EAS 553 Home Page:
http://www.eas.purdue.edu/~braile/eas553/eas553home.htm
Prof. Lawrence W. Braile
Department of Earth and Atmospheric Sciences
Last updated: February 12, 2003
Matlab Codes (click on any of the following
files to download; save in your Matlab work folder;
see EAS 553 notes for additional information, program listings and examples):
Refraction:
refrin.m Refraction (head wave) inversion for plane, homogeneous dipping layers using slope-intercept method.
refrdat.m Sample data set for refrin.m.
txcurv.m Calculate refraction and reflection times for n plane, homogeneous, dipping layers.
rfltim.m Reflection times – needed by txcurv.
rfrtim.m Refraction times – needed by txcurv.
angles.m Snell’s law angle calculations – needed by txcurv.
Reflection:
txrefl.m Reflection travel times for a layered model – exact times and one-layer approximations using Vave and Vrms.
rfltim.m Reflection travel times (exact) using Snell’s law ray trace through layered model.
t2x2.m T-squared, X-squared program.
txdat.m Sample data for t2x2 program.
linfit.m Least squares straight line fit program for t2x2.m.
txline.m Line drawing function for t2x2.m.
EAS 553 Data Source Links: