Jongmin Byun

Abstract The processes involved in the development of high‐altitude, low‐relief areas (HLAs) are still poorly understood. Although cosmogenic nuclides have provided insights into the evolution of HLAs interpreted as paleo‐surfaces, most studies focus on estimating how slowly they erode and thereby their relative stability. To understand actual development processes of HLAs, we applied several techniques of cosmogenic nuclides in the Daegwanryeong Plateau, a well‐known HLA in the Korean Peninsula

지형학 관련 답사는 지형경관이 수려하거나 지형학 이론을 모식적으로 설명할 수 있는 장소를 위주로 수행되어왔다. 사범대학의 지형답사는 학생 삶의 공간에서 지형을 인지하고 지형학 지식을 스스로 구성해 나가며 지형학 지식이 자신 삶에 필요한 것임을 느낄 수 있도록 일상생활 공간, 즉 도시의 지형경관을 인지하는 것에서 출발할 필요가 있다. 여기서는 학교 인근의 도시 지형 이해에 초점을 둔 지형답사 프로그램을 제안하였다. 서울의 주변부 관악산 도림천 상류 유역을 대상으로 진행된 이 프로그램은 인간에 의한 변형이 적은 지역과 도시화된 지역을 비교하도록 구성되었고 학생이 도시화 이전의 지형경관을 복원하는 활동을 포함하고 있다. 또한 답사는 일상의 지형경관을 이해하는데 주안점을 두었으며, 100년 이내의 지형학적 현상과 인위적인 배수 체계를 관찰하는 장소를 포함했다. 참가 학생은 도시의 지형경관을 이해하고 나아가 도시 환경문제와 자연재해를 지형학적 맥락에서 해석하게 되었다. 따라서 이 프로그램은

Along the eastern margin of the Korean Peninsula, a coastal mountain range spanning over 800 km with summits above 1500 m faces the East Sea (or Sea of Japan), the back-arc sea behind the Japanese Islands. Two contrasting hypotheses exist regarding the tectonic history of this coastal mountain range: long-lasting and progressive uplifts from the Early Tertiary to the Late Quaternary, and a short and intensive uplift during the Early Miocene. However, to date, no consensus has been reached. Here,

Research Article| July 01, 2017 Small profile concavity of a fine-bed alluvial channel Jongmin Byun; Jongmin Byun 1School of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea2Department of Civil Engineering and Environmental Sciences, Korea Military Academy, P.O. Box 77-2, Hwarang-ro, Nowon-gu, Seoul 01805, South Korea Search for other works by this author on: GSW Google Scholar Kyungrock Paik Kyungrock Paik 1School of Civil

<p>Valleys associated with convergent topography are common features on the earth’s surface. Valley bottoms along which most rivers flow have been considered geomorphologically important since stream channels adjust their forms within them and, consequently, the width of the valley bottom determines the planform and type of channel reach. The headwater streams comprise transitional and colluvial channels and account for nearly 70 to 80 percent of the river network. Th

<p>High-elevation steep escarpments in the passive continental margins are known to have resulted from long-lasting erosion following rifting-related marginal uplift. However, recent studies have revealed that rifting-related processes alone do not explain the high-elevation marginal escarpment. Particularly, post-rift rejuvenation could contribute to the growth of the relief of the long-lived escarpment. A steep escarpment rising above 1,700 m occurred along the eastern margin of

<p>Headwater catchments, each of which consists of hillslopes, valley heads, and colluvial channels, make up a major portion of a drainage basin, supplying sediment, water, and nutrients downstream. In a headwater catchment, valley heads where hillslope diffusive transport transits to fluvial transport play an important role in channel initiation. Headwater catchments where mass movements are dominated are sensitive to human activities. Human activities in headwater catchments, suc