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TitreQuantifying macro-scale geomorphological changes post-Hurricane Sandy and Hurricane Joaquin at Assateague Island utilizing bathymetric mapping techniques
TéléchargerTéléchargement (publication entière)
AuteurHaulsee, K, III
SourceProgram and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada; par Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; Commission géologique du Canada, Dossier public 8295, 2017 p. 56, https://doi.org/10.4095/305856 (Accès ouvert)
LiensGeoHab 2017
Année2017
ÉditeurRessources naturelles Canada
Réunion2017 GeoHab: Marine Geological and Biological Habitat Mapping; Dartmouth, NS; CA; mai 1-4, 2017
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/305856
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; (2017). Program and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada, Commission géologique du Canada, Dossier public 8295
Formatspdf
Lat/Long OENS -75.5000 -75.0000 38.5000 37.5000
Sujetstechniques de cartographie; océanographie; milieux marins; études côtières; bathymétrie; îles-barrières; sédiments marins; transport des sediments; changements du niveau de la mer; tempêtes; courants; levés géophysiques; levés acoustiques marins; levés au sonar; gestion des ressources; géologie marine; géologie des dépôts meubles/géomorphologie; géophysique
ProgrammeGéoscience de la gestion des océans, Géoscience en mer
Diffusé2017 09 26
Résumé(disponible en anglais seulement)
Assateague Island is a barrier island complex that stretches 37 miles along the Atlantic coast of Maryland and Virginia. The island's location along the eastern seaboard makes for a highly dynamic system that not only changes over long temporal scale through longshore transport and sea level transgression/ regression, but also over short seasonal scales due to strong currents and storm events such as Hurricane Sandy in late October 2012 and Hurricane Joaquin in October 2015. Geologically speaking, both hurricanes gave us a rare opportunity to quantify large spatial scale sea-floor changes over a short temporal scale because of the vast amount of energy that moved through the region in 2012 and 2015. This coastal geomorphological study will aim to quantify the macro-scale changes that took place over time by utilizing data collected via bathymetric sea-floor mapping surveys that took place in 2011 and 2014. The first data set was collected by the Maryland Geological Survey pre-Hurricane Sandy (2011), using a Versar single-beam echosounder. This will be compared to multi-phase bathymetric data that was collected by the University of Delaware utilizing an Edgetech 6205 multi-phase echosounder (2015). Comparing these two data sets allows us to measure large spatial scale changes over a short temporal scale. This will aim to quantify the amount of substrate changes and overall sediment movement based off each storm event. This study will have implications for quantifying near shore sand resource movement during storm events.
GEOSCAN ID305856