Evaluation and improvement of water environment monitoring networks considering changes in water environment conditions: A case study of the Miho River Basin

Hyundong Hwang; Nayoung Yu; Byeol Choi

doi:10.3741/JKWRA.2026.59.9.1145

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2026 Vol.59, Issue 9 Preview Page

Evaluation and improvement of water environment monitoring networks considering changes in water environment conditions: A case study of the Miho River Basin 물환경 변화 특성을 고려한 물환경측정망 평가 및 개선방안 - 미호강 수계를 중심으로 -

30 September 2026. pp. 1145-1159

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Abstract

This study presented an evaluation procedure for reviewing the suitability of existing water environment monitoring networks and deriving candidate sites for new installation or relocation in consideration of changes in the water environment, and then examined its applicability in the Miho River basin. The study was conducted through the following steps: review of the suitability of existing monitoring stations, identification of priority areas for water quality management, selection and feasibility review of candidate sites, and final selection of candidate sites. The suitability assessment showed that, among the 28 existing monitoring stations, 15 were evaluated as suitable and 13 as partially suitable. While a certain degree of information redundancy was observed among consecutive mainstream stations, major tributary outlet stations and stations located immediately upstream of confluences exhibited independent variation characteristics. The composite evaluation of priority areas for water quality management indicated that the Hancheon, Mihogang3, Mihogang2, Mihogang1, and Mihogang6 watersheds had the highest priorities, from which 13 primary candidate sites were derived. Through field investigations and consultation with relevant agencies and experts, these were further refined into seven secondary candidate sites. Changes in pollution sources within the impact area and simultaneous monitoring at existing and candidate sites were then used to evaluate feasibility, resulting in the final selection of five candidate sites. This study proposed a multi-stage evaluation framework that integrates the functional adequacy of the existing monitoring network, redundancy and independence among stations, pollution source distribution, and field operability. The proposed framework can serve as a practical tool for reorganizing water environment monitoring networks in other watersheds as well.

Keywords

Water environment monitoring network

Monitoring network evaluation

Monitoring network adjustment

Miho River

Multivariate statistical analysis

본 연구는 물환경 변화 특성을 반영하여 기존 물환경측정망의 적합성을 검토하고 신설·변경 후보지를 도출하기 위한 평가 절차를 제시한 후, 이를 미호강 수계에 적용하여 활용 가능성을 검토하였다. 연구는 기존 측정망 적합성 검토, 수질관리 우심지역 도출, 후보지 선정 및 타당성 검토, 최종 후보지 선정의 단계로 수행되었다. 기존 측정망 적합성 평가 결과, 기존 측정망 28개 지점 중 15개 지점은 적합, 13개 지점은 부분 적합으로 평가되었으며, 본류 연속 지점들 사이에는 일정 수준의 정보 중복성이 존재한 반면, 주요 지류 말단 및 합류 직전 지점은 독립적인 변동 특성을 나타내었다. 수질관리 우심지역에 대한 종합평가 결과 한천, 미호강3, 미호강2, 미호강1, 미호강6 유역의 우선순위가 높게 나타났으며, 이를 바탕으로 1차 후보지 13개소를 도출하였으며, 현장조사와 관계기관 및 전문가 의견수렴을 거쳐 2차 후보지 7개소를 선정하였다. 기존 지점과 후보 지점의 오염원 변화 및 동시 모니터링을 통해 타당성을 검토하여 최종 후보지 5개소를 선정하였다. 본 연구는 기존 측정망의 기능 적정성, 지점 간 중복성과 독립성, 오염원 분포, 현장 운영 가능성을 통합적으로 고려한 다단계 평가체계를 제시하였으며, 향후 다른 수계의 물환경측정망 재정비에도 적용 가능한 실무적 평가 틀로 활용될 수 있다.

키워드

물환경측정망

측정망 평가

측정망 조정

미호강

다변량 통계분석

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Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 59
No :9
Pages :1145-1159
Received Date : 2026-05-11
Revised Date : 2026-07-23
Accepted Date : 2026-07-27
DOI :https://doi.org/10.3741/JKWRA.2026.59.9.1145

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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