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Analysis of Load Duration Curve Using Long Time Flow Measurement Data of Kyeongancheon

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2019, 28(1), pp.35-48
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Changwan Noh 1 Phil-Sang Kwon 2 Woo-Seok Jung 2 Myunggu Lee 2 Yong-Chul Cho 2 Soonju Yu 2

1국립환경과학원
2국립환경과학원 한강물환경연구소

Accredited

ABSTRACT

Long term flow measurement and water quality analysis data need to determine the target and allowable load for each basin in Total Water Pollution Load Management System (TWPLMS). The Load Duration Curve (LDC) is analyzed the relationship between flow data and water quality, and evaluates the pollutant load characterization by flow conditions. LDC of Kyeongancheon is created by the Flow Duration Curve (FDC) that was analyzed 8-day interval measured flow data from 2006 to 2015 and numeric water quality target in Kyeongancheon. As a result of this study, it is necessary to manage the point source pollutant because the numeric water quality target is not satisfied in the low flows. Also the numeric water quality target has been exceed for four months from March to June of the year and continuous and systematic watershed management is required to satisfy the numeric water quality target.

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