High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles
International audience Using multi-date satellite imagery and field observations, this paper assesses the inferred impacts of September 2017 cyclones on the beaches of Saint-Martin Island. Twenty-two beaches out of 30 predominantly exhibited shoreline retreat, with the highest retreat value (−166.45...
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Online Access: | https://doi.org/10.1016/j.geomorph.2018.09.029 https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514/file/Accepted_Manuscript_Geomorphology.pdf https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514 |
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fttriple:oai:gotriple.eu:10670/1.7e8svh 2023-05-15T17:10:27+02:00 High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles Duvat, Virginie Pillet, Valentin Volto, Natacha Krien, Yann Cécé, Raphaël Bernard, Didier LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Recherche en Géosciences et Energies (LARGE) Université des Antilles (UA) 2019-01-01 https://doi.org/10.1016/j.geomorph.2018.09.029 https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514/file/Accepted_Manuscript_Geomorphology.pdf https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514 en eng HAL CCSD Elsevier hal-01924514 doi:10.1016/j.geomorph.2018.09.029 10670/1.7e8svh https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514/file/Accepted_Manuscript_Geomorphology.pdf https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0169-555X Geomorphology Geomorphology, Elsevier, 2019, 325, pp.70-91. ⟨10.1016/j.geomorph.2018.09.029⟩ Small islands Tropical cyclones Shoreline change Lesser Antilles geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2019 fttriple https://doi.org/10.1016/j.geomorph.2018.09.029 2023-01-22T17:36:13Z International audience Using multi-date satellite imagery and field observations, this paper assesses the inferred impacts of September 2017 cyclones on the beaches of Saint-Martin Island. Twenty-two beaches out of 30 predominantly exhibited shoreline retreat, with the highest retreat value (−166.45 m) recorded on the north-eastern coast. While erosion predominated on beaches and at the sand dune front, inner areas generally exhibited accretion, with sand sheets (up to 135 m from the pre-cyclone vegetation line) indicating landward sediment transfer. Natural back-reef beaches exhibited the formation of new beach ridges, marked (up to 2 m) upward growth and alongshore beach extension. The high spatial variability of inferred impacts is attributed to the cyclone's track, coast exposure, beach configuration and, importantly, human-driven environmental change. Whereas vegetation removal exacerbated marine inundation and inhibited the vertical accretion of beaches, shoreline hardening aggravated wave-induced sediment loss while also inhibiting sediment deposition. Four beach response modes are distinguished. Based on findings, we identified three major areas of action for risk reduction and adaptation to climate change. Depending on beach response and site specificities, relocation and the determination of set-back lines, coastal buffer restoration, or engineered structures' upgrading should be prioritized. Article in Journal/Newspaper Martin Island Unknown Martin Island ENVELOPE(56.967,56.967,-66.733,-66.733) The Beaches ENVELOPE(-56.832,-56.832,49.583,49.583) Geomorphology 325 70 91 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Small islands Tropical cyclones Shoreline change Lesser Antilles geo envir |
spellingShingle |
Small islands Tropical cyclones Shoreline change Lesser Antilles geo envir Duvat, Virginie Pillet, Valentin Volto, Natacha Krien, Yann Cécé, Raphaël Bernard, Didier High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
topic_facet |
Small islands Tropical cyclones Shoreline change Lesser Antilles geo envir |
description |
International audience Using multi-date satellite imagery and field observations, this paper assesses the inferred impacts of September 2017 cyclones on the beaches of Saint-Martin Island. Twenty-two beaches out of 30 predominantly exhibited shoreline retreat, with the highest retreat value (−166.45 m) recorded on the north-eastern coast. While erosion predominated on beaches and at the sand dune front, inner areas generally exhibited accretion, with sand sheets (up to 135 m from the pre-cyclone vegetation line) indicating landward sediment transfer. Natural back-reef beaches exhibited the formation of new beach ridges, marked (up to 2 m) upward growth and alongshore beach extension. The high spatial variability of inferred impacts is attributed to the cyclone's track, coast exposure, beach configuration and, importantly, human-driven environmental change. Whereas vegetation removal exacerbated marine inundation and inhibited the vertical accretion of beaches, shoreline hardening aggravated wave-induced sediment loss while also inhibiting sediment deposition. Four beach response modes are distinguished. Based on findings, we identified three major areas of action for risk reduction and adaptation to climate change. Depending on beach response and site specificities, relocation and the determination of set-back lines, coastal buffer restoration, or engineered structures' upgrading should be prioritized. |
author2 |
LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Recherche en Géosciences et Energies (LARGE) Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Duvat, Virginie Pillet, Valentin Volto, Natacha Krien, Yann Cécé, Raphaël Bernard, Didier |
author_facet |
Duvat, Virginie Pillet, Valentin Volto, Natacha Krien, Yann Cécé, Raphaël Bernard, Didier |
author_sort |
Duvat, Virginie |
title |
High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
title_short |
High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
title_full |
High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
title_fullStr |
High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
title_full_unstemmed |
High human influence on beach response to tropical cyclones in small islands: Saint-Martin Island, Lesser Antilles |
title_sort |
high human influence on beach response to tropical cyclones in small islands: saint-martin island, lesser antilles |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://doi.org/10.1016/j.geomorph.2018.09.029 https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514/file/Accepted_Manuscript_Geomorphology.pdf https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514 |
long_lat |
ENVELOPE(56.967,56.967,-66.733,-66.733) ENVELOPE(-56.832,-56.832,49.583,49.583) |
geographic |
Martin Island The Beaches |
geographic_facet |
Martin Island The Beaches |
genre |
Martin Island |
genre_facet |
Martin Island |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0169-555X Geomorphology Geomorphology, Elsevier, 2019, 325, pp.70-91. ⟨10.1016/j.geomorph.2018.09.029⟩ |
op_relation |
hal-01924514 doi:10.1016/j.geomorph.2018.09.029 10670/1.7e8svh https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514/file/Accepted_Manuscript_Geomorphology.pdf https://hal-univ-rochelle.archives-ouvertes.fr/hal-01924514 |
op_rights |
other |
op_doi |
https://doi.org/10.1016/j.geomorph.2018.09.029 |
container_title |
Geomorphology |
container_volume |
325 |
container_start_page |
70 |
op_container_end_page |
91 |
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1766067036707880960 |