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Tank Model을 이용한 지석천에서 8일 간격 유량자료의 일유량 확장가능성 평가
김민규 ( Min Kyu Kim ),오태윤 ( Tae Youn Oh ),함상인 ( Sang In Ham ),서권옥 ( Kwon Ok Seo ),임창복 ( Chang Bok Lim ),이윤희 ( Youn Hee Lee ),임병진 ( Byung Jin Lim ),이동진 ( Dong Jin Lee ),김갑순 ( Kap Soon Kim ),정재운 ( Jae Woo 한국물환경학회(구 한국수질보전학회) 2011 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2011 No.-
SWAT-CUP을 이용한 8일간격 유량측정자료의 일유량 확장 가능성 평가
정재운 ( Jae Woon Jung ),조소현 ( So Hyun Cho ),임병진 ( Byung Jin Lim ),오태윤 ( Tae Youn Oh ),함상인 ( Sang In Ham ),김갑순 ( Kap Soon Kim ) 한국물환경학회 2012 한국물환경학회지 Vol.28 No.4
This study is to assess the application of SWAT-CUP (Soil and Water Assessment Tool-Calibration Uncertainty Programs) and to extend daily flow data from 8-day interval flow data which has been measured by Korean Ministry of Environment (MOE). Model sensitivity analysis and calibration were performed with sequential uncertainty fitting (SUIF-2), which is one of the programs interfaced with SWAT, in the package SWAT-CUP. The most sensitive parameters were SOL-Ksol, CH_N2.rte, CN2.mgt, SOL-BD sol, ALPHA-BF gw, ALPHA-BNK rte, SOL-AWC sol, CH_K2.rte, SFTMP bsn, GW-DELAY gw. Following the sensitivity analysis, SWAT-CUP calibration was carried out using 8-day interval flow data from January 2008 to December 2010. The results were then assessed based on the visual agreement and simulated flow plots and the performance statistics generated R2 and NSE which are 0.71 and 0.61 respectively. Results of these statistics indicated that there was a good agreement between the observed and simulated flow. To extend daily flow data from 8-day interval flow data, parameters, which were estimated by SWAT-CUP, re-entered for SWAT model. As a result, the observed flow data were found to reflect the trend of simulated flow data. From these results, it is thought that this method could be used to provide daily flow data using 8-day interval flow data.
연구논문 : 유량변동에 따른 탐진 A와 B유역에서의 오염물질 유출 특성
박진환 ( Jin Hwan Park ),임병진 ( Byung Jin Lim ),정재운 ( Jae Woon Jung ),김대영 ( Dae Young Kim ),오태윤 ( Tae Youn Oh ),이동진 ( Dong Jin Lee ),김갑순 ( Kap Soon Kim ) 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.6
In this study, we report the runoff characteristics of pollutants for Tamjin A and B watershed in Tamjin river basin using statistical analysis, such as correlation analysis and regression equation. Flow rate and water qualtiy data collected from 2 sampling sites(Tamjin A and B watershed) during 3 years(2009~2011) were analyzed for biochemical oxygen demand(BOD), total nitorgen(TN), total phosphorus(TP) and suspended solid(SS). The results showed that strong correlations were observed between flow rate and SS in Tamjin A, while weak correlations were observed among the BOD, TN, and TP. In Tamjin B, strong correlations were observed among the flow rate, SS and T-P except BOD and TP. Meanwhile, the values of R2 for regression equations between flow rate and pollutants load were greater than 0.7. Results of these statistics indicated that there was a good agreement between flow rate and pollutants load. Also, the flow rate exponents of regression equations for BOD, TN, and TP were smaller than 1 in Tamjin A. In Tamjin B, flow rate exponents of regression equation for BOD and TP were smaller than 1. These results indicated that concentrations of BOD, TN, TP in Tamjin A and concentrations of BOD and TP were decreased as the flow rate was increased. This means that rater than nonpoint sources, point sources affect BOD, TN and TP in Tamjin A and BOD and TP in Tamjin B.