Appalachain erosion rates, 5 myr timesteps, migrating divide, area incr 0.5%/myr 5.0 11.0 5.0 340 -72.21, 6.13, -0.0432, 7.192e-5 29.04 26.00 73.92 40.08 5.43 3.33 2.68 5.37 8.51 12.85 16.64 12.95 17.42 35.05 48.56 56.05 73.75 69.03 13.03 12.49 15.03 17.63 22.22 30.59 39.12 47.78 21.64 34.15 48.43 52.36 107.44 165.45 123.10 104.90 106.84