Flows over crescentic bars under control of wave energy SCIE SCOPUS

DC Field Value Language
dc.contributor.author Lee, Hee Jun -
dc.contributor.author Kim, Mujong -
dc.contributor.author Do, Jong Dae -
dc.contributor.author Lim, Hak Soo -
dc.contributor.author Jeon, Chung Kyun -
dc.date.accessioned 2020-04-16T07:05:04Z -
dc.date.available 2020-04-16T07:05:04Z -
dc.date.created 2020-02-04 -
dc.date.issued 2020-02 -
dc.identifier.issn 0276-0460 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/408 -
dc.description.abstract Crescentic bars with wavelengths of 250-450 m were observed on a micro-tidal, open coast (Anmok Beach, Korea) to unravel the flow patterns over them under various wave conditions. The horn and bay environments of the crescents were distinguished to measure respective near-bottom flow conditions in the nearshore 3-8 m deep. Offshore waves were measured at a station about 18 m deep. The measurement duration spanned approximately one winter month and two stormy spells of several days each in summer and another winter comprising three different field campaigns. In addition, bar morphologies were measured with single- and multi-beam echo-sounders before and after each hydrodynamic measurement. Winter-storm waves yielded discernable bar movements offshore accompanied by a merging of small bays into a larger one. During the field campaigns, the bars moved alongshore by far less than a half of their wavelength. Hydrodynamic measurements show a suite of the flow patterns including onshore and offshore uniform flows and rip cell circulations. The flow patterns depend exclusively on the offshore significant wave height (H-s), or a non-dimensional parameter Hp=Hstan theta/hc, where h(c) is the water depth of the bar crest and tan theta the slope gradient. Therefore, the specific ranges of H-p could be given to individual flow patterns measured. These results are used to illustrate a coupled behavior of the bars and flows in a beach-state cycle forced by varying wave energies. -
dc.description.uri 1 -
dc.language English -
dc.publisher SPRINGER -
dc.title Flows over crescentic bars under control of wave energy -
dc.type Article -
dc.citation.endPage 114 -
dc.citation.startPage 101 -
dc.citation.title GEO-MARINE LETTERS -
dc.citation.volume 40 -
dc.citation.number 1 -
dc.identifier.bibliographicCitation GEO-MARINE LETTERS, v.40, no.1, pp.101 - 114 -
dc.identifier.doi 10.1007/s00367-019-00621-y -
dc.identifier.scopusid 2-s2.0-85075852746 -
dc.identifier.wosid 000499224600002 -
dc.type.docType Article; Early Access -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus CROSS-SHORE CURRENTS -
dc.subject.keywordPlus RIP-CURRENT -
dc.subject.keywordPlus BEACH MORPHODYNAMICS -
dc.subject.keywordPlus SEDIMENT TRANSPORT -
dc.subject.keywordPlus FIELD OBSERVATIONS -
dc.subject.keywordPlus SANDBAR MIGRATION -
dc.subject.keywordPlus VARIABILITY -
dc.subject.keywordPlus EVOLUTION -
dc.subject.keywordPlus DYNAMICS -
dc.subject.keywordPlus SYSTEMS -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Geology -
dc.relation.journalResearchArea Oceanography -
Appears in Collections:
Marine Environmental & Climate Research Division > Marine Active Fault Research Unit > 1. Journal Articles
Marine Domain Management Research Division > Marine Disaster Research Center > 1. Journal Articles
East Sea Research Institute > East Sea Environment Research Center > 1. Journal Articles
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