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dc.contributor.authorHopkins, Julia  Concept link
dc.contributor.authorElgar, Steve  Concept link
dc.contributor.authorRaubenheimer, Britt  Concept link
dc.date.accessioned2017-07-06T17:35:19Z
dc.date.available2017-07-06T17:35:19Z
dc.date.issued2017-01
dc.identifier.urihttps://hdl.handle.net/1912/9075
dc.descriptionAuthor Posting. © The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Coastal Engineering 125 (2017): 23–27, doi:10.1016/j.coastaleng.2017.04.007.en_US
dc.description.abstractField-tested numerical model simulations are used to estimate the effects of an inlet, ebb shoal, wave height, wave direction, and shoreline geometry on the variability of bathymetric change on a curved coast with a migrating inlet and strong nearshore currents. The model uses bathymetry measured along the southern shoreline of Martha’s Vineyard, MA, and was validated with waves and currents observed from the shoreline to ~10-m water depth. Between 2007 and 2014, the inlet was open and the shoreline along the southeast corner of the island eroded ~200 m and became sharper. Between 2014 and 2015, the corner accreted and became smoother as the inlet closed. Numerical simulations indicate that variability of sediment transport near the corner shoreline depends more strongly on its radius of curvature (a proxy for the separation of tidal flows from the coast) than on the presence of the inlet, the ebb shoal, or wave height and direction. As the radius of curvature decreases (as the corner sharpens), tidal asymmetry of nearshore currents is enhanced, leading to more sediment transport near the shoreline over several tidal cycles. The results suggest that feedbacks between shoreline geometry and inner-shelf flows can be important to coastal erosion and accretion in the vicinity of an inlet.en_US
dc.description.sponsorshipFunding was provided by NSF, Sea Grant (NOAA), NDSEG, ASD(R&E), and ONR.en_US
dc.language.isoen_USen_US
dc.relation.urihttps://doi.org/10.1016/j.coastaleng.2017.04.007
dc.subjectFlow separationen_US
dc.subjectInlet hydrodynamicsen_US
dc.subjectNumerical modelingen_US
dc.subjectCoastal evolutionen_US
dc.subjectDelft3Den_US
dc.titleFlow separation effects on shoreline sediment transporten_US
dc.typePreprinten_US


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