새만금간척전후의 잔차류의 계절변화에 관한연구

신문섭 ( Shin Moon Seup ) 한국농공학회 2000 한국농공학회 학술대회초록집 Vol.2000 No.-

Saemangeum coastal area is being constructed the 33km sea dike and 40,000ha reclamation area. The purpose of this study is to find the residual circulations in spring before and after the dike construction by a robust diagnostic and prognostic numerical model. Heat flux at the sea surface in May was adopted on the basis of the daily inflow of solar radiation at the earth surface, assuming an average atmospheric transmission and no clouds, as a function of latitude and time of year(George L.P.,J. E. William,1990). The discharge from the Geum, the Mankyung and the Dongjin rivers was adopted on the basis of experience formula of river flow in May(The M. of C.,Korea, 1993). Water temperature and salinity along the open boundaries are obtained from the results of field observations. The results of spring of the residual flow in the Saemangeum coastal area by a prognostic numerical model lead to the following conclusions: Water temperature in spring is the highest, salinity is the lowest and density is the lowest at the upper layer near the coast after the dike construction. The flow pattern at the upper layer during spring is anti-clockwise circulation between Wi and Shinsi islands. The flow pattern at the lower layer is clockwise circulation between Wi and Shinsi islands.

防潮堤 築造에 따른 土砂擴散 豫測

신문섭(Moon-seup Shin),김상필(Sang-pill Kim),장인규(In-kyoo Chang),이종형(Jong-hyung Lee) 군산대학교 수산과학연구소 1992 水産科學硏究 Vol.- No.8

백령도 간척공사에 따른 방조제 축조로 인하여 해양환경의 변화가 예상되는 바, 특히 그중에서도 공사에 따른 토사의 확산과 해수유동에 미치는 영향이 클 것으로 예상된다. 본 연구에서는 해수유동과 토사확산 농도예측을 위하여 해역에서의 운동방정식과 연속방정식, 확산방정식을 차분화하여 계산하여 보았다. 해수의 흐름은 창조시에는 남서쪽에서 북동쪽으로, 낙조시에는 북동쪽에서 남서쪽으로 흐르며 이때의 유속은 0.6~1.1m/sec의 빠른 유속을 보였다. 토사분포는 공사지점에서 50~100ppm, 형제바위 부근에서 6ppm, 정암부근에서 0.5ppm을 나타내었는데, 운동방정식, 연속방정식, 확산방정식을 차분화하여 구한 모델은 미시적인 관점에서는 약간의 차이를 보였지만 거시적인 관점에서 보았을 때는 전반적으로 잘 일치하는 결과를 나타내었다. A numerical prediction of the tidal current and the survey of ocean was conducted in order to investigate the tidal current around the island of Paengnyong. The measurement of velochy and the direction of the tidal current are in accord with the numerical prediction. The measurement of the density of soil diffusion and area of it are similar of the numerical prediction model. In case of flood tide, the density of soil thickly distributed to the direction of Hyeong-je rock and Jeong-am rock. The density of soil are as follows: Tbe site of construction; 5~100ppm, the around of Hyeong-je rock; 6ppm, and the around of Jeong-am; 0.5ppm.

금강하구둑 축조 전ㆍ후의 지형 및 흐름특성에 관한 연구

신문섭(MOON-SEUP SHIN),배기성(KI-SEONG BAE),강신중(SHIN-JUNG KANG),김재형(JAE-HYOUNG KIM) 한국해양공학회 2006 韓國海洋工學會誌 Vol.20 No.3

The estuary has a very complex coastline and bottom topography. Before the close of floodgate, the Keum river estuary was deposited with sediment from the Keum river, created bythe construction of the Keum river estuary dike. So, a periodical dredging is necessary to assure water depth for boat entry and departure to Kunsan port. Theof this study is to find the change of tidal current of M2tide and the topography before and after construction at the Geum River estuary dike. The change of water depth is investigated by digitizing the sea map (No.305) of Kunsan port, which was edited by National Oceanographic Research Institute. The calculated co-range and co-tidal charts of M2tide before the dike construction are similar to the observed ones. Therefore, the amplitude and phase after construction at Geum River estuary dike increases compared to before construction at Geum River estuary dike. The scour occurred in the A-A' section.

만경강과 동진강하구의 퇴적과정에 관한 연구

신문섭 ( Shin Moon Seup ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-

The purpose of this study is to find sedimentation patterns variation before and after Saemangeum reclamation. water circulations are calculated diagnostically from the observed water temperature and salinity data and wind data and tidal residual current. Three dimensional movements of injected particles due to currents, turbulence and sinking velocity are tracked by the Euler-lagrange methoed. Calculated sedimentation patterns of riverine material are highly similar to the observed ones.

새만금간척전ㆍ후 잔차류의 계절변화에 관한연구

신문섭 ( Shin Moon Seup ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-

The land reclamation area of Saemangeum(Kunsan) is located between 126°10' E~126°50' E and 35°35' N~36°05' N at the western coast of the Korean peninsula. There are many small islands including extensive areas of semi-diurnally flooded and dewatered tidal flats. The reclamation area of Saemangeum has a range or 5.6m spring tide and the maximum tidal current speed is about 1.41 m S^-1 in ordinary spring tide. Most of the sediments deposited on the tidal flats are transported from the Geum river, the Mankyung river and the Dongjin river. The soil in this area consists of silty sand with the depth of 10m to 30m. The wind in winter is strong from the direction of northwest. In the past twenty years, land reclamation projects for agricultural purpose or industrial complex have been mostly implemented along the western coast of Korea. Saemangeum coastal area is being constructed the 33km sea dike and 40,100ha reclamation area. The purpose of this study is to find the residual circulations in four seasons after the dike construction by a robust diagnostic and prognostic numerical model. Heat flux at the sea surface in January, May, August, October was adopted on the basis of the daily inflow of solar radiation at the earth surface, assuming an average atmospheric transmission and no clouds, as a function of latitude and time of year(George L.P.,J. E. Wiliiam,1990). The discharge from the Geum, the Mankyung and the Dongjin rivers was adopted on the basis of experience formula of river flow in January. May, August, October(The M. of C.,Korea, 1993). Water temperature and salinity along the open boundaries are obtained from the results of field observations.

새만금간척에 따른 미티게이션

신문섭 ( Shin Moon Seup ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-

The reclamation area of Saemangeum(Kunsan) located between 126 °10' E - 126 °5 0' E and 35 °35' N - 36 °05' N at the western coast of Korea. The construction of the 33km sea dike is building in the Saemangeum area. When the construction of the sea dike in the coastal region takes plase, there exists, a certain amount of soil which is diffused by the tidal current. Behavior of the soil diffusion usually depends on its intrinsic characteristics, bathymetry, construction method and used machinery. The amount of soil at the construction acts as a pollutant which is the cause of changing the marine environment. When the soil material is diffused, it may form a layer which obstructs the light passing into the sea and causes the extinction or alteration of the living beings on the sea bottom. The settlement of soil material could change the sea bottom deposit. The purpose of MITIGATION is to harmonize the development and the conservation of enviroment, to restrict enviromental destruction and to reproduce the enviroment damaged by the construction in the coastal region. The purpose of this study is to find the method by which we minimize the anti-function of development in the coastal region. Tide and tidal current are calculated using a two-dimensional numerical model before the construction of sea dike in Saemangeum Bay. The numerical results are compared well with field observations. On the basis of these results, we calculated the tide and tidal current after the construction of the sea dike in order to investigate the change of the tide and tidal current after the construction of the sea dike. Moreover, we calculated the tide and tidal current after the construction of submerged breakwater in order to preserve the environmental condition of creature habitat. We compared the tide and tidal current before and after the construction of submerged breakwater, to investigate the possibility of MITIGATION in the fisheries.

최종체절구간에서 유속변화에 관한 연구

신문섭 ( Shin Moon Seup ),유시훙 ( Yu Shi Hung ),이용래 ( Lee Yong Rea ),권철휘 ( Kwoun Chul Hui ),최용규 ( Choi Yong Kyu ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-

The purpose of this study is to find on tl1e Current Change and residual current in Final closing section of Seamangum the sea dike. The M₂ current was calculated in two case of the two and three point Final closing section. The residual currents are calculated diagnostically from the observed water temperature and salinity data and wind data and tidal residual current.

친수환경 조성을 위한 연구

신문섭 ( Shin Moon-seup ),이동주 ( Lee Dong-joo ),유대성 ( Yoo Dae-sung ),강신중 ( Kang Shin-joong ),이건탁 ( Lee Gun-tak ) 한국농공학회 2005 한국농공학회 학술대회초록집 Vol.2005 No.-

It is necessary that the construction of submerged breakwater could minimize and compensate the negative effect on the marine environment and ecosystem caused by the Saemangeum reclamation. The important merit of this proposal is that the space between Saemangeum embankment and submerged breakwater is expected to become nursery ground for fish and shellfishes. The purpose of this study was investigated hydraulic characteristic of submerged breakwater to investigate the possibility of mitigation in the fisheries ground by hydraulic experiment.

防潮堤 築造에 따른 潮流變化

신문섭(Moon-Seup Shin),홍성근(Sung-Kun Hong) 군산대학교 수산과학연구소 2004 군산대학교 수산과학연구소 연구논문집 Vol.3 No.-

A measurements and numerical analysis of tidal current were carried out at around Siwha seawell in Ansan and Taebudo of Kyung Gi Do,to investigate the tidal current change attend on seawell constrection.The velocity and direction of tidal current are in accord with the numerical analysis. tidal current of most region are fast as 2.0m/sec over.Tidal current were on the increase as increase water level difference in outside and inside.

잠제의 공극변화에 따른 소파효과에 관한 실험적 연구

신문섭(Moon Seup Shin),이현진(Hyun Jin Lee),박구용(Koo Yong Park) 대한토목학회 2008 대한토목학회 학술대회 Vol.2008 No.10