Application of the SCS–CN Method to the Hancheon Basin on the Volcanic Jeju Island, Korea

Research on Jeju Island's volcanic terrain reveals key insights into the Soil Conservation Service–Curve Number (SCS–CN) method, which models rainfall-runoff relationships. The study found that the Hancheon Basin's maximum potential retention is approximately 200 mm, with a corresponding Curve Number (CN) of around 65, and an initial abstraction ratio of about 0.3. Notably, antecedent moisture conditions (AMC) significantly influence CN values, showing a clear linear relationship, while maximum potential retention inversely correlates with AMC. The analysis also demonstrated that the SCS–CN model's structure holds for this volcanic basin, providing a framework to estimate runoff and water management in similar environments.

Kang, M., & Yoo, C. (2020). Application of the SCS–CN Method to the Hancheon Basin on the Volcanic Jeju Island, Korea. Water, 12(12), 3350. https://doi.org/10.3390/w12123350