Northwest Indian Fisheries Commission

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SSHIAP AquaScape Interactive Mapping Application

Segment Gradient

This represents the rise in elevation between two points along the length of the bankfull channel divided by the run (distance) between them. Recorded as a percentage for each measurement sight or used to calculate the segment mean.

There are 6 gradient categories in the SSHIAP database:

1 (<1%)
2 (1 to 2%)
3 (2 to 4%)
4 (4 to 8%)
5 (8 to 20%)
6 (> 20%)