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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.-
남강 수질측정망 자료를 이용한 비모수적 장기 수질 추세 분석
정강영 ( Kang-young Jung ),김묘정 ( Myojeong Kim ),송광덕 ( Kwang Duck Song ),서권옥 ( Kwon Ok Seo ),홍성조 ( Seong Jo Hong ),조소현 ( Sohyun Cho ),이영재 ( Yeong Jae Lee ),김경현 ( Kyunghyun Kim ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.11
In this study, seasonal Mann - Kendall test method was applied to 12 stations of the water quality measurement network of Nam-River based on data of BOD, COD, TN and TP for 11 years from January 2005 to December 2015 The changes of water quality at each station were examined through linear trends and the tendency of water quality change during the study period was analyzed by applying the locally weighted scatter plot smoother (LOWESS) method. In addition, spatial trends of the whole Nam-River were examined by items. The flow-adjusted seasonal Kendall test was performed to remove the flow at the water quality measurement station. As a result, BOD, COD concentration showed "no trand" and TN and TP concentration showed "down trand" in regional Kendall test throughout the study period. BOD and TP concentration in "no trand", COD, and TN concentration showed an "up trand" tendency in Nam-River dam. LOWESS analysis showed no significant water quality change in most of the analysis items and stations, but water quality fluctuation characteristics were shown at some stations such as NR1 (Kyungho-River 1), NR2 (Kyungho-River 2), NR3 (Nam-River), NR6 (Nam-River 2A). In addition, the flow-adjusted seasonal Kendall results showed that the BOD concentration was "up trand" due to the flow at the NR3 (Nam-River) station. The COD concentration was "up trand" due to the flow at NR1 (Kyungho-River 1) and NR2 (Kyungho-River 2) located upstream of the Nam-River. The effect of influent flow on water quality varies according to each site and analysis item. Therefore, for the effective water quality management in the Nam-River, it is necessary to take measures to improve the water quality at the point where the water quality is continuously "up trand" during the study period.