http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
박석순,이용석,박민대 ( Seok Soon Park,Yong Seok Lee,Min Dae Park ) 한국하천호수학회 1991 생태와 환경 Vol.24 No.4
The Stochastic Time River Elevator Approach Mode (STREAM) which is a multiconstituent stream ecosystem model was exclusively developed in this study. The formulation of STREAM is based on the Cell-In-Series (CIS) approach where stream is assumed as a series of completly mixed flow reactors. This approach is to use a Lagrangian coordinate instead of an Eulerian such that it can overcome the limitations repoted in the previous stream models, such as QUAL2E. Major constituents included in STREAM are Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Suspended Solid (SS), Coliform Bacteria, Nitrogen Series, Phosphorus Series, and Phytoplankton. Dissolved oxygen change caused by Sediment Oxygen Demand (SOD) and respiration and photosynthesis of periphyton and macrophyte are included in the model structure. STREAM was programed in a BASIC language and graphic was attached. In order to validate STREAM model, both STREAM and QUAL2E (developed by United States Environmental Protection Agency) were applied to the South Branch of Han River under the same amibient condition. The result indicated that STREAM could simulate most water qualities with same accuarcy and less computer time than QUAL2E.
소수력 발전댐의 영향 예측을 위한 한탄강 수질 모델 연구
박석순(Seok Soon Park),이시진(Si Jin Lee),이용석(Yong Seok Lee),최경식(Kyoung Sik Choi) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.1
A water quality modeling study was performed for the Hantan River located at Yeoncheon-gun, Kyunggi-do, in order to predict the impact of a small dam for hydroelectric power generation. Model construction was based on QUAL2E which was developed by United States Environmental Protection Agency. The study area was divided into 12 reaches according to the hydraulic characteristics of the Hantan River. Each reach was then subdivided into uniform computational element of 0.25㎞. Five synoptic surveys were performed from March to November, 1996. Data from two of them were used for model calibration and verification. In most cases, there were reasonable agreements between the model results and the field measurements. The validated model was then used to predict the impact of the dam on water qualities. The deterioration of water qualities was found in the study area from the field surveys. From the modeling study, however, it was predicted that the dam does not cause a significant impact on water qualities, if the base flow would be discharged from the dam. The control of pollution sources located at the Youngpyung branch was suggested along with the maintenance of base flow from the dam for the water quality conservation of the Hantan River.
이용석,최은주,박민대,박석순 ( Yong Seok Lee,Eun Ju Choi,Min Dae Park,Seok Soon Park ) 한국하천호수학회 1992 생태와 환경 Vol.25 No.4
The dissolved oxygen changes caused by aquatic plants and sediments were computed in the Tancheon, a tributary of the Han River, by utilizing a stream model. According to the collected water quality conditions, the Tancheon was classified into two distinctive zones which were eutrophic zone in upstream area and polysaprobic zone in downstream area. The dissolved oxygen levels of the stream were determined mainly by the photosynthesis and respiration of the macrophytes in upstream area and by the sediment oxygen demand in downstream. Field data were obtained from two synoptic stream surveys performed during May and October, 1990 for two consecutive days. The high diurnal dissolved oxygen variation was observed in upstream area due to an excessive growth of aquatic plants. In downstream area, however, little diurnal variation with low dissolved oxygen level was observed, which would be attributed to high sediment oxygen demand and no discernible aquatic plant growth. In upstream area, the dissolved oxygen chan-ges caused by the photosynthesis and respiration were ranged from 55 to 100 g O_2/m^2/day from 30 to 70 g O_2/m^2/day, respectively, during the first survey. The changes were ranged from 40 to 80 g O_2/m^2/day for the photosynthesis and from 25 to 55 g O_2/m^2/day for the respiration during the second survey. In downstream area, the sediment oxygen demands were measured from 4 to 100 g O_2/m^2/day during both surveys.
상수원 보호를 위한 유역기반 토지관리 우선순위 모델 적용
이지현 ( Jee Hyun Lee ),최지용 ( Ji Yong Choi ),박석순 ( Seok Soon Park ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.5
Due to the growing impact of non-point source pollution and limitation of water treatment technology, a new policy of water quality management, called a source protection, is now becoming more important in drinking water supply. The source protection means that the public agency purchases the pollution sensitive area, such as riparian zone, and prohibit locations of point and non-point sources. Many studies have reported that this new policy is more economical in drinking water supply than the conventional one. However, it is very difficult to determine location and size of the pollution sensitive zone in the watershed. In this paper. we presented the scientific criteria for the priority of the pollution sensitive zone, along with a case study of the upstream watershed of the Paldang Reservoir, Han River. This study includes applications of the analytical hierarchy process(AHP) and a watershed-based land prioritization(WLP) model. After major criteria affecting water quality were selected, the AHP and geographic analysis were performed. The WLP model allowed us to include both quantity and quality criteria, using AHP as the multi-criteria method in making decision and reflecting local characteristics and various needs. By adding a travel-time function, which represents the prototype effectively, the results secured adaptability and scientific objectivity as well. As such, the WLP model appeared to provide reasonable criteria in determining the prioritization of land acquisition. If the tested data are used with a validated travel-time and AHP method is applied after further discussion among experts in such field, highly reliable results can be obtained.
박성원 ( Seong Won Park ),이혜원 ( Hye Won Lee ),이용석 ( Yong Seok Lee ),박석순 ( Seok Soon Park ) 한국하천호수학회(구 한국육수학회) 2013 생태와 환경 Vol.46 No.4
A three-dimensional hydrodynamic model was applied to the Lake Euiam. The lake has three inflows, of which Gongji Stream has the smallest flow rate and poorest water. The dam-storage volume, watershed area, lake shape and discharge type of the Chuncheon Dam and the Soyang Dam are different. Therefore, it is difficult to analyze the water plume and mixing pattern due to the difference of the two dams regarding the amount of outflow and water temperature. In this study, we analyzed the effects of different characteristics on temperature and conductivity using the model appropriate for the Lake Euiam. We selected an integrated system supporting 3-D time varying modeling (GEMSS) to represent large temporal and spatial variations in hydrodynamics and transport of the Lake Euiam. The model represents the water temperature and hydrodynamics in the lake reasonably well. We examined residence time and spreading patterns of the incoming flows in the lake based on the results of the validated model. The results of the water temperature and conductivity distribution indicated that characteristics of upstream dams greatly influence Lake Euiam. In this study, the three-dimensional time variable water quality model successfully simulated the temporal and spatial variations of the hydrodynamics in the Lake Euiam. The model may be used for efficient water quality management.