Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines

Detalhes bibliográficos
Autor(a) principal: Blount, Tegan R.
Data de Publicação: 2022
Outros Autores: Carrasco, A. Rita, Cristina, Sónia, Silvestri, Sonia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/18271
Resumo: From an ecological and socio-economic perspective, salt marshes are one of the most valuable natural assets on Earth. As external pressures are causing their extensive degradation and loss globally, the ability to monitor salt marshes on a long-term scale and identify drivers of change is essential for their conservation. Remote sensing has been demonstrated to be one of the most adept methods for this purpose and open-source multispectral satellite remote sensing missions have the potential to provide worldwide long-term time-series coverage that is non-cost-prohibitive. This study derives the long-term lateral evolution of four salt marsh patches in the Ria Formosa coastal lagoon (Portugal) using data from the Sentinel-2 and Landsat missions as well as from aerial photography surveys to quantitatively examine the accuracy and associated uncertainty in using open-source multispectral satellite remote sensing for this purpose. The results show that these open-source satellite archives can be a useful tool for tracking long-term salt marsh extent dynamics. During 1976-2020, there was a net loss of salt marsh in the study area, with erosion rates reaching an average of-3.3 m/yr opposite a tidal inlet. The main source of error in the satellite results was the dataset spatial resolution limits, but the specific salt marsh shoreline environment contributed to the relative magnitude of that error. The study notes the influence of eco-geomorphological dynamics on the mapping of sedimentary environments, so far not extensively discussed in scientific literature, highlighting the difference between mapping a morphological process and a sedimentary environment.
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spelling Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelinesMultispectral satelliteSalt marshTransitional zonesShoreline evolutionWetland mappingRia Formosa LagoonFrom an ecological and socio-economic perspective, salt marshes are one of the most valuable natural assets on Earth. As external pressures are causing their extensive degradation and loss globally, the ability to monitor salt marshes on a long-term scale and identify drivers of change is essential for their conservation. Remote sensing has been demonstrated to be one of the most adept methods for this purpose and open-source multispectral satellite remote sensing missions have the potential to provide worldwide long-term time-series coverage that is non-cost-prohibitive. This study derives the long-term lateral evolution of four salt marsh patches in the Ria Formosa coastal lagoon (Portugal) using data from the Sentinel-2 and Landsat missions as well as from aerial photography surveys to quantitatively examine the accuracy and associated uncertainty in using open-source multispectral satellite remote sensing for this purpose. The results show that these open-source satellite archives can be a useful tool for tracking long-term salt marsh extent dynamics. During 1976-2020, there was a net loss of salt marsh in the study area, with erosion rates reaching an average of-3.3 m/yr opposite a tidal inlet. The main source of error in the satellite results was the dataset spatial resolution limits, but the specific salt marsh shoreline environment contributed to the relative magnitude of that error. The study notes the influence of eco-geomorphological dynamics on the mapping of sedimentary environments, so far not extensively discussed in scientific literature, highlighting the difference between mapping a morphological process and a sedimentary environment.ElsevierSapientiaBlount, Tegan R.Carrasco, A. RitaCristina, SóniaSilvestri, Sonia2022-09-21T09:36:05Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/18271eng0272-771410.1016/j.ecss.2021.107664info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:30:30Zoai:sapientia.ualg.pt:10400.1/18271Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:08:04.631298Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
title Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
spellingShingle Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
Blount, Tegan R.
Multispectral satellite
Salt marsh
Transitional zones
Shoreline evolution
Wetland mapping
Ria Formosa Lagoon
title_short Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
title_full Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
title_fullStr Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
title_full_unstemmed Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
title_sort Exploring open-source multispectral satellite remote sensing as a tool to map long-term evolution of salt marsh shorelines
author Blount, Tegan R.
author_facet Blount, Tegan R.
Carrasco, A. Rita
Cristina, Sónia
Silvestri, Sonia
author_role author
author2 Carrasco, A. Rita
Cristina, Sónia
Silvestri, Sonia
author2_role author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Blount, Tegan R.
Carrasco, A. Rita
Cristina, Sónia
Silvestri, Sonia
dc.subject.por.fl_str_mv Multispectral satellite
Salt marsh
Transitional zones
Shoreline evolution
Wetland mapping
Ria Formosa Lagoon
topic Multispectral satellite
Salt marsh
Transitional zones
Shoreline evolution
Wetland mapping
Ria Formosa Lagoon
description From an ecological and socio-economic perspective, salt marshes are one of the most valuable natural assets on Earth. As external pressures are causing their extensive degradation and loss globally, the ability to monitor salt marshes on a long-term scale and identify drivers of change is essential for their conservation. Remote sensing has been demonstrated to be one of the most adept methods for this purpose and open-source multispectral satellite remote sensing missions have the potential to provide worldwide long-term time-series coverage that is non-cost-prohibitive. This study derives the long-term lateral evolution of four salt marsh patches in the Ria Formosa coastal lagoon (Portugal) using data from the Sentinel-2 and Landsat missions as well as from aerial photography surveys to quantitatively examine the accuracy and associated uncertainty in using open-source multispectral satellite remote sensing for this purpose. The results show that these open-source satellite archives can be a useful tool for tracking long-term salt marsh extent dynamics. During 1976-2020, there was a net loss of salt marsh in the study area, with erosion rates reaching an average of-3.3 m/yr opposite a tidal inlet. The main source of error in the satellite results was the dataset spatial resolution limits, but the specific salt marsh shoreline environment contributed to the relative magnitude of that error. The study notes the influence of eco-geomorphological dynamics on the mapping of sedimentary environments, so far not extensively discussed in scientific literature, highlighting the difference between mapping a morphological process and a sedimentary environment.
publishDate 2022
dc.date.none.fl_str_mv 2022-09-21T09:36:05Z
2022
2022-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/18271
url http://hdl.handle.net/10400.1/18271
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0272-7714
10.1016/j.ecss.2021.107664
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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