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dc.contributor.authorWargula, Anna E.  Concept link
dc.contributor.authorRaubenheimer, Britt  Concept link
dc.contributor.authorElgar, Steve  Concept link
dc.contributor.authorChen, Jia-Lin  Concept link
dc.contributor.authorShi, Fengyan  Concept link
dc.contributor.authorTraykovski, Peter A.  Concept link
dc.date.accessioned2018-11-01T14:55:06Z
dc.date.available2019-03-22T09:27:14Z
dc.date.issued2018-09-22
dc.identifier.citationJournal of Geophysical Research: Oceans 123 (2018): 6779-6799en_US
dc.identifier.urihttps://hdl.handle.net/1912/10672
dc.descriptionAuthor Posting. © American Geophysical Union, 2018. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 123 (2018): 6779-6799, doi:10.1029/2017JC013625.en_US
dc.description.abstractObservations of water levels, waves, currents, and bathymetry collected for a month at an unstratified tidal inlet with a shallow (1 to 2 m deep) ebb shoal are used to evaluate the asymmetry in flows and dynamics owing to inertia and waves. Along‐channel currents ranged from −1.5 to 0.6 m/s (positive inland) inside the main (3 to 5 m deep) channel crossing the ebb shoal. Net discharge is negligible, and ebb dominance of the channel flows is owing to inflow and outflow asymmetries near the inlet mouth. Offshore wave heights ranged from 0.5 to 2.5 m. During moderate to large wave events (offshore significant wave heights >1.2 m), wave forcing enhanced onshore mass flux near the shoal edge and inside the inlet, leading to reduced ebb flow dominance. Momentum balances estimated with the water depths, currents, and waves simulated with a quasi 3‐D numerical model reproduce the momentum balances estimated from the observations reasonably well. Both observations and simulations suggest that ebb‐dominant bottom stresses are balanced by the ebb‐dominant pressure gradient and the tidally asymmetric inertia, which is a sink (source) of momentum on flood (ebb). Simulations with and without waves suggest that waves drive local and nonlocal changes in the water levels and flows. Specifically, breaking waves at the offshore edge of the ebb shoal induce setup and partially block the ebb jet (local effects), which leads to a more onshore‐directed mass flux, changes to the advection across the ebb shoal, and increased water levels inside the inlet mouth (nonlocal effects).en_US
dc.description.sponsorshipWHOI Coastal Ocean Institute Student Research; Office of the Assistant Secretary of Defense for Research and Engineering; National Defense Science and Engineering; National Science Foundation; Office of Naval Researchen_US
dc.language.isoen_USen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1029/2017JC013625
dc.subjectInletsen_US
dc.subjectWavesen_US
dc.subjectInertiaen_US
dc.subjectTidal asymmetryen_US
dc.subjectEbb shoalen_US
dc.titleTidal flow asymmetry owing to inertia and waves on an unstratified, shallow ebb shoalen_US
dc.typeArticleen_US
dc.description.embargo2019-03-22en_US
dc.identifier.doi10.1029/2017JC013625


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