표제지
목차
Abstract 7
Ⅰ. 서론 8
Ⅱ. 연구내용 및 방법 10
1. 하천유량 측정망 운영상태 및 유량 측정상태 검토 10
2. 하천유량과 총량유량간 연관성 분석 10
3. 총량관리 단위유역별 하천유량 연계지점 선정 11
4. 총량관리 단위유역별 일유량 산정식 도출 12
5. 총량관리 단위유역별 일유량 산정 및 장기유황곡선 작성 14
Ⅲ. 연구결과 및 고찰 15
1. 하천유량 측정망 운영상태 15
가. 측정지점 15
나. 측정지점별 운영기간 16
2. 하천유량 측정지점별 유량측정 상태 18
가. 하천유량 결측상태 18
나. 하천유량 제로("0")측정 상태 19
다. 하천유량 고정측정 상태 20
3. 하천유량과 총량유량 연관성 21
가. 유량관측 일치성 21
나. 유량간 상관성 23
다. 유의성 검정 25
4. 총량관리 단위유역별 하천유량 연계지점 27
가. 연계지점 선정 대상자료 27
나. 하천유량 연계지점 28
5. 총량관리 단위유역별 일유량 산정식 30
가. 회귀분석 적용식 30
나. 회귀식의 적합도 30
6. 총량관리 단위유역별 일유량 및 장기유황곡선 32
가. 단위유역 일유량 32
나. 단위유역 장기유황곡선 32
7. 4대강수계 장기유황곡선 구축방안 34
가. 장기유황곡선 제한요인 34
나. 장기유황곡선 안정적 구축방안 35
Ⅳ. 결론 38
참고문헌 39
[부록] 41
Table 1. The comparison of characteristics between stream flow & unit watershed flow monitoring network 15
Table 2. The number of stream flow monitoring sites by year in 4 river basins 16
Table 3. The average operation period of the stream flow monitoring sites in 4 river basins(2006~2010) 18
Table 4. The number of stream flow monitoring sites by duration period in 4 river basins(2006~2010) 18
Table 5. The ratio of missing data and the average missing days in 4 river basins(2006~2010) 19
Table 6. The ratio of zero value data and the average zero value days in 4 river basins(2006~2010) 20
Table 7. The number of fixed value data and the average fixed value days in 4 river basins(2006~2010) 20
Table 8. The number of flow data by observation times on the stream at the same date with the unit watershed in 4 river basins(2006~2010) 22
Table 9. The number of stream flow data by significance level in 4 river basins(2006~2010) 26
Table 10. The number of arranged data for the selection of reference sites in 4 river basins(2006~2010) 28
Table 11. The percentage of reference site selection and the number of average reference data in 4 river basins(2006~2010) 29
Table 12. The number of stream flow reference sites with the extension of selection range for the unit watershed in 4 river basins 29
Table 13. The number of unit watersheds with relation to simple linear equation(SLE) & log transformed equation(LTE) in 4 river basins 31
Table 14. The number of stream flow data by duration period used for the unit watersheds in 4 river basins(2006~2010) 32
Table 15. The non discharge ratio of dammed area in 4 river basins(2006~2010) 34
Table 16. The unit watersheds where the new installation of stream monitoring site is required in 4 river basins (2010 year base) 36
Table 17. The stream flow monitoring sites where the special management is required for the management of TMDLs in 4 river basins(2010 year base) 37
Fig. 1. The procedure for the selection of the stream flow reference sites 12
Fig. 2. The distribution of stream flow monitoring sites in 4 river basins(2006~2010) 17
Fig. 3. The relationship between missing days and observation times(frequency) of stream flow measurements in 4 river basins 23
Fig. 4. The distribution ratio of correlation coefficient between the stream flow and the unit watershed flow in 4 river basins 24
Fig. 5. The relationship between stream flow observation conditions and correlation coefficient in 4 river basins 25
Fig. 6. The relationship between stream flow observation conditions and significance level in 4 river basins 27
Fig. 7. The distribution of the coefficient of determination & mean error of regression equations in 4 river basins 31
Fig. 8. The long term duration curve for a unit watershed in 4 river basins(2006~2010) 33