Makin’ Mountains: by Chon Winger This program simulates a mountain by creating randomly oriented pyramid structures and then placed them on top of each other. The parameters: H = height of new pyramid (A,B) = coordinates of peak (random) P = “jaggedness” -1<p<0 gives very jagged mountains, while 0<p<0.5 gives very smooth hills Q= parameter resets the height Iter = number of iterations Equation for height of pyramids: H = (P*height)/(-2^(mod(iter,Q)))  Figure 1: Pyramid Figure 2: Mountain construction Prepared for UC Berkeley course EPS 109 “Computer Simulations in Earth and Planetary Science”, fall 2009, Instructor: B. Militzer

Makin’ Mountains: by Chon Winger  Makin’ Mountains: by Chon Winger Using the Perron model of landscape erosion, we can use this code to set the initial conditions of a mountain in order to model mountain erosion. These images were made by combining the two codes into one. Figure 3: original Figure 4: Eroded

Makin’ Mountains: by Chon Winger