mainly in the alignment of Cape Kharasavey and were predominantly caused by direct human impact. The presented study highlights the non-linear interaction of the Arctic coastal change and environmental drivers that require further upscaling of the applied models and remote sensing data. |
format |
Article in Journal/Newspaper |
author |
Georgii Kazhukalo Anna Novikova Natalya Shabanova Mikhail Drugov Stanislav Myslenkov Pavel Shabanov Nataliya Belova Stanislav Ogorodov |
author_facet |
Georgii Kazhukalo Anna Novikova Natalya Shabanova Mikhail Drugov Stanislav Myslenkov Pavel Shabanov Nataliya Belova Stanislav Ogorodov |
author_sort |
Georgii Kazhukalo |
title |
Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
title_short |
Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
title_full |
Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
title_fullStr |
Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
title_full_unstemmed |
Coastal Dynamics at Kharasavey Key Site, Kara Sea, Based on Remote Sensing Data |
title_sort |
coastal dynamics at kharasavey key site, kara sea, based on remote sensing data |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15174199 https://doaj.org/article/e9540a6faa1041f7a9a5a61e84a3dfb8 |
long_lat |
ENVELOPE(66.922,66.922,71.071,71.071) |
geographic |
Arctic Kara Sea Kharasavey |
geographic_facet |
Arctic Kara Sea Kharasavey |
genre |
Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice |
genre_facet |
Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice |
op_source |
Remote Sensing, Vol 15, Iss 4199, p 4199 (2023) |
op_relation |
https://www.mdpi.com/2072-4292/15/17/4199 https://doaj.org/toc/2072-4292 doi:10.3390/rs15174199 2072-4292 https://doaj.org/article/e9540a6faa1041f7a9a5a61e84a3dfb8 |
op_doi |
https://doi.org/10.3390/rs15174199 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
17 |
container_start_page |
4199 |
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1779311885296861184 |