• Title/Summary/Keyword: Korea west coast

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Sedimentology of the intertidal flat sediments in the Seosan Bay, west coast of Korea and its implication on the Holocene sea level changes (韓國 西海岸 서산만에 發達한 一部 潮間帶 堆積層에 대한 堆積學的 硏究와 第四紀 海洋地質學的 考察)

  • Park Yong-Ahn;Lee Il-Sang
    • The Korean Journal of Quaternary Research
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    • v.1 no.1
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    • pp.21-34
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    • 1987
  • In the present study area, a part of intertidal flat in the Seosan Bay, west coast of Korea, characteristic three dominant tidal sedimentary facies and their related several typical sedimentary structures are described, Furthermore, a possible interpretation about the time stratigraphic developments of these intertidal deposits is suggested by introducing very late Quaternary (Holocene) sea-level rise in Korean Seas.

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Technology Assessment for Design of an Environment-Friendly Vehicle for Tidal Flat Zone (친환경성 갯벌차량 설계를 위한 기술 분석)

  • Yeu, Tae-Kyeong;Hong, Sup;Kim, Hyong-Woo;Choi, Jong-Su;Lim, Dong-Il
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2006.11a
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    • pp.257-260
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    • 2006
  • West coast of Korea belongs to the five largest tidal-flat zones in the world. Aiming at the efficient management and preservation of the eco-system and the enhancement of the bio-productivity of the tidal-flat zones, development of a environment-friendly vehicle for tidal-flat area is being attempted. This paper deals with the description of the characteristics of the tidal-flat zones of west coast of Korea, the technology assessment of the related products in the ATV(All-Terrain Vehicle) market, the demand assessment for the resident people.

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A new record of the Axiid shrimp Balssaxius habereri (Balss, 1913) (Crustacea: Decapoda: Axiidea) in Korean waters

  • Kim, Jung Nyun;Choi, Jung Hwa;Im, Yang Jae;Jo, Hyun-su
    • Fisheries and Aquatic Sciences
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    • v.19 no.9
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    • pp.36.1-36.3
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    • 2016
  • Balssaxius habereri (Balss, 1903) has been newly reported in Korean waters. This species was previously known from the Pacific coast of northern Japan, Korea Strait, Yellow Sea, and Japanese coast of the East Sea. Specimens were collected from western Jeju Island using otter trawls at depths of 65-85 m. Regarding Korean axiid shrimps, a single species, Boasaxius princeps (Boas, 1880), previously known as Axiopsis princeps in Korea, has been recorded. B. habereri is easily distinguished from B. princeps as it does not have tufts of setae on its body and males do not have the first pleopod. Morphological descriptions and color photos of the specimens are provided.

Tidal Sand Banks in the West Coast of Korea (우리나라 서해안의 조석사주)

  • 최병호
    • Water for future
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    • v.18 no.3
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    • pp.235-241
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    • 1985
  • The predictions of the local and regional sand transport of the offshore tidal sand banks tn the west coast of Korea, east of the Yellow San have been performed on the basis of diagrammatical method suggested by Kenyon et al(1981). There is general agreements between these predictions and the earlier predictions(Choi, 1983) of net regional sand transport paths from the numerical simulation of maximum bottom stress vector during the semidiurnal period due to m2 and m4 tides. Further detailed investigations are proposed for the study of Choongang Chontoe where the predicted net sand transport direction is to the dredged navigation channel.

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Wet/dry Repetitions of Centennial Scale Reconstructed by Inorganic Chemistry of the Mid-Holocene Hwayang Wetland in the West Coast of Korea

  • Yang, Dong-Yoon;Kim, Ju-Yong;Nahm, Wook-Hyun;Yi, Sang-Heon;Kim, Jin-Kwan;Kim, Jeong-Chan;Lee, Jin-Young
    • The Korean Journal of Quaternary Research
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    • v.21 no.2
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    • pp.69-73
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    • 2007
  • Inorganic geochemical and mineralogical analyses from the trench sediments of the Hwayang wetland were carried out to verify the wet/dry conditions during 6000 - 5000 yr BP and abnormal event of 6300 yr BP of Korean west coast. Lithostratigraphy, mineralogy and major element concentrations of the sediments of the trench indicate that during 6000 - 5000 yr BP, a wet/dry conditions might be repeated at an interval of 200 years. Carbonate minerals precipitated with the decrease of water depth in the lake or wetland after about 6000 yr BP. On the other hand, the sediments coarser in mean grain size and larger in standard deviation were corresponded with periods of 6300 yr BP and 6230 yr BP. Especially, such a feature of grain size distribution of 6300 yr BP appears in other wetlands situated in the west coast, e.g., Hwangsan wetland and Cheollipo coastal wetland. During the period, the coarse sediments seem to have been delivered by a high energy like storming.

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Ecological Study of the Marine Algal Community at the Coast of Taean Thermal Power Plant, Korea (태안화력발전소 주변 해조군집의 생태 연구)

  • Yu, Jong-Su;Kim, Yeong-Hwan
    • ALGAE
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    • v.18 no.4
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    • pp.311-320
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    • 2003
  • The community structure of benthic marine algae was investigated at Taean Thermal Power Plant and other places around Taean Peninsula, the west coast of Korea. Total of 100 species including 3 Cyanophyta, 14 Chlorophyta, 18 Phaeophyta, and 65 Rhodophyta were identified. The number of species was highest with 78 species at the Power Plant intake, followed by 61 at the discharge, 56 at Bunjeondo, and 50 at Maoe. It was noteworthy that a subtropical species Caulerpa okamurae was collected at the intake in autumn and it was the first observation in the west coast of Korea. The pattern of vertical algal distribution showed Gloiopeltis furcata occurred in the upper intertidal zone, Sargassum thunbergii and Corallina spp. in the middle and lower zone and Enteromorpha spp. in the lower middle zone. These were all dominant species except for Enteromopha spp., which was subdominant species. Other subdominant species were Chondrus ocellatus and Neorhodomela aculeata. The average diversity indices were between 0.70 and 1.20 at each area based on their dry weight. The similarity index was 0.79 between the algal flora of this study and that of 1987, indicating that the condition of the benthic environment remained unchanged since then. This area maintained its environmental quality, so the algal community remained same with similar structure. This study area seemed a suitable place for long term monitoring of the benthic environment where industrial facilities such as a power plant might affect the benthic algal community.