- Volume 9 Issue 3
A continuous monitoring of textural characteristics of surface sediments, sedimentation rates and beach profile was carried out to investigate the seasonal variations of sedimentary processes in the Imjado beach, southwestern coast of Korea for two years. The beach profiles consist of steep beach face and relatively flat middle and low tide beaches. The slope of the beach face increases in summer and decreases in winter, in good accordance with the standard beach cycle. Ridge and runnel systems are well developed in the middle and low tide beaches during the summer, but these structures are replaced by mega-ripples during the winter. The sediments are fining southward as well as landward. The mean grain-size tends to be increasingly coarser during seasons of autumn and winter on the north beach and during seasons of winter and spring on the south one. In addition, the sediments are eroded on the north beach and accumulated on the south one as a whole. These are probably due to southward transportation of the sediments as long-shore current (NE-SW) runs around the coastal line of the beach. However, the seasonal variations in accumulation rates are very complex and irregular. It is considered that the Imjado beach represents in non-equilibrium state, as a result of coastal and submarine topographic changes by artificial agents and sea-level uprising associated with global warming.
Tidal beach;Sedimentary processes;Seasonal variations;Accumulation rates;Ridge and runnel systems;Beach profile
- 석사학위논문, 전남대학교 임자도 주변 해역의 퇴적환경 류상옥
- 해양연구 v.18 한국 서해중부 해변에서의 퇴적작용의 계절변화 추용식;권수재;박장준;박용안
- Trans. Am. Geophysics. Union v.32 The relationship between sand size and beach face slope Bascom,W.H.
- Mar. Geol. v.161 Wave spray-induced sand transport and deposition during a coastal storm, Magilligan Point Cooper,J.A.G.;D.W.T.Jackson
- Z. Geomorph. v.8 A morphogenic approach toward shorelines Davies,J.S.
- Coastal sedimentary environments Davies,R.A.
- J. Sediment. Petrol. v.42 Comparison of ridge and runnel systems in tidal and nontidal environments Davies,R.A.;W.T.Fox;M.O.Hayes;J.C.Boothroyd
- J. Sediment. Petrol. v.27 Brazos river bar:A study in the significance of grain size parameters Folk,R.L.;W.C.Ward
- Petrology of sedimentary rocks Folk,R.L.
- Sieve analysis;Procedures in sedimentary petrology Ingram.R.L.;Carver,R.E.(ed.)
- Jour. Geol. v.68 Beach cycles related to tide and local wind wave regime Inman,D.L.;J.Filloux
- Beaches and coasts(2nd ed.) King,C.A.M.
- Monthly weather report Korea Meteorological Adminstration
- Mar. Geol. v.157 Sedimentary processes of fine-grained material and the effect of seawall construction in the Daeho macrotidal flat-nearshore area, northern west coast of Korea Lee,H.J.;Y.S.Chu;Y.A.Park
- Mar. Geol. v.171 The morphodynamics of megatidal beaches in Normandy Levoy,F.;E.J.Anthony;O.Monfort;C.Larsonneur
- Mar. Geol. v.129 Morphodynamics of meso-and macrotidal beaches:Exemples from entral Queensland Masselink,G.;B.Hegge
- Mar. Geol. v.172 Seasonal changes in beach morphology along the sheltered coastline of Perth Masselink,G.;C.B.Pattiaratchi
- Jour. Coastal Res. v.9 The effect of tide range on beach morphodynamics and morphology:A conceptual beach model Masselink,G.;A.D.Short
- Jour. Coastal Res. v.12 Beach Erosion and Sand Transport at Hunting Island, South Carolina, USA May,J.P.;E.W.Strapor
- Basic research report on nearshore environments of Korea, Seoul National Geography Institute
- Beach Erosion Board Tech. Memo no.20 Beach cycles in southern California Shepard,F.P.
- Submarine Geology(2nd ed.) Shepard,F.P.
- Mar. Geol. v.48 Wave, beach and dune interactions in southeastern Australia Short,A.D.;P.A.Hesp
- Mar. Geol. v.167 Sediment resuspension on beaches:response to breaking waves Voulgaris,G.;M.B.Collins
- Mar. Geol. v.50 Morphodynamics of a macrotidal beach Wright, L.D.;P. Nielsen;A.D. Short;M.O. Green
- Geosci. Jour. v.5 A seasonal model of surface sedimentation on the Baeksu open-cost intertidal flat, southwestern coast of Korea Yang,B.C.;S.S.Chun