Auxiliary material for Paper 2005GL022834 Reflection and tunneling of ocean waves observed at a submarine canyon J. Thomson, WHOI-MIT Joint Program in Oceanography S. Elgar, Woods Hole Oceanographic Institution T.H.C. Herbers, Naval Postgraduate School Geophysical Research Letters, vol. XX, DOI: 10.1029/2005GL02283 The auxiliary material consists of an appendix describing a method to determine the reflection and tunneling of ocean waves at a submarine canyon using observations of pressure and velocity at either side of the canyon. The appendix is formated as a latex document (2005GL022834-methods.tex) because of the substantial number of equations required to describe the method. A figure (2005GL022834-methods-figureA1.eps) and caption will be included upon creation of a dvi file from the latex source (i.e., at a unix or linux command prompt, run "latex 2005GL022834-methods.tex" and then print using "dvips 2005GL022834-methods.dvi"). Alternatively, a pdf of this appendix is available to download from http://science.whoi.edu/users/pvlab/REFLECTION_auxiliary/2005GL022834-methods.pdf, and hardcopies can be obtained by e-mailing jthomson@whoi.edu or elgar@whoi.edu.