A Study of Decadal Sedimentation Trend Changes by Waterline Comparisons within the Ganghwa Tidal Flats Initiated by Human Activities SCIE SCOPUS

DC Field Value Language
dc.contributor.author Lee, Yoon-Kyung -
dc.contributor.author Ryu, Joo-Hyung -
dc.contributor.author Choi, Jong-Kuk -
dc.contributor.author Soh, Jae-Gwi -
dc.contributor.author Eom, Jin-Ah -
dc.contributor.author Won, Joong-Sun -
dc.date.accessioned 2020-04-20T07:43:26Z -
dc.date.available 2020-04-20T07:43:26Z -
dc.date.created 2020-01-28 -
dc.date.issued 2011-09 -
dc.identifier.issn 0749-0208 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/3817 -
dc.description.abstract This study presents results of a human impact investigation of large-scale construction projects on sedimentation trend and morphologic changes in the Ganghwa tidal flats over 10 years using time-series waterlines from Landsat thematic mapper/enhanced thematic mapper. Waterlines were extracted from remotely sensed images. These images are useful for studying changes in coastlines and tidal flat topography. A reference digital elevation model (DEM) was constructed; then actual waterlines from satellite images were compared with modeled waterlines from the reference DEM. Systematic comparison with respect to horizontal differences between the two waterlines provided information on local conditions of sediment trends within the study area. Seaward or landward migration of waterlines was a clear indication of the change in sedimentation pattern. Deposition has been dominant at the main channel between the southern Ganghwa and the Yeongjong tidal flats, whereas erosion has been dominant at the eastern lower tidal flat. These sedimentation patterns complied with field observations along two survey lines and with the result from depth-sounding data. Deposition narrowed the channel and created a slightly more meandering shape. A hydrodynamic model anticipated a significant change of ocean current as a result of the coastal construction projects, and the modeling result matched well in terms of current conditions with the present sedimentation pattern analyzed by waterline comparison. A series of coastal construction projects in this area clearly affected the local hydrodynamics of tide and currents to a large extent and resulted in the changes of sedimentation trends during a decade, and it is necessary to keep the monitoring area to understand long-term impacts initiated by human activities within a relatively short period. Although it was not possible to estimate the total volume of sediment transportation with this method, trends of sedimentation processes within tidal flats can be effectively deduced. -
dc.description.uri 1 -
dc.language English -
dc.subject LANDSAT TM DATA -
dc.subject SAR IMAGES -
dc.subject EXTRACTION -
dc.subject COASTLINE -
dc.subject ESTUARY -
dc.subject KOREA -
dc.subject BAY -
dc.title A Study of Decadal Sedimentation Trend Changes by Waterline Comparisons within the Ganghwa Tidal Flats Initiated by Human Activities -
dc.type Article -
dc.citation.endPage 869 -
dc.citation.startPage 857 -
dc.citation.volume 27 -
dc.citation.number 5 -
dc.identifier.bibliographicCitation JOURNAL OF COASTAL RESEARCH, v.27, no.5, pp.857 - 869 -
dc.identifier.doi 10.2112/JCOASTRES-D-10-00150.1 -
dc.identifier.scopusid 2-s2.0-80052215685 -
dc.identifier.wosid 000294523800007 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus DIGITAL ELEVATION MODEL -
dc.subject.keywordPlus LANDSAT TM DATA -
dc.subject.keywordPlus SAR IMAGES -
dc.subject.keywordPlus INTERTIDAL AREAS -
dc.subject.keywordPlus EXTRACTION -
dc.subject.keywordPlus COASTLINE -
dc.subject.keywordPlus ESTUARY -
dc.subject.keywordPlus KOREA -
dc.subject.keywordPlus BAY -
dc.subject.keywordAuthor Waterline comparison -
dc.subject.keywordAuthor Ganghwa tidal flat -
dc.subject.keywordAuthor coastal human activities -
dc.subject.keywordAuthor sedimentation trends -
dc.subject.keywordAuthor hydrodynamic modeling -
dc.relation.journalWebOfScienceCategory Environmental Sciences -
dc.relation.journalWebOfScienceCategory Geography, Physical -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Environmental Sciences & Ecology -
dc.relation.journalResearchArea Physical Geography -
dc.relation.journalResearchArea Geology -
Appears in Collections:
Marine Environmental & Climate Research Division > Ocean Circulation Research Center > 1. Journal Articles
Ocean Research, Operations & Support Department > Korea Ocean Satellite Center > 1. Journal Articles
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