ocean bottom hydrophone instruments
1Ocean-bottom seismometer — (OBS) is a seismometer that is designed to record the earth motion under oceans and lakes from man made sources and natural sources …
2OBH — Oregon BushHackers (Computing » General) * On Beacon Hill (Business » Firms) * Oak Bay High School (Community » Schools) * Ocean Bottom Hydrophone Instruments (Academic & Science » Ocean Science) * Ocean Bottom Hydrophone Instruments (Business »… …
3Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
4Reflection seismology — (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth s subsurface from reflected seismic waves. The method requires a controlled seismic source of energy,… …
5Fishfinder — A fishfinder is a type of fathometer, both being specialized types of echo sounding systems, a type of Active SONAR. ( Sounding is the measurement of water depth, a historical nautical term of very long usage.) The fishfinder uses active sonar to …
6Project Azorian — Hughes Glomar Explorer Coordinates …
