한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제38권11호
  • /
  • Pages.955-962
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  • 2005
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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SCS 방법 적용을 위한 선행토양함수조건의 재설정: 1. SCS 방법 검토 및 적용상 문제점

Revised AMC for the Application of SCS Method: 1. Review of SCS Method and Problems in Its Application

  • 박정훈 (고려대학교 사회환경시스템공학과) ;
  • 유철상 (고려대학교 사회환경시스템공학과) ;
  • 김중훈 (고려대학교 사회환경시스템공학과)
  • 발행 : 2005.11.01
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초록

선행함수조건(AMC)에 따라 유출용적이 매우 다르게 나타날 수 있음에도 불구하고 우리나라에서의 강우-유출 해석에는 그 적용성에 대한 평가 없이 미국에서 개발된 AMC조건(SCS, 1972)이 일반적으로 그대로 이용되고 있다. 본 연구에서는 SCS의 CN 결정과정을 그대로 따라 평창강 유역의 장평 소유역에 대해 CN 값을 추정하고 이를 이용하여 AMC 조건을 평가하였다. 그 결과 CN(I), CN(II), CN(III)가 각각 72.1, 79.3, 76.7로 추정되었다. CN(II)의 경우는 기존 보고서와 유사한 값을 보여주고 있으나 나머지 값의 경우는 이론적인 값과 매우 동떨어진 결과를 나타내고 있다. 그러나 CN의 평가만으로 AMC 조건의 적절성을 판단하는 것은 어려우며, 오히려 AMC 조건의 발생 빈도를 검토하여 AMC 조건의 적절성은 판단하는 것이 바람직하다. 본 연구에서도 AMC 조건별로 호우사상의 발생빈도를 히스토그램으로 작성/비교하였으며, AMC-III 조건은 상향될 필요가, 반대로 AMC-I 조건은 하향될 필요가 있음을 확인하였다.

Even though the runoff volume is very sensitive to the antecedent soil moisture condition (AMC), the general rainfall-runoff analysis in Korea has accepted, without careful consideration of its applicability, the AMC classification of the Soil Conservation Service (SCS, 1972). In this study, by following the development procedure of SCS Curve Number (CN), the rainfall-runoff characteristics of the Jangpyung subbasin of the Pyungchang River Basin were analyzed to estimate the CN and evaluate the AMC classification of currently being used. As results, CN(I), CN(II), and CN(III) were estimated to be 72.1, 79.3, and 76.7, respectively. Among them CN(II) was found to be similar to the other reports but the other two were totally different from those of theoretically estimated. However, it is difficult to evaluate the AMC with CN, rather the frequency of each AMC could be a better indicator for its validity. This study developed the histogram of AMC and compared the frequency of each AMC. hs results we found that the criterion for AMC-III should be increased, Hut that for AMC-I decreased.

키워드

참고문헌

  1. 건설교통부 (1992). 1991년 국제수문개발계획보고서, pp. 796
  2. 건설교통부 (2003). 2002년 국제수문개발계획보고서, pp. 742
  3. Andrews, R.G. (1954). 'The use of relative infiltration indices in computing runoff.' Soil Conservation Service, Fort Worth, Texas, pp. 6
  4. Castillo, V. M., Gomez-Plaza, A. and Martinez-Mena, M. (2003). 'The role of antecedent soil water content in the runoff response of semiarid catchments: A simulation approach.' Journal of Hydrology, Vol. 284, pp. 114-130 https://doi.org/10.1016/S0022-1694(03)00264-6
  5. Chen, C.L. (1981). 'An Evaluation of the mathematics and physical significance of the Soil Conservation Service curve number procedure for estimating runoff volume.' Rainfall-Runoff Relationship (ed. by V.P. Singh) Water Resources Publications, pp. 387-418
  6. Choi, J.Y., Engel, B.A. and Chung, H.W. (2002). 'Daily streamflow modeling and assessment based on the curve-number technique.' Hydrological Processes, Vol. 16, pp. 3131-3150 https://doi.org/10.1002/hyp.1092
  7. De Michele, C. and Salvadori, G. (2002). 'On the derived frequency distribution: analytical formulation and the influence of antecedent soil moisture condition.' Journal of Hydrology, Vol. 262, pp. 245-258 https://doi.org/10.1016/S0022-1694(02)00025-2
  8. Hawkins, R.H. (1978a). 'Effect of rainfall intensity on runoff curve numbers.' Utah Agric Exp. Stn Journal 2288
  9. Hawkins, R.H. (1978b). 'Runoff curve number relationships with varying site moisture.' Journal of Irrigation and Drainage Division, ASCE, Vol. 104, pp. 389-398
  10. Hjelmfelt, A.T. Jr., Kramer, K. A., and Burwell, R. E. (1982). 'Curve numbers as random variables.' Proceedings of International Symposium on Rainfall-Runoff Modeling, Water Resource Publication, Littleton, Colorado, pp. 365-373
  11. Hjelmfelt, A. T. Jr. (1991). 'Investigation of curve number procedure.' Journal of Hydraulic Engineering, ASCE, Vol. 117, No.6, pp. 725-737 https://doi.org/10.1061/(ASCE)0733-9429(1991)117:6(725)
  12. Hope, A.S. and Schulze, R.E. (1981). 'Improved estimates of stormflow volume using the SCS curve number mMethod.' Rainfall-Runoff Relationship (ed. by V. P. Singh) Water Resources Publications, pp. 419-428
  13. Michell, J.K., Engel, B.A., Srinivasan, R., Bingner, R.L., and Wang, S.S.Y. (1993). 'Validation of AGNPS for small mild topography watersheds using an integrated AGNPS/GIS.' In Advances in Hydro-Science and -Engineering, Vol. I, ed. S.S.Y. Wang, pp. 503-510
  14. Mockus, V. (1949). 'Estimation of total (and peak rates of) surface runoff for individual storms.' Exhibit A in Appendix B, Interim Survey Report Grand (Neosho) River watershed, USDA
  15. Mockus, V. (1964). Chapter 10. Estimation of Direct Runoff from Storm Rainfall, Section 4. Hydrology, National Engineering Handbook, USDA
  16. Ponce, V.M. and Hawkins, R.H. (1996). 'Runoff curve number: Has it reached maturity?' Journal of Hydrologic Engineering, ASCE, Vol. 1, No.1, pp. 11-19 https://doi.org/10.1061/(ASCE)1084-0699(1996)1:1(11)
  17. Rallison, R.E., and Cronshey, R.C. (1979). 'Discussion to runoff curve numbers with varying soil moisture.' Journal of Irrigation and Drainage, ASCE, 105(4), pp. 439-441
  18. Rallison, R.E., and Miller, N. (1982). 'Past, present, and future of SCS runoff procedure.' Proceedings of International Symposium on Rainfall-Runoff Modeling, Water Resource. Published Littleton, Col., pp. 353-364
  19. Sherman, L.K. (1949). 'The unit hydrograph method.' in O. E. Meinzer(ed.), Physics of Earth, Dover Publications Inc., New York, NY pp. 514-525
  20. Sobhani, G. (1975). A Review of Selected Small Watershed Design Methods for Possible Adoption to Iranian Conditions, M. S. Thesis, Utah State University, Logan, Utah
  21. Soil Conservation Service (SCS, 1972). National Engineering Handbook, Section 4, Hydrology, Chap. 10, Washington, D.C.
  22. Soil Conservation Service (SCS, 1985). National Engineering Handbook, Section 4, Hydrology, Chap. 10, Washington, D.C.

피인용 문헌

  1. Re-establishing the Antecedent Moisture Condition of NRCS-CN Method Considering Rainfall-Runoff Characteristics in Watershed Based on Antecedent 5-Day Rainfall vol.34, pp.3, 2014, https://doi.org/10.12652/Ksce.2014.34.3.0849
  2. Comparative Analysis of Estimation Methods for Basin Averaged Effective Rainfall Using NRCS-CN Method vol.34, pp.2, 2014, https://doi.org/10.12652/Ksce.2014.34.2.0493
  3. Evaluation of Rain Garden for Infiltration Capability and Runoff Reduction Efficiency vol.17, pp.1, 2015, https://doi.org/10.17663/JWR.2015.17.1.101
  4. Comparing Calculation Techniques for Effective Rainfalls Using NRCS-CN Method: Focused on Introducing Weighted Average and Slope-based CN vol.34, pp.4, 2014, https://doi.org/10.12652/Ksce.2014.34.4.1171
  5. Effect of Changes in Soil Maps on the Effective Rainfall Based on SCS CN Method vol.14, pp.5, 2014, https://doi.org/10.9798/KOSHAM.2014.14.5.283
  6. Estimation of Runoff Curve Number for Ungaged Watershed using SWAT Model vol.51, pp.6, 2009, https://doi.org/10.5389/KSAE.2009.51.6.011
  7. Evaluation of Problems to Apply Runoff Curve Number to Mountain Area in Korea vol.14, pp.5, 2014, https://doi.org/10.9798/KOSHAM.2014.14.5.293
  8. Study on Variations in Flooding Volume According to Ratio of Rainfall to Projected Cross-Sectional Area of Photovoltaic Facilities vol.18, pp.6, 2018, https://doi.org/10.9798/KOSHAM.2018.18.6.313
  9. Variational Characteristics of Flood Discharge According to Classification Criteria of Land Use vol.18, pp.2, 2018, https://doi.org/10.9798/KOSHAM.2018.18.2.395