Default Manning's roughness by land-cover class

A named numeric vector of representative Manning's \(n\) values for common land-cover classes, drawn from standard hydraulic references and distributed hydrological models. Used as the default lookup by roughness when method = "landcover". Users may supply their own table.

Usage

floodflow_lc_roughness

Format

A named numeric vector. Names are land-cover classes; values are Manning's \(n\).

Value

A named numeric vector of length 8. Each element is a representative Manning's roughness coefficient \(n\) (dimensionless) and its name is the land-cover class it applies to ("water", "urban", "bare", "grassland", "cropland", "shrub", "forest", "wetland"). It is the default land-cover-to-roughness lookup table used by roughness.

Examples

floodflow_lc_roughness["forest"]
#> forest 
#>    0.1