Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada)
As the Arctic warms, permafrost coasts are eroding faster, threatening coastal communities, habitats, and altering sediment and nutrient budgets. The western Canadian Arctic is eroding at a rapid pace, however little is known on changes occurring in the Amundsen Gulf area. This study was conducted i...
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2023
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Online Access: | http://dx.doi.org/10.1139/as-2022-0028 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2022-0028 |
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crcansciencepubl:10.1139/as-2022-0028 2024-04-28T07:54:36+00:00 Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) Tanguy, Rodrigue Whalen, Dustin Prates, Gonçalo Vieira, Gonçalo 2023 http://dx.doi.org/10.1139/as-2022-0028 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2022-0028 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science ISSN 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2023 crcansciencepubl https://doi.org/10.1139/as-2022-0028 2024-04-09T06:56:28Z As the Arctic warms, permafrost coasts are eroding faster, threatening coastal communities, habitats, and altering sediment and nutrient budgets. The western Canadian Arctic is eroding at a rapid pace, however little is known on changes occurring in the Amundsen Gulf area. This study was conducted in the eastern coast of Parry Peninsula, a neglected rock-dominated coastal area. We used orthorectified aerial photos of 1965 and 1993 and very-high resolution satellite imagery of 2020 to manually delineate the shoreline according to backshore and foreshore centered approaches. Shoreline change rates were calculated and sediment and Organic Carbon transfer from land to sea estimated using digital elevation model, the Northern Circumpolar Soil Carbon Database and ground-ice content. The results show a mean erosion rate of 0.12 m/yr for the backshore zone and 0.16 m/yr for the foreshore zone, with increasing erosion in the Paulatuk Peninsula in recent decades. The average sediment transfer from land to sea was 20 m 3 /m/yr and the SOC flux was 7 kg C/m/yr. We highlight the importance of using the cliff-top as shoreline reference to accurately estimate sediment and SOC transfers, an approach neglected in automatic shoreline delineation techniques based on remote sensing imagery using the waterline. Article in Journal/Newspaper Amundsen Gulf Arctic Arctic Ice Parry Peninsula Paulatuk permafrost Canadian Science Publishing Arctic Science |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
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General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Tanguy, Rodrigue Whalen, Dustin Prates, Gonçalo Vieira, Gonçalo Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
description |
As the Arctic warms, permafrost coasts are eroding faster, threatening coastal communities, habitats, and altering sediment and nutrient budgets. The western Canadian Arctic is eroding at a rapid pace, however little is known on changes occurring in the Amundsen Gulf area. This study was conducted in the eastern coast of Parry Peninsula, a neglected rock-dominated coastal area. We used orthorectified aerial photos of 1965 and 1993 and very-high resolution satellite imagery of 2020 to manually delineate the shoreline according to backshore and foreshore centered approaches. Shoreline change rates were calculated and sediment and Organic Carbon transfer from land to sea estimated using digital elevation model, the Northern Circumpolar Soil Carbon Database and ground-ice content. The results show a mean erosion rate of 0.12 m/yr for the backshore zone and 0.16 m/yr for the foreshore zone, with increasing erosion in the Paulatuk Peninsula in recent decades. The average sediment transfer from land to sea was 20 m 3 /m/yr and the SOC flux was 7 kg C/m/yr. We highlight the importance of using the cliff-top as shoreline reference to accurately estimate sediment and SOC transfers, an approach neglected in automatic shoreline delineation techniques based on remote sensing imagery using the waterline. |
format |
Article in Journal/Newspaper |
author |
Tanguy, Rodrigue Whalen, Dustin Prates, Gonçalo Vieira, Gonçalo |
author_facet |
Tanguy, Rodrigue Whalen, Dustin Prates, Gonçalo Vieira, Gonçalo |
author_sort |
Tanguy, Rodrigue |
title |
Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
title_short |
Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
title_full |
Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
title_fullStr |
Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
title_full_unstemmed |
Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada) |
title_sort |
shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern parry peninsula from 1965 to 2020 (amundsen gulf, canada) |
publisher |
Canadian Science Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1139/as-2022-0028 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2022-0028 |
genre |
Amundsen Gulf Arctic Arctic Ice Parry Peninsula Paulatuk permafrost |
genre_facet |
Amundsen Gulf Arctic Arctic Ice Parry Peninsula Paulatuk permafrost |
op_source |
Arctic Science ISSN 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/as-2022-0028 |
container_title |
Arctic Science |
_version_ |
1797576346413563904 |