Effect of wave-current interaction on waves and circulation over Georges Bank during storm events

Dongmei Xie, Qingping Zou

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Abstract

The coupled spectral wave and circulation model SWAN+ADCIRC was applied to investigate the wave-current interaction during storm events over Georges Bank, a large shallow submarine bank on the eastern seaboard of North America that separates Gulf of Maine from the North Atlantic Ocean. The current over the Georges Bank displays a rotary feature over a tidal cycle. The wave-induced current is in the same order as the wind-driven current and generally in the same direction as the depth-Averaged tidal current, indicating strong nonlinear wave-current interaction. The magnitude of wave-induced current reaches 0.07 m/s at low tide and 0.2 m/s at the other three tidal phases. The effect of wave-current interaction on waves at the four tidal phases is also analyzed. The role of Georges Bank in dissipating wave energy is most significant at rising mid-Tide and high tide, which is close to the storm peak. At rising mid-Tide, the wave height is decreased by 0.3 m to 0.5 m over the majority of the bank when the wave propagates in the same direction as the current. At falling-mid tide, the wave height is increased by 0.5 m at the southern flank and decreased by 0.5 m at the northern flank of the bank.

Original languageEnglish
Title of host publicationProceedings of the 35th International Conference on Coastal Engineering 2016
EditorsPatrick Lynett
PublisherCoastal Engineering Research Council
ISBN (Electronic)9780989661133
DOIs
Publication statusPublished - 2016
Event35th International Conference on Coastal Engineering 2016 - Antalya, Turkey
Duration: 17 Nov 201620 Nov 2016

Publication series

NameCoastal Engineering Proceedings
Volume35
ISSN (Print)2156-1028

Conference

Conference35th International Conference on Coastal Engineering 2016
Abbreviated titleICCE 2016
CountryTurkey
CityAntalya
Period17/11/1620/11/16

Keywords

  • ADCIRC
  • Georges Bank
  • SWAN
  • Wave-induced current

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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    Xie, D., & Zou, Q. (2016). Effect of wave-current interaction on waves and circulation over Georges Bank during storm events. In P. Lynett (Ed.), Proceedings of the 35th International Conference on Coastal Engineering 2016 (Coastal Engineering Proceedings; Vol. 35). Coastal Engineering Research Council. https://doi.org/10.9753/icce.v35.waves.18