Figure 17. Detailed planar view from the digital terrain model produced from bathymetric data collected during National Oceanic and Atmospheric Administration survey H12012 showing transverse sand waves on top of a shallow shelf platform and locations of stations 012-6 and 012-8. Note that the transition from the bordering relatively flat sea floor is abrupt and that megaripples progressively give way to sand waves. Location of view is shown in figure 13.