The Caris attitude editor was used to examine the heave, pitch, roll, and gyro information. The data was found to be very good so there was no smoothing or editing of the data. After gridding at 0.5 meters the data was analyzed line by line with the Caris swath editor. Depth spikes or points that were believed to be anomalous were flagged and rejected. The data was then regridded at 0.5 meters and exported all the accepted points in XYZ format, latitude, longitude and depth. A total of 20,734,132 points were exported. Post-processed XYZ data were gridded in Fledermaus, exported as an ArcView ascii file and converted to a raster grid with ArcToolbox.