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Shoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada)

2023Journal article Open access
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dc.contributor.authorTanguy, Rodrigue
dc.contributor.authorWhalen, Dustin
dc.contributor.authorPrates, Gonçalo
dc.contributor.authorVieira, Gonçalo
dc.date.accessioned2023-04-05T09:11:28Z
dc.date.available2023-04-05T09:11:28Z
dc.date.issued2023
dc.description.abstractAs the Arctic is warming, 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 m3/m/yr and the soil organic carbon (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.pt_PT
dc.description.sponsorshipNatural Resources Canada; Canadian Forest Service; Climate Change Geoscience Program, Crown-Indigenous Relations and Northern Affairs Canada (CIRNAC) through the Beaufort Sea; Regional Strategic Environment and Research Assessment (BRSEA); European Union's Horizon 2020 Research and Innovation Program; Community of Paulatukpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1139/AS-2022-0028pt_PT
dc.identifier.eissn2368-7460
dc.identifier.urihttp://hdl.handle.net/10400.1/19403
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCanadian Science Publishingpt_PT
dc.relationPermafrost thaw and the changing arctic coast: science for socio-economic adaptation
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCoastal dynamicspt_PT
dc.subjectPermafrostpt_PT
dc.subjectDarnley Baypt_PT
dc.subjectCarbon fluxespt_PT
dc.subjectRemote sensingpt_PT
dc.titleShoreline change rates and land to sea sediment and soil organic carbon transfer in eastern Parry Peninsula from 1965 to 2020 (Amundsen Gulf, Canada)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePermafrost thaw and the changing arctic coast: science for socio-economic adaptation
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/773421/EU
oaire.citation.endPage20pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleArctic Sciencept_PT
oaire.fundingStreamH2020
person.familyNamePrates
person.givenNameGonçalo
person.identifierR-001-Y1J
person.identifier.ciencia-idFC15-AE46-CE93
person.identifier.orcid0000-0001-5797-9158
person.identifier.ridK-4018-2014
person.identifier.scopus-author-id6504498720
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication286735d2-0aa5-447a-b90f-e7d2f217d652
relation.isAuthorOfPublication.latestForDiscovery286735d2-0aa5-447a-b90f-e7d2f217d652
relation.isProjectOfPublicationbc3ba161-4609-477a-8cee-52c2387abc87
relation.isProjectOfPublication.latestForDiscoverybc3ba161-4609-477a-8cee-52c2387abc87

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