EdenteV2, Main, Exploration, bibRecord, 002D65

Annual to decadal morphodynamics of the foredune system at Greenwich Dunes, Prince Edward Island, Canada

Identifieur interne : 002D65 ( Main/Exploration ); précédent : 002D64; suivant : 002D66

Annual to decadal morphodynamics of the foredune system at Greenwich Dunes, Prince Edward Island, Canada

Auteurs : Jeff Ollerhead [Canada] ; Robin Davidson-Arnott [Canada] ; Ian J. Walker [Canada] ; Sojan Mathew [États-Unis]

Source :

Earth Surface Processes and Landforms [ 0197-9337 ] ; 2013-03-15.

RBID : ISTEX:BA15CDB0C295D4B80E4CE905F16F7A967528B036

Descripteurs français

Wicri :
- topic : Changement climatique, Droit d'auteur, Sciences de la terre, érosion, Géomorphologie, Réchauffement climatique, Littoral.

English descriptors

Abstract

The purpose of this study was to quantify relationships between season, sediment availability, sediment transport pathways, and beach/foredune morphology at Greenwich Dunes, PEI. This was done for periods ranging from a few days to multiple decades using erosion pins, bedframe measurements, annual surveys, and digital photogrammetry using historical aerial photographs. The relative significance of seasonal/annual processes versus response of the foredune system to broader geomorphic controls (e.g. relative sea level rise, storms, etc.) was also assessed. The data show that there are clear seasonal differences in the patterns of sand supply from the beach to the foredune at Greenwich and that there are differences in sediment supply to the foredune between the east and west reaches of the study area, resulting in ongoing differences in foredune morphology. They also demonstrate that models that incorporate wind climate alone, or even models that include other factors like beach moisture, would not be able to predict the amount of sediment movement from the beach to the foredune in this environment unless there were some way to parameterize system morphology, especially the presence or absence of a dune ramp. Finally, the data suggest that the foredune can migrate landward while maintaining its form via transfers of sediment from the stoss slope, over the crest, and onto the lee slope. Although the rate of foredune development or recovery after disturbance changes over time due to morphological feedback, the overall decadal evolution of the foredune system at Greenwich is consistent with, and supports, the Davidson‐Arnott (2005) conceptual model of dune transgression under rising sea level. Copyright © 2012 John Wiley & Sons, Ltd.

Url:

https://api.istex.fr/document/BA15CDB0C295D4B80E4CE905F16F7A967528B036/fulltext/pdf

DOI: 10.1002/esp.3327

Affiliations:

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Le document en format XML

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<author><name sortKey="Ollerhead, Jeff" sort="Ollerhead, Jeff" uniqKey="Ollerhead J" first="Jeff" last="Ollerhead">Jeff Ollerhead</name>
</author>
<author><name sortKey="Davidson Rnott, Robin" sort="Davidson Rnott, Robin" uniqKey="Davidson Rnott R" first="Robin" last="Davidson-Arnott">Robin Davidson-Arnott</name>
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<author><name sortKey="Walker, Ian J" sort="Walker, Ian J" uniqKey="Walker I" first="Ian J." last="Walker">Ian J. Walker</name>
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<author><name sortKey="Mathew, Sojan" sort="Mathew, Sojan" uniqKey="Mathew S" first="Sojan" last="Mathew">Sojan Mathew</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aagaard</term>
<term>Aeolian</term>
<term>Aeolian sand transport</term>
<term>Aeolian sediment transport</term>
<term>Aeolian transport</term>
<term>Alongshore</term>
<term>Annual profile data</term>
<term>April</term>
<term>Average rate</term>
<term>Bauer</term>
<term>Beach width</term>
<term>Bedframe</term>
<term>Bedframe measurements</term>
<term>Canadian journal</term>
<term>Cliffed</term>
<term>Climate change</term>
<term>Coastal</term>
<term>Coastal dunes</term>
<term>Coastal engineering</term>
<term>Coastal foredunes</term>
<term>Coastal impacts</term>
<term>Coastal research</term>
<term>Coastal sand dunes</term>
<term>Colour</term>
<term>Conceptual model</term>
<term>Copyright</term>
<term>December</term>
<term>Deposition</term>
<term>Digital photogrammetry</term>
<term>Dune</term>
<term>Dune crest</term>
<term>Dune erosion</term>
<term>Dune evolution</term>
<term>Dune ramp</term>
<term>Dune ramps</term>
<term>Dune sediment budgets</term>
<term>Dune systems</term>
<term>Earth sciences</term>
<term>Earth surf</term>
<term>Earth surface processes</term>
<term>Embryo</term>
<term>Embryo dune</term>
<term>Embryo dunes</term>
<term>Erosion</term>
<term>Foredune</term>
<term>Foredune crest</term>
<term>Foredune development</term>
<term>Foredune dynamics</term>
<term>Foredune evolution</term>
<term>Foredune height</term>
<term>Foredune system</term>
<term>Foredunes</term>
<term>Geological society</term>
<term>Geological survey</term>
<term>Geomorphology</term>
<term>Global warming</term>
<term>Greenwich dunes</term>
<term>Hesp</term>
<term>Holocene</term>
<term>Houser</term>
<term>Intense storm</term>
<term>John wiley sons</term>
<term>Landforms</term>
<term>Landward</term>
<term>Large waves</term>
<term>Late fall</term>
<term>Level rise</term>
<term>Littoral</term>
<term>Littoral sediment budget</term>
<term>Marine geology</term>
<term>Mathew</term>
<term>Mckenna neuman</term>
<term>Morphodynamics</term>
<term>Morphological feedback</term>
<term>Nearshore</term>
<term>October</term>
<term>Ollerhead</term>
<term>Onshore</term>
<term>Onshore winds</term>
<term>Overwash</term>
<term>Pathway</term>
<term>Prince edward island</term>
<term>Ramp</term>
<term>Sand supply</term>
<term>Sand transport</term>
<term>Scarping</term>
<term>Seasonal patterns</term>
<term>Sediment</term>
<term>Sediment deposition</term>
<term>Sediment supply</term>
<term>Sediment transport</term>
<term>Sediment transport pathways</term>
<term>Slope line</term>
<term>Small amounts</term>
<term>Southern gulf</term>
<term>Spatial scale</term>
<term>Stoss</term>
<term>Stoss slope</term>
<term>Study area</term>
<term>Study site</term>
<term>Surf</term>
<term>Surface elevation</term>
<term>Temporal scale</term>
<term>Transgression</term>
<term>Upper beach</term>
<term>Upper stoss slope</term>
<term>Vegetated</term>
<term>Vegetated stoss slope</term>
<term>Vegetation</term>
<term>Vegetation height</term>
<term>Wind regime</term>
<term>Winter months</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Aagaard</term>
<term>Aeolian</term>
<term>Aeolian sand transport</term>
<term>Aeolian sediment transport</term>
<term>Aeolian transport</term>
<term>Alongshore</term>
<term>Annual profile data</term>
<term>April</term>
<term>Average rate</term>
<term>Bauer</term>
<term>Beach width</term>
<term>Bedframe</term>
<term>Bedframe measurements</term>
<term>Canadian journal</term>
<term>Cliffed</term>
<term>Climate change</term>
<term>Coastal</term>
<term>Coastal dunes</term>
<term>Coastal engineering</term>
<term>Coastal foredunes</term>
<term>Coastal impacts</term>
<term>Coastal research</term>
<term>Coastal sand dunes</term>
<term>Colour</term>
<term>Conceptual model</term>
<term>Copyright</term>
<term>December</term>
<term>Deposition</term>
<term>Digital photogrammetry</term>
<term>Dune</term>
<term>Dune crest</term>
<term>Dune erosion</term>
<term>Dune evolution</term>
<term>Dune ramp</term>
<term>Dune ramps</term>
<term>Dune sediment budgets</term>
<term>Dune systems</term>
<term>Earth sciences</term>
<term>Earth surf</term>
<term>Earth surface processes</term>
<term>Embryo</term>
<term>Embryo dune</term>
<term>Embryo dunes</term>
<term>Erosion</term>
<term>Foredune</term>
<term>Foredune crest</term>
<term>Foredune development</term>
<term>Foredune dynamics</term>
<term>Foredune evolution</term>
<term>Foredune height</term>
<term>Foredune system</term>
<term>Foredunes</term>
<term>Geological society</term>
<term>Geological survey</term>
<term>Geomorphology</term>
<term>Global warming</term>
<term>Greenwich dunes</term>
<term>Hesp</term>
<term>Holocene</term>
<term>Houser</term>
<term>Intense storm</term>
<term>John wiley sons</term>
<term>Landforms</term>
<term>Landward</term>
<term>Large waves</term>
<term>Late fall</term>
<term>Level rise</term>
<term>Littoral</term>
<term>Littoral sediment budget</term>
<term>Marine geology</term>
<term>Mathew</term>
<term>Mckenna neuman</term>
<term>Morphodynamics</term>
<term>Morphological feedback</term>
<term>Nearshore</term>
<term>October</term>
<term>Ollerhead</term>
<term>Onshore</term>
<term>Onshore winds</term>
<term>Overwash</term>
<term>Pathway</term>
<term>Prince edward island</term>
<term>Ramp</term>
<term>Sand supply</term>
<term>Sand transport</term>
<term>Scarping</term>
<term>Seasonal patterns</term>
<term>Sediment</term>
<term>Sediment deposition</term>
<term>Sediment supply</term>
<term>Sediment transport</term>
<term>Sediment transport pathways</term>
<term>Slope line</term>
<term>Small amounts</term>
<term>Southern gulf</term>
<term>Spatial scale</term>
<term>Stoss</term>
<term>Stoss slope</term>
<term>Study area</term>
<term>Study site</term>
<term>Surf</term>
<term>Surface elevation</term>
<term>Temporal scale</term>
<term>Transgression</term>
<term>Upper beach</term>
<term>Upper stoss slope</term>
<term>Vegetated</term>
<term>Vegetated stoss slope</term>
<term>Vegetation</term>
<term>Vegetation height</term>
<term>Wind regime</term>
<term>Winter months</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Changement climatique</term>
<term>Droit d'auteur</term>
<term>Sciences de la terre</term>
<term>érosion</term>
<term>Géomorphologie</term>
<term>Réchauffement climatique</term>
<term>Littoral</term>
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<front><div type="abstract">The purpose of this study was to quantify relationships between season, sediment availability, sediment transport pathways, and beach/foredune morphology at Greenwich Dunes, PEI. This was done for periods ranging from a few days to multiple decades using erosion pins, bedframe measurements, annual surveys, and digital photogrammetry using historical aerial photographs. The relative significance of seasonal/annual processes versus response of the foredune system to broader geomorphic controls (e.g. relative sea level rise, storms, etc.) was also assessed. The data show that there are clear seasonal differences in the patterns of sand supply from the beach to the foredune at Greenwich and that there are differences in sediment supply to the foredune between the east and west reaches of the study area, resulting in ongoing differences in foredune morphology. They also demonstrate that models that incorporate wind climate alone, or even models that include other factors like beach moisture, would not be able to predict the amount of sediment movement from the beach to the foredune in this environment unless there were some way to parameterize system morphology, especially the presence or absence of a dune ramp. Finally, the data suggest that the foredune can migrate landward while maintaining its form via transfers of sediment from the stoss slope, over the crest, and onto the lee slope. Although the rate of foredune development or recovery after disturbance changes over time due to morphological feedback, the overall decadal evolution of the foredune system at Greenwich is consistent with, and supports, the Davidson‐Arnott (2005) conceptual model of dune transgression under rising sea level. Copyright © 2012 John Wiley & Sons, Ltd.</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
<li>États-Unis</li>
</country>
<region><li>Texas</li>
</region>
<settlement><li>Austin (Texas)</li>
</settlement>
<orgName><li>Université du Texas à Austin</li>
</orgName>
</list>
<tree><country name="Canada"><noRegion><name sortKey="Ollerhead, Jeff" sort="Ollerhead, Jeff" uniqKey="Ollerhead J" first="Jeff" last="Ollerhead">Jeff Ollerhead</name>
</noRegion>
<name sortKey="Davidson Rnott, Robin" sort="Davidson Rnott, Robin" uniqKey="Davidson Rnott R" first="Robin" last="Davidson-Arnott">Robin Davidson-Arnott</name>
<name sortKey="Walker, Ian J" sort="Walker, Ian J" uniqKey="Walker I" first="Ian J." last="Walker">Ian J. Walker</name>
</country>
<country name="États-Unis"><region name="Texas"><name sortKey="Mathew, Sojan" sort="Mathew, Sojan" uniqKey="Mathew S" first="Sojan" last="Mathew">Sojan Mathew</name>
</region>
</country>
</tree>
</affiliations>
</record>

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Annual to decadal morphodynamics of the foredune system at Greenwich Dunes, Prince Edward Island, Canada

Annual to decadal morphodynamics of the foredune system at Greenwich Dunes, Prince Edward Island, Canada

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri