• Water for future
• /
• v.33 no.1
• /
• pp.58-62
• /
• 2000

• Water for future
• /
• v.49 no.7
• /
• pp.26-31
• /
• 2016

• River and Culture
• /
• v.2 no.1
• /
• pp.62-66
• /
• 2006

• River and Culture
• /
• v.6 no.2
• /
• pp.36-39
• /
• 2010

• Water for future
• /
• v.29 no.4
• /
• pp.50-56
• /
• 1996

• Economic and Environmental Geology
• /
• v.42 no.6
• /
• pp.627-634
• /
• 2009

Redefining the difference among the Yamaguchi's 'so-called Yeoncheon system,' north Korean's 'Rimjin System' and Yeoncheon Group of national geological map, authors tried to avoid a possible misunderstanding of concept between Yeoncheon Group and Imjingang fold Belt. As a tool of preliminary geological mapping and or N-S reconnaissance of the whole Yeoncheon Group, an interpretation technique of satellite image from various angles has been applied to understand the geometrical attitude of strike and dip of random spot, and a further concept like as cross section.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2008.05a
• /
• pp.982-986
• /
• 2008

2000년 남북정상회담 이후 여러 분야에서 남북한경제협력사업이 진행되어 오고 있다. 특히 물 관련 산업분야는 금강산관광, 개성공단, 경의선 및 동해선 철도 도로 연결사업 등과 같은 대규모 사업에 비해 미약하나마 임진강 유역 수해방지를 위한 협력체계가 어느 정도 진행되고 있다. 이 사업은 2000년 8월 29일부터 평양에서 개최된 제2차 남북장관급회담에서 합의되어 2004년 3월에는 남북경제협력추진위원회 제8차 회의에서 임진강 남북 공동 현지조사 등 수해방지 대책수립에 합의하고 동년 4월에는 임진강수해방지 실무협의회 제3차 회의를 통해 현지조사와 관련된 조사항목, 북측에 제공할 조사용 기자재 품목, 북측의 기상 수문 자료 제공 등에 대한 합의가 있었다. 이상과 같이 남북한 공유하천에 대한 협력체계도 타 분야와 마찬가지로 지속적으로 발전하여 보다 효과적인 협력체계 단계로의 진입이 예상되고 생활 공업용수 공급, 하천관리 및 골재개발 등 보다 넓은 영역에서 다양한 협력을 기대할 수 있을 것이다. 본 연구에서는 북한과의 수자원분야 협력사업이 확대될 경우를 대비하여 북한의 수문조사 체계의 일반을 분석하여 제시하고자 하였다.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.11 no.3
• /
• pp.52-67
• /
• 2008

Recently, frequent occurrence of flash floods caused by climactic change has necessitated prompt and quantitative prediction of precipitation. In particular, the usability of rainfall radar that can carry out real-time observation and prediction of precipitation behavior has increased. Moreover, the use of distributed hydrological model that enables grid level analysis has increased for an efficient use of rainfall radar that provides grid data at 1km resolution. The use of distributed hydrologic model necessitates grid-type spatial data about target basins; to enhance reliability of flood runoff simulation, the use of visible and precise data is necessary. In this paper, physically based $Vflo^{TM}$ model and ModClark, a quasi-distributed hydrological model, were used to carry out flood runoff simulation and comparison of simulation results with data from Imjin River Basin, two-third of which is ungauged. The spatial scope of this study was divided into the whole Imjin River basin area, which includes ungauged area, and Imjin River basin area in South Korea for which relatively accurate and visible data are available. Peak flow and lag time outputs from the two simulations of each region were compared to analyze the impact of uncertainty in topographical parameters and soil parameters on flood runoff simulation and to propose effective methods for flood runoff simulation in ungauged regions.

• Journal of Korean Society of Environmental Engineers
• /
• v.39 no.11
• /
• pp.641-649
• /
• 2017

In the study, the water quality of the Imjin River basin with pollutants of changing characteristics it was determined through statistical analysis, correlation analysis, principle component and factor analysis, and cluster analysis. Among all analyzed data points, the average water quality concentration at the Sincheon 3 site shows high levels of BOD 13.4 mg/L, COD 19.9 mg/L, T-N 11.145 mg/L, T-P 0.336 mg/L, TOC 14.2 mg/L, indicating that Sincheon basin requires intersive water quality management out of the entire drainage basin. The correlational analysis of comprehensive water quality data shows statistically significant correlation between COD, TOC, BOD, T-N water quality factors, as well as finding of high correlation between organic and nutrients. The principal component analysis show that 2 main components being extracted at 81.221% from the measuring station's entire data, while seasonal data show 3 main components being extracted at 96.241%. Factor analysis of the entire data set and the seasonal data identify BOD, COD, T-N, T-P, TOC as the common factors influencing water quality. The spatial and temporal cluster analysis showed 4 groups and 3 groups, respectively, according to seasonal characteristics and land use. By analysing the water quality factors for the Imjin River basins over an 8 year period, with consideration to the spatial and temporal characteristics, this study will become the fundamental analytic data that will help understand the future changes of water quality in the Imjin River basin.

• The Journal of the Petrological Society of Korea
• /
• v.26 no.2
• /
• pp.113-125
• /
• 2017

We investigates geochemical and tectonic characteristics for the Triassic Bojangsan trachyte in the southern margin of the Imjingang belt. The geochemical signatures of the thracyte are characterized by enrichments of REE and HFS, and show no Nb trough, suggesting that would not experience arc magmatic processes involving continental crustal materials. The trachyte reveals within-plate setting in tectonic discrimination diagrams using immobile HFS Nb and Y elements. And the trachyte shows typical signatures of A-type volcanic rocks with high Ga abundance and is classified as A1-type volcanic rocks rich in Nb. The geochemical signatures suggest that the trachyte was produced by the differentiation of mantle-derived magmatism at the continental rift in extensional setting subsequent to a major collision during the Permo-Triassic Songrim orogeny. The results provide robust evodence to consider the Imjingang belt as an extension of the the Qinling-Dabie-Sulu belt between the North and South China blocks.