Chesapeake Times, Vol 3 | October 2020 We have some new features in SonarWiz 7.7 that will assist in digitizing reflectors. The first tool is the Smart Reflector Tracking tool. It assists the user in tracing part or all of a reflector. It turns a job that used to entail many clicks into 2 clicks. Just enable the Smart Reflector Tracking tool at any time when in the Sub Bottom Digitizer Acoustic Reflector Tools by clicking the Auto-Fill button. Then the user simply sets a starting “anchor” point and an ending point. The tool then traces the reflector automatically between the 2 points. The user then …
Seafloor Multiple Reflections in Sub-bottom Profiles
Chesapeake Times, Vol 2 | July 2020 The interpretation of marine seismic profiles is complicated by the fact that operators must separate useful information about subsurface geometry from a wealth of background interference and noise typical of marine surveying. One of these problems is the presence of multiple reflections or reverberations. These slowly decaying wave trains usually arise in the water layer, which tends to trap the sound wave bouncing back and forth between the seabed and the sea surface. The most prominent of these multiples and usually the first to arrive are harmonics associated with the seafloor reflection. Take for example the …