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...
Published in: | Remote Sensing |
---|---|
Main Authors: | , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3390/rs15174199 |
id |
ftmdpi:oai:mdpi.com:/2072-4292/15/17/4199/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2072-4292/15/17/4199/ 2023-09-26T15:14:17+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 agris 2023-08-26 application/pdf https://doi.org/10.3390/rs15174199 EN eng Multidisciplinary Digital Publishing Institute Remote Sensing in Geology, Geomorphology and Hydrology https://dx.doi.org/10.3390/rs15174199 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 15; Issue 17; Pages: 4199 coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change WaveWatch III cluster analysis Arctic Kara Sea Yamal Peninsula Text 2023 ftmdpi https://doi.org/10.3390/rs15174199 2023-08-27T23:54:15Z 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. Text Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice Yamal Peninsula MDPI Open Access Publishing Arctic Kara Sea Kharasavey ENVELOPE(66.922,66.922,71.071,71.071) Yamal Peninsula ENVELOPE(69.873,69.873,70.816,70.816) Remote Sensing 15 17 4199 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change WaveWatch III cluster analysis Arctic Kara Sea Yamal Peninsula |
spellingShingle |
coastal dynamics permafrost multi-temporal images bluffs erosion shoreline accretion climate change WaveWatch III cluster analysis Arctic Kara Sea Yamal Peninsula 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 WaveWatch III cluster analysis Arctic Kara Sea Yamal Peninsula |
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 |
Text |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15174199 |
op_coverage |
agris |
long_lat |
ENVELOPE(66.922,66.922,71.071,71.071) ENVELOPE(69.873,69.873,70.816,70.816) |
geographic |
Arctic Kara Sea Kharasavey Yamal Peninsula |
geographic_facet |
Arctic Kara Sea Kharasavey Yamal Peninsula |
genre |
Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice Yamal Peninsula |
genre_facet |
Arctic Climate change Ice Kara Sea Kharasavey permafrost Sea ice Yamal Peninsula |
op_source |
Remote Sensing; Volume 15; Issue 17; Pages: 4199 |
op_relation |
Remote Sensing in Geology, Geomorphology and Hydrology https://dx.doi.org/10.3390/rs15174199 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs15174199 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
17 |
container_start_page |
4199 |
_version_ |
1778135034230734848 |