• 제목/요약/키워드: Coastal landforms

검색결과 29건 처리시간 0.019초

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

  • 서종철
    • 한국지형학회지
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    • 제26권4호
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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.

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

  • 서종철;박경
    • 한국지역지리학회지
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    • 제9권3호
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    • pp.385-394
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    • 2003
  • 현장 접근이 제한되어 있는 동부해안 접경지역의 지형조사 과정에서 IKONOS 위성영상과 수치지도 등의 원격탐사자료와 현장조사 자료를 이용하여 지형분류를 시도하였다. 조사결과는 위성영상자료를 활용하여 조사지역 전체를 면사상의 단위지형으로 분류하였다. 조사지역에서 나타나는 특징적인 지형은 해안사주, 해안사구, 석호, 육계사주와 육계도 등으로 구성된 해안지형과 하천습지와 석호, 하구습지 등으로 구성된 습지지형이다. 이 일대의 지형은 규모에 비해 지형요소의 유기적인 안정성이 높아 그 가치가 높게 평가된다.

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지역개발과 주민생활이 환경에 미치는 영향 -충청남도의 비치와 해안사구를 사례로- (The Impact of the Developments and Dwellers on the Beach and Sanddune Characteristics in the Chungcheong-Namdo Province)

  • 강대균
    • 환경영향평가
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    • 제12권4호
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    • pp.291-302
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    • 2003
  • This paper examined the impacts of the regional developments and dwellers behavior on the Seacoast. Seacoast features a variety of landforms which are created by the action of waves and tidal flows. The coastal landforms are found mainly in the interface between land and sea. Although erosional landforms constitute prominent landscape features as sea stack, sea arch, and rock cliff do, it is nonetheless the depositional features such as beaches, tidal flats, offshore bars, deltas, sanddunes, and coastal plains that have various ramifications for human communities. Among these, beaches and coastal sanddunes are special in that their formation is attributable to the combined action of waves, tidal flows, and winds. The main line of discussion in this dissertation is concerned with the transformation of group of beaches sanddunes along the coastline of Chungcheong-Namdo Province. To some extent, the erosion of coastal dunes has been a global phenomenon. The degradation process occurs most actively when the spring tides attack beaches, berms, and foredunes. Also involved in the transformation of coastal dunes are factors of human agency. The extent, speed, and pattern of their morphological changes are a function of land-use pattern. The reclamation of swale and the exploitation of sands as construction material and silica sand, for example, ruin the feature of coastal dunes.

비인만의 해안사구를 활용한 경관생태적 현장학습 프로그램 개발 (Research of landscape ecological field-trip learning program development for students at BiIn Bay, Seocheon in South Chung-chong coastal environment)

  • 강대균
    • 한국지형학회지
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    • 제26권1호
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    • pp.121-131
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    • 2019
  • The coast of BiIn Bay, Seocheon, is the potential site for the field-trip learning program. This article is written in the viewpoint of geographical and environmental education. In this study, it is tried to describe geomorphological landscapes of BiIn Bay Seocheon-gun relating with it's physiognomy, based on the Dasa-ri and Songrim-ri coastal sanddunes and the like. Although landforms like tidal flats and rock cliff constitute prominent landscape features in this area, other features such as beaches, coastal dunes, and coastal plains have various ramifications for human communities. Tidal flats, beaches and coastal dunes are formed by the combined actions of longshore current, tidal flows, waves and winds. To some extent, the erosion of sandy coast has been a global phenomenon. Anthropogenic impacts are involved in the transformation of landform. Most favorable field-trip course of BiIn Bay is from Songrim-ri through Dasa-ri and Shinhap-ri to Maryang-ri. This program about coastal landforms in BiIn Bay will contribute not only for educational meanings but also for satisfying the student' curiosity and interest. Also, this field-trip learning program will be suitable for over 4th grade elementary school students and middle school students.

백령도 가을리에 분포하는 고(古)해안사구층의 특성과 형성 시기 (Sedimentary Characteristics and Depositional Ages of Paleo-sand Dunes in Gaeul-ri, Baengnyeongdo Island)

  • 신원정;김종연;이재호
    • 한국지형학회지
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    • 제27권2호
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    • pp.47-64
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    • 2020
  • The Baengnyeongdo-island, located at the northernmost point of the west coast, has developed several coastal landforms. Although the coastal landforms of Baengnyeongdo-island are widely used as a tourism resource, a lot of academic research has not been conducted. In this study, particle size analysis, XRF, and OSL age dating were performed on the BR sandy deposits to find out the formation of coastal sand dunes on Baengnyeongdo-island. Based on the physicochemical properties, the BR section was divided into three parts; BR-A, BR-B and BR-C. First, about 56ka, which corresponds to the MIS 3, fine sand was deposited and forms the BR-C section. Second, the BR-B which located middle part of BR section, showed reversed age stratigraphy. The BR-B was interpreted as reworked sediments based on sedimentary facies and chemical weathering intensity. And, the BR-A composed of fine and medium sands was formed in middle Holocene. This research has significance in that it finds out the paleo sand dunes formed in Pleistocene. This study can contribute to understanding coastal sand dune development on the west coast.

디지털 사진측량에 의한 해안사구의 고도값 측정 (The Measurement of Coastal Sand Dune's Height using Digital Photogrammetry)

  • 김민호;유근배;조봉환
    • Spatial Information Research
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    • 제10권2호
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    • pp.317-329
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    • 2002
  • 인간의 삶에 많은 영향을 끼치고 있는 해빈, 해안사구 등과 같은 해안지형은 역동적으로 변화하고 있고, 이에 대한 연구가 진행되고 있다. 해안지형의 변화량을 측정하기 위해 기존에는 측량기기에 의한 수준측량방법을 주로 이용해왔다. 이 연구에서는 기존에 고려되지 않았던 근거리 사진측량기법으로 해안사구 단면에 대한 고도값을 계산하였다. 즉 번들조정과 공선조건식의 역변환을 통해 비측량용 디지털 사진기로 촬영된 지상사진의 입체쌍으로부터 미지점의 고도값을 계산하였다. 6개의 기준점을 이용하여 번들조정을 수행하였고, 미지점 고도갈의 계산값과 실측갈을 비교한 결과 10cm 이내의 오차가 나타났다. 일반적으로 해안사구 지형은 모래질의 연약지반으로 실측시 수준척이 견고하게 고정되지 않고, 좁은 지역을 측량할 경우 인접지점에 교란현상을 발생시켜 측정오차가 크게 나타날 수 있다. 해안사구의 고도값을 측정하는 연구에서 디지털 사진측량방법은 기존의 수준측량이 갖는 문제점을 극복하면서 이를 대체할 수 있을 것이다.

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태안 의항 해안의 홀로세 해수면 변화와 지형 형성과정 (Holocene Sea Level Change and Geomorphic Process of the Uihang Coast in Taean)

  • 이광률
    • 한국지형학회지
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    • 제28권4호
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    • pp.31-39
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    • 2021
  • Gaemok, the place name of Uihang-ri, Sowon-myeon, Taean-gun, Chungnam, indicates a tombolo. This study estimated the Holocene sea level change and development process of the coastal landforms of the Gaemok and Hwanyeong Tombolos in the Uihang coast. The tombolos seemed to form at approximately 3.4 ka and the average sea level at that time was estimated to be higher than that of the present by ca. 1 m. The Gaemok area was a separated island from the Taean peninsula during the Holocene Climatic Optimum. At approximately 3.4 ka when the sea level rose again after the fall, the Gaemok area was tied to the land by formation of the Gaemok and Hwanyeong Tombolos. The falling or fluctuating sea levels after 3.4 ka have shaped the present coastal landforms.

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

  • 서종철
    • 한국지역지리학회지
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    • 제19권2호
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    • pp.223-233
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    • 2013
  • 본 연구에서는 지정학적인 측면에서 뿐만 아니라 자연환경적인 측면에서도 중요성을 가지는 연평도에 대해 해안지형을 중심으로 지형과 경관을 분석하고자 하였다. 연평도는 접근성이 제한되어 있고 군사적인 위험 때문에 자연 환경은 잘 보존되어 있지만 기존의 연구 성과는 미미한 실정이다. 본 연구는 4일간의 현지 답사와 실내 조사의 결과를 토대로 한 것이며, 연구 결과는 다음과 같다. 1) 20개 주요 조사 대상 지형 중 60%인 12개가 1등급으로 판정되어 전체적으로 연평도의 지형적인 가치는 매우 우수한 것으로 판단된다. 2) 연평도는 해안지형은 파식대와 해식애가 특징적인 암석 해안, 만입부에 형성된 퇴적 해안과 해안 충적지, 갯벌지대와 부속 도서 등의 3가지 지형시스템으로 구분할 수 있다. 3) 연평도의 지형은 파랑의 영향으로 인해 북쪽과 서쪽이 높고 동쪽과 서쪽이 낮은 비대칭형이다. 4) 최근 연평도 남단의 갯벌지대에서 행해지는 각종 공사는 우수한 갯벌의 질을 저하시킬 것이다.

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지리교과 지형 편수용어 개선을 위한 모색 (Revision of Geomorphological Terms in the Reference Guide for Geography Textbook Compilation)

  • 김태호
    • 한국지형학회지
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    • 제27권1호
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    • pp.103-115
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    • 2020
  • This study has analyzed and revised the geomorphological terms in the Reference Guide for Geography Textbook Compilation issued by the Ministry of Education in 2017. The current geography glossary is composed of 1,150 terms of which 24.4 percent are geomorphological one. They also amount to 52.2 percent of the terms registered in the physical geography glossary. The number of terms in coastal landforms is the maximum of fifty-eight, while the one in weathering landforms is the minimum of six. This suggests a large difference in the number of terms among landform types originating from varying geomorphic processes. A lot of ordinary words are included in the geomorphology glossary. Since they have been already registered in the Korean Standards Dictionary which is another reference guide for textbook compilation, it is appropriate to delete them out of the geomorphological terms. The geomorphology glossary also contains difficult terms written in Chinese characters, inappropriate terms and even incorrect terms which are likely to lead to misconception on landforms. The revised glossary consists of 284 geomorphological terms in which 101 terms are newly added after taking all the problems into consideration.