A table containing the type of channel and description along with the minimum, normal, and maximum value of n, if it exists. n is the "Gauckler- Manning coefficient (commonly called Manning's n)" and it's dimensionless. Source: Manning formula.
nchannel
A data.table data frame with 97 rows and 4 variables:
Type of channel name and any descriptive information
Minimum n value
Normal n value
Maximum n value