cntable.lum

This file lists typical Curve Number values for different land use types.

The SCS curve number is a function of the soil’s permeability, land use and antecedent soil water conditions. Typical curve numbers for moisture condition II are listed in the following tables for various land covers and soil types (SCS Engineering Division, 1986). These values are appropriate for a 5% slope.

Field	Description	Type	Unit	Default	Range
name	Curve Number class name	string	n/a	n/a	n/a
cn_a	Curve Number for Hydrologic Soil Group A	real	none	Varies by land use	30.0-100.0
cn_b	Curve Number for Hydrologic Soil Group B	real	none	Varies by land use	30.0-100.0
cn_c	Curve Number for Hydrologic Soil Group C	real	none	Varies by land use	30.0-100.0
cn_d	Curve Number for Hydrologic Soil Group D	real	none	Varies by land use	30.0-100.0

References

SCS Engineering Division, 1986