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f l o w p a t h s l o p e , s f i , i s t h e m e a n o f a l l s l o p e s a l o n g t h e f l o w p a t h b e t w e e n d i v i d e cell i and the adjacent channel (Garbrecht et al., 1999b).

The global slope, Equation 2.6, is calculated as the average elevation of the subcatchment minus the average elevation of the receiving channel divided by the average travel distance (Garbrecht et al., 1999b).

Sg =

Es Ec Lt

Equation 2.6

Sg is the global slope for the subcatchment, Es is the mean elevation of the subcatchment, and Ec is the mean elevation of the adjacent channel and Lt is the average travel distance of the subcatchment (Garbrecht et al., 1999b). Figure 2.6 shows the results from Garbrecht’s study in terms of slope.

Figure 2.6: Frequency Distribution of Subcatchment Slope (Garbrecht et. al., 1999b)

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