Fine grid tidal modeling of transient tidal eddies behind two headlands off southeast Korea

DC Field Value Language
dc.contributor.author 강석구 -
dc.contributor.author 마이크포만 -
dc.contributor.author 이재학 -
dc.contributor.author 김은진 -
dc.contributor.author 정경태 -
dc.date.accessioned 2020-07-15T23:32:13Z -
dc.date.available 2020-07-15T23:32:13Z -
dc.date.created 2020-02-11 -
dc.date.issued 2015-11-05 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/25139 -
dc.description.abstract The time-evolution of tide-induced transient eddies behind two headlands, off the southeastern tip of Korean Peninsula, is investigated using current mooring data and numerical modeling. It is shown that two transient eddies, with length scales of several hundreds of meters to 3 km, are generated by current shears resulting from flow past the headlands, and through a detailed comparisons with observations, can be accurately simulated with a numerical model. Even though the tidal elevation was still in flood phase for another 2-3 hours, the direction of the tidal flow at one mooring was observed to be opposite to the tidal wave propagation. This is due to the presence of a transient clockwise eddy which changes the current direction behind the headland. The successful reproduction of the time-evolving eddy motion at two different scales is shown to be dependent on the time- and spatially-varying lateral eddy viscosity. Based on harmonic analyses of the model results, trapped spatial phase patterns in the M2 tide and distorted co-amplitude lines around the headland are seen to be associated with the transient eddies, and strongly indicate that there are nonlinear interactions between the transient eddies and the tidal wave.ales of several hundreds of meters to 3 km, are generated by current shears resulting from flow past the headlands, and through a detailed comparisons with observations, can be accurately simulated with a numerical model. Even though the tidal elevation was still in flood phase for another 2-3 hours, the direction of the tidal flow at one mooring was observed to be opposite to the tidal wave propagation. This is due to the presence of a transient clockwise eddy which changes the current direction behind the headland. The successful reproduction of the time-evolving eddy motion at two different scales is shown to be dependent on the time- and spatially-varying lateral eddy viscosity. Based on harmonic analyses of the model results, trapped spatial phase patterns in the M2 tide and distorted co-amplitude lines around the headland are seen to be associated with the transient eddies, and strongly indicate that there are nonlinear interactions between the transient eddies and the tidal wave. -
dc.description.uri 2 -
dc.language English -
dc.publisher 한국해양학회 -
dc.relation.isPartOf 2015 한국해양학회 추계학술대회 -
dc.title Fine grid tidal modeling of transient tidal eddies behind two headlands off southeast Korea -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 30 -
dc.citation.startPage 30 -
dc.citation.title 2015 한국해양학회 추계학술대회 -
dc.contributor.alternativeName 강석구 -
dc.contributor.alternativeName 이재학 -
dc.contributor.alternativeName 김은진 -
dc.contributor.alternativeName 정경태 -
dc.identifier.bibliographicCitation 2015 한국해양학회 추계학술대회, pp.30 -
dc.description.journalClass 2 -
Appears in Collections:
Ocean Climate Solutions Research Division > Ocean Circulation & Climate Research Department > 2. Conference Papers
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse