Simple Instructions for the Scarp Diffusion Lab
This software was written by George Hilley, 2002 (hilley@geo.uni-potsdam.de)
Ramon Arrowsmith wrote these instructions.

1)  Down load the zip file and unzip it.
2)  Put all of the files in the same directory.
3)  This software requires at least Matlab 5.3 and may not run well on the student version.  The main problem with the version 5 student version is its array size limitation.  You may be able to work with it anyway, but you will have to cut down the discretization and numbers of evaluations.
4) To run the program, be sure that the appropriate directory is in the working path or cd to it and type:
» scarpdater_gui
5)  The main modules of the program are:
a) Plot->Single event forward models.  This lets you play with the various parameters that control the form of the final idealized scarp.
b) File->Import.  These functions let you import variously formatted profile data that you may then try to morphologically date.
c) Once you have imported a profile dataset, the first step is to set up the model with Edit->Offset profile.  This function lets you set the center of the profile, flip it, and determine the far field fan slope b and the scarp half offset a.
d) After setting up the profile, you can Calculate->Calculate Finite-Scarp RMS.  In this function, you specify the half offset a and the scarp initial slope theta.  Then you specify the ranges and step sizes (n--make these smaller for the student version) for morphologic age kt, far field slope b, and scarp center offset o.  The program will then run through all of these scenarios and assess the RMS for all permutations.
e) Once it has run, it will report the best fit, and you can plot the single event sensitivity analyses, isosurfaces, and contours.

6) I have included a sample input file hx5msquared.txt that is the exact profile resulting from a 20 meter long profile centered at 0,0 with a = 1m, theta = 35, b = 5, and kt = 5m^2.
Use this one to test your abilities and to compare with other datasets you may wish to analyze.


 