Figure14

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Figure 14. Plots of contributing area per unit contour length (a/b) versus slope (tanq) for convergent (circles) and divergent (crosses) elements in (a) Tennessee Valley, California (see Dietrich et al., 1992, 1993); Mettman Ridge (based on 5 m contour data derived from aerial photography before clear cutting began), and Split Creek (based on 5 m contour data derived from aerial photography). The T/q values on the saturation threshold solid lines correspond to log (q/T) values of -3.5, -2.5 and -2.2 from top to bottom in each graph. Dashed lines represent limit to slope stability model(from Montgomery and Dietrich, 1994).

figure14a.GIF (65668 bytes)

figure14b.GIF (52379 bytes) figure14c.GIF (51775 bytes)

 

Copyright 1998, William Dietrich and David Montgomery
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Last updated: November 01, 1998.