Hydrology2D
Runoff - Theory & Concepts - Scs Curve Number
Catchment characteristics, runoff components, and the Rational Method.
Open the complete lessonSCS Curve Number (CN) Method Simulator
Lower CN = Permeable (e.g., woods, sandy soil)
Higher CN = Impermeable (e.g., pavement, clay)
Potential Maximum Retention (S)
84.67 mm
Initial Abstraction (Ia = 0.2S)
16.93 mm
Direct Runoff (Q)
9.29 mm
Water Balance Visualization
Runoff
Initial Abstr.
Retention
Runoff (Q) Initial Abstraction (Ia) Actual Retention