총량관리 단위유역 일평균유량의 시계열 누적 변화에 따른 유량지속곡선 차이 분석
Analysis of the Difference of Flow Duration Curve According to the Cumulative Variation of the Daily Average Flow in Unit Watershed for TPLCs
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참고문헌
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초록
The LDC (Load Duration Curve) method can analyze river water quality changes according to flow rate and seasonal conditions. It is also possibleto visually recognize whether the target water quality is exceeded or the size of the reduction load. For this reason, it is used for the optimal reductionof TPLCs and analysis of the cause of water pollution. At this time, the flow duration curve should be representative of the water body hydrologiccurve, but if not, the uncertainty of the interpretation becomes big because the damaged flow condition is changed. The purpose of this study is toestimate the daily mean flow of the unit watershed using the HSPF model and to analyze the difference of the flow duration curves according to thecumulative daily mean flow rate using the NSE technique. The results show that it is desirable to construct the flow duration curve by using the dailyaverage flow rate of at least 5 years although there is a difference by unit watershed. However, this is the result of the water bodies at the end ofHan River basin watershed, so further study on various water bodies will be necessary in the future.
Abstract
The LDC (Load Duration Curve) method can analyze river water quality changes according to flow rate and seasonal conditions. It is also possibleto visually recognize whether the target water quality is exceeded or the size of the reduction load. For this reason, it is used for the optimal reductionof TPLCs and analysis of the cause of water pollution. At this time, the flow duration curve should be representative of the water body hydrologiccurve, but if not, the uncertainty of the interpretation becomes big because the damaged flow condition is changed. The purpose of this study is toestimate the daily mean flow of the unit watershed using the HSPF model and to analyze the difference of the flow duration curves according to thecumulative daily mean flow rate using the NSE technique. The results show that it is desirable to construct the flow duration curve by using the dailyaverage flow rate of at least 5 years although there is a difference by unit watershed. However, this is the result of the water bodies at the end ofHan River basin watershed, so further study on various water bodies will be necessary in the future.
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