• Title/Summary/Keyword: 해안지형

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The Coastal Geomorphology in General of Korea - Research Trends and Issues - (한국의 지형학 연구 - 해안지형 일반 -)

  • Kim, Sung Hwan
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.1
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    • pp.1-15
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    • 2012
  • The purpose of this study is to review research trends and issues of coastal geomorphology in general of Korea, which is divided into two periods; the former and later periods of 1990s when The Korean Geomorphological Society was established. In this study, coastal geomorphology in general refers to the landforms except tidal flats and coastal terraces. The descriptive statistics of research papers published in 5 major geography journals since 1990s were computed and these papers were classified according to their main subjects. The methodology for coastal landform study was analyzed by sub-fields of landform change and sediment analysis. The study of coastal geomorphology in Korea started from around 1970s and has progressed significantly in terms of the scope and the number of papers published since 1990s. There is few paper published in 1990s on coastal geomorphology in general, but so many research has achieved and came to be the major part of coastal geomorphology study since 2000s. Further methodology is necessary for morphodynamics study in the future.

A Geomorphology on the Ulleungdo (울릉도 지형지)

  • Kwon, Dong-Hi
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.4
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    • pp.39-57
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    • 2012
  • The volcanic edifice of Ulleungdo is largely divided into a shield volcano underwater and a tholoide above seawater. The geological features of the volcano above seawater are basically alkali volcanic rocks that are further divided into five geological strata: agglomerates and tuffs trachyte and phonolite trachytic pumice trachyandesite, and sedimentary layer. The topography of Ulleungdo consists of volcanic landform on the whole, and such volcanic landform is weathered and eroded into various weathering landform, stream landform, coastal landform, structural landform, etc. Major volcanic topography includes caldera basin, central cone, and columnar joint, whereas weathering topography features, tafoni, gnamma, tor, weathered cave, talus, etc. In major coastal topography are sea cliff, wave-cut platform, sea stack, sea arch, sea cave, shingle beach, coastal terrace, etc. For stream topography, its development is minimal except for waterfalls.

A Landform Survey in Transborder Region Using the RS Data - In case of Goseong Region, Kangwon Province - (원격탐사자료를 활용한 접경지역 지형조사 - 강원도 고성군 송현리 일대를 사례로 -)

  • Seo, Jong-Cheol;Park, Kyeong
    • Journal of the Korean association of regional geographers
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    • v.9 no.3
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    • pp.385-394
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    • 2003
  • Authors tried to classify landforms of civilian-restricted trans-border coastal region of the East Sea by using both field survey and remote sensing data including IKONOS images and digital maps. As a result, authors can draw the boundaries of landform units on satellite images and classify landforms effectively. Typical landforms of undisturbed depositional coastal area such as coastal sand dune, sand bar, lagoons, and tombolo are found within the study area. Also, riverine wetlands and estuarine wetlands are readily discernable on both satellite image and field survey. Even though landforms within the study area are relatively small, they are so dynamically connected that their preservation value is very high.

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Characteristics of the coastal landforms in Yeonpyeong Island (연평도의 해안지형 경관 분석)

  • Seo, Jong-Cheol
    • Journal of the Korean association of regional geographers
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    • v.19 no.2
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    • pp.223-233
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    • 2013
  • Yeonpyeong Island, an island of Ong-jin County, is a very important and meaningful area in terms of its geo-politics and natural environment. But in spite of well preserved natural environment, because of limited access and security risk, there were little researches. In this sense this study would be meaningful for inquiring into the regional geomorphology of Yeon-pyeong Island. The major findings of this study are as follows. 1) 12 sites among 20 sites was evaluated 1st grade, and this means that geomorphic value of Yeon-pyeong Island is very excellent. 2) Coastal landforms of Yeon-pyeong Island are classified three major types which are rocky coast which consist of wave-cut platform and sea cliffs, sand or shingle beaches and coastal plain in the embayment area, and tidal flat areas and small uninhabited islands. 3) Cross sectional shape of Yeon-pyeong Island is asymmetric, since coastal erosion of island concentrate on the northern and western shore. 4) Quality and value of tidal flats will be deteriorate unless the dyke construction is stopped.

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협제동굴지대의 동굴지형연구

  • 강상배;홍현철
    • Journal of the Speleological Society of Korea
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    • v.25 no.26
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    • pp.82-130
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    • 1991
  • 이 동굴지대의 지형을 개관하면 한라산서북사면 기슭의 해안저평지대라고 하겠다. 주로 해안사구가 전개되고 있는 솔밭이 많은 지형이다. 우선 분포 지역을 살펴보면 북서 해안의 한림읍 금릉리 동쪽으로부터 협재리에 이르는 해안인데, 내륙으로 2.7km까지 사구가 발달되어 있고, 애월읍 곽지리 해안에도 약간 분포하고 있다.(중략)

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A Status of Distributions and its Characteristics of the Geomorphological and Geological Landform Resources in Taeanhaean National Park (태안해안국립공원 해안지형과 지질 자원의 분포 현황과 특성)

  • Seo, Jong Cheol
    • Journal of The Geomorphological Association of Korea
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    • v.26 no.4
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    • pp.97-106
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    • 2019
  • This study aims to investigate geomorphological and geological landscapes in the Taeanhaean National Park to ensure they are well-preserved. This study discovered 390 geomorphological and geological landform resources distributed in the coastal zone of Taeanhaean National Park. Representative geomorphological and geological landforms include : sea cliffs, sea caves, wave-cut platforms, sea-stacks, pebble beaches, sand beaches, tidal flats, coastal dunes, coastal dune wetlands and folds (or micro folds) landforms. Deposition landforms are developed more and erosion and weathering landforms are less on the land zone than island zone. These landform resources vary from district to district and can be developed for geo-tourism resources. Combined efforts from the Taeanhaean National Park authorities and residents are essential to manage ecological programs using geomorphological and geological resources.

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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The design load factor of road structure considering long-term coastal geographic change (해안지형의 장기적 변화에 따른 도로 구조물 설계하중 고려 요소에 관한 연구)

  • Bae, Sun-Hak;Kang, Sang Hyeok
    • Journal of The Geomorphological Association of Korea
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    • v.20 no.1
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    • pp.75-83
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    • 2013
  • Human-induced modifications in coastal area may cause strong geomorphic responses by disturbing sediment supply, transport and deposition regimes. Morever, engineering structure have been built to stabilize coastal change, these effort impact on other morphologic change. In case of coastal area, there are lack of sediment yield data. This study focus on the tendency of long-term shoreline change, estimate method od sediment discharge which is a major factor of coastal change and adduced to way for considering design load influenced to coastal road.

The sediment runoff and geographic change around coastal structure using Korean modern map (근세 지도를 이용한 토사유출 및 항만구조물 주변의 지형변화 분석)

  • BAE, Sun-Hak;KANG, Sang Hyeok
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.3
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    • pp.135-142
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    • 2012
  • The map drawn on a scale of 1 to 50,000, modern Korea map drawn on a scale of 1 to 50,000 made by Japanese colonial era in 1910s, is the first topographical map using modern technical method. The map has been mainly used in human activities and geographic viewpoint, recently it is available on various field with recognizing high accuracy. It is especially expected that the map will provide us with lots of information on long-term change of topography in field of coastal area which is built on coastal structure. This study presents a method for analyzing before and after geographic change of coastal structure in independent drift sand system. The reference point to analyze long-term coastal geographic change was selected the map of 1910s.

Detection and Analysis of Post-typhoon Three-dimensional Changes in Haeundae Beach Topography using RS and GIS Technology (RS.GIS 기법을 활용한 태풍 전후 해운대 해빈지형의 3차원 입체변화 탐지 및 분석)

  • Hong Hyun-Jung;Choi Chul-Uong;Yang Ji-Yeon;Kim Yeon-Soo
    • Proceedings of the KSRS Conference
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    • 2006.03a
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    • pp.365-368
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    • 2006
  • 국내 해빈지대의 경우, 인위적 개발과 기상학적 현상, 특히 태풍의 영향으로 다량의 모래가 유실되고 있다. 해안침식 종합대책 수립 및 사업실행에 있어 해안지형에 관한 정확한 자료 구축은 필히 요구된다. 그러나 현재까지, 연안에 관한 정확한 측량작업이 실행되지 않은 채, 모래 유실에 대한 문제 제기나 일시적 대책 마련에 급급하고 있다. 그러므로 본 연구에서는 연구지역을 해운대 해빈지역으로 선정하고, GPS 측량기법을 이용하여 해안지대의 정확한 공간자료를 구축하였으며, 태풍으로 인한 3차원 지형변화를 정밀하게 분석하였다. 연구결과, 태풍의 영향으로 호안벽 근처 해빈고도는 증가하였으나, 강풍과 북북동의 정온입사파로 $2320m^3$ 가량 해빈이 침식하였다. 특히 동측 해빈지대에서 침식현상이 뚜렷하게 발생하였다. RS, GPS, GIS 기법을 기반으로 해안지대의 정확한 공간DB 구축과 지형변화에 관한 정량적정성적 분석 작업은 국내 해안침식에 관한 체계적이며 효과적인 대책을 수립하는데 도움을 줄 수 있을 것으로 사료된다.

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