• Title/Summary/Keyword: 남동해안

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한국 남동해안 경주-울산 경계지역의 해안단구 고고위면 지형 발달

  • 황상일;윤순옥;박한산
    • Proceedings of the KGS Conference
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    • 2003.05a
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    • pp.56-59
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    • 2003
  • 한반도 남동 해안은 중부 동해안의 정동진 지역과 더불어 많은 지형학자들에 의해 해안단구 지형발달에 대한 연구가 이루어져 왔다. 대보에서 방어진에 이르는 해안에서 해안단구는 크게 고위면, 중위면, 저위면으로 나누어지며, 이들은 다시 고위 I (H I)면, 고위II(H II), 중위면, 저위 I(L I)면, 저위II(L II)면으로 세분되었다. 특히 연구지역에서 북북동쪽으로 약 22km 떨어진 경주시 감포읍 대본리와 나아리에서는 고위면보다 더 높은 해발고도에서 고고위 I(HH I)면, 고고위II(HH II)면이 확인되었다(황상일ㆍ정혜경ㆍ윤순옥, 2000). (중략)

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Marine terrace and its implications to paleoenvironment during the Quaternary at Suje-ri - Suryum-ri of the East coast of Gyeongju, SE Korea (한반도 남동부 경주시 수제리-수렴리의 해안단구와 제4기 환경변화)

  • HWANG, Sangill;SHIN, Jaeryul;YOON, Soon-Ock
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.3
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    • pp.97-108
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    • 2012
  • During the last few decades, the ever-increasing knowledge of coastal morphogenic processes has made marine terraces the most recognizable, widespread and scientifically reliable records to determine both qualitatively and quantitatively the vertical movements that have affected the tectonically active coastal regions during the Quaternary. This study first aims to address the marine terrace records from Suje-ri to Suryum-ri along the coast of Gyeongju, SE Korea. Eight distinct flights of terraces, including HH YC, elevated up to 160 m above present sea level have been mapped along the coast of the study areas, and are designated $L_{II}$ to HH YC from the youngest to oldest. Based on the elevation of paleo-shoreline and inferred formation age for HH YC uplift rate since the middle Pleistocene has been estimated at 0.23 mm/year. Establishing the nature and timing of the uplift history derived from marine terraces provide a better understanding of neotectonic framework for explain enigmatic, complex landscape evolution in the Korean peninsula.

Fauna of Fish Collected by Otter Trawl at Coast off the Southeast Area of Geoje Island (저인망에 채집된 거제도 남동지역 해약의 어류상)

  • 윤창호;심재환
    • Korean Journal of Environment and Ecology
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    • v.14 no.3
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    • pp.167-174
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    • 2000
  • 거제도 남동 해안지역의 한려해상국립공원 보호구역에서 해상자원의 보존을 위한 기초자료를 확보하고자 거제도 일운면 예구리, 남부면 다대리 및 남부면 저구리 해얀지역에서 1999년 6월부터 2000년 3월까지 어류상 조사를 실시하였다. 조사를 통하여 확인된 어류는 총 16목 47목 69속 85 종 2, 789개체가 채집되었으며, 45종이 출현한 농어목(Perciformes), 10종씩 출현한 가자미목 (Pleuronectiformes) 및 횟대목(Scorpaseniformes)의대부분 저서생활을 하는 어류가 주로 채집되었다. 전체 조사기간 동안 가장 만하은 개체가수가 채집된 어류를 줄비늘치(Coelorhyncus multispinulosus) 458개체(16.4%)로 확인되었고 칠서대(Cynoglossus interruptus) 384개채(13.8%), 노랑촉수(Upeneus bensasi) 285개체(10.2%) 등의 순 이었다. 조사시간 6월에 가장 다양하고 풍부한 어류가 채집되었다.

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Structure of Upwelling off the Southease Coast of Korea (夏秀 韓國 南東海岸의 湧昇의 構造)

  • Lee, Jae-Chul;Na, Jung-Yul
    • 한국해양학회지
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    • v.20 no.3
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    • pp.6-19
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    • 1985
  • Hydrographic data and daily time series of longshore wind, sea level and sea surface temperature were used in order to explain why the upwelling effect in SST is especially prominent near Ulgi-Gampo although the sea level records along the whole southeast coast show a nearly uniform upwelling-downwelling response to wind. Regional difference in intensity of the wind-induced upwelling represented by the SST decrease is attributed to the combined influence of two factors; one is the baroclinic tilting of isotherms due to the East Korea Warm Current (EKWC) near the Ulgi-Gampo coast, the other is the topographic effects around the southeast coast. Baroclinic tilting effect of EKWC which is generally strongest near the coast of Ulgi to Gampo results in both of the shoaling of cold water and the westward trapping of the coldest bottom water over the shallower shelf rather than the deepest troough region off that coast regardless of the season. Therefore, becacse of the cold water ready for upwelling at the subsurface layer, SST responds very rapidly to the upwelling-favorable winds of summer only off the Ulgi-Gampo coast. Spreading isobaths from Pusan to Gempo can reinforce the upwelling of the cold bottom water and its westward trapping.

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Typhoon-surge Characteristics in Relation with the Tide-surge Interaction (조석-해일 비선형성과 관련된 태풍-해일 특성)

  • Kang, Ju Whan
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.27 no.1
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    • pp.25-37
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    • 2015
  • Tide-surge interaction during typhoon periods has been analyzed. The quantitative analysis of the Chi-square test shows that the interaction is most prominent at the Southwestern coast whereas the Western and the Southeastern regions are not. Patterns of surge type were divided into two groups, that is, steep type and mild type. Then, the interaction was turned out to be more prominent for mild type data. The weak interaction at the Western region is considered due to negative surges when the south-track typhoons attack. However, the interaction is remarkable when the west-track typhoons attack. The weak interaction at the Southeastern coast is, on the other hand, considered due to abundance of the steep type typhoons. Thus, inundation risk would be so apprehensive at that region because large-scale surge might be caused even at high tide.

Late Neogene and Quaternary Vertical Motions in the Otway Coast, Southeast Australia (I): Development and Geochronology of Quaternary Marine Terraces (호주 남동부 Otway 해안의 후기 신제3기 및 제4기 융기 운동(I): 제4기 해안단구 발달 및 지층서)

  • Shin, Jaeryul
    • Journal of the Korean earth science society
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    • v.33 no.6
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    • pp.519-533
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    • 2012
  • This study investigates a neotectonic context of the past 5 Ma for the Otway Ranges along the southern Victoria coast, SE Australia by evaluating the distribution and development of marine terraces along the mountainous coastal area. Uplift rate derived from low terrace deposits using OSL dating method is determined to evaluate the extent to which mild intraplate tectonism has the capability to influence the geomorphic evolution of continental interiors. This study also investigates the stratigraphic relationship between Quaternary marine terraces and Pliocene strandlines, which suggests a change of tectonic activity in the Late Neogene. The intensified tectonic response is well addressed in terms of an increase of the Australian intraplate stress level due to the change of relative motion and increased forces in the boundary between the Australian and Pacific plate.