deep-depth sonar
1Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
2Deep-sea exploration — is the investigation of physical, chemical, and biological conditions on the sea bed, for scientific or commercial purposes. Deep sea exploration is considered as a relatively recent human activity compared to the other areas of geophysical… …
3Depth sounding — refers to a historical nautical term for measuring depth; it is often referred to simply as sounding. Sounding is finding the depth of a given point in a body of water. Sounding data is used in bathymetry to make maps of the floor of a body of… …
4Deep sea communities — giant tubeworm Deep sea communities currently remain largely unexplored, due the technological and logististical challenges and expense involved in visiting these remote biomes. Because of the unique challenges (particularly the high barometric… …
5Depth charge — For other uses, see Depth charge (disambiguation). Mark IX Depth Charge used by the U.S. Navy late in World War II. Unlike the cylindrical, barrel shaped depth charge used earlier, the Mark IX is streamlined and equipped with canted fins to… …
6Deep water coral — Table coral, which can live in deep water (in this picture, it is in shallow, warm water) The habitat of deep water corals, also known as cold water corals, extends to deeper, darker parts of the oceans than tropical corals, ranging from near the …
7Deep Sea Drilling Program — Glomar Challenger The Deep Sea Drilling Project (DSDP) was an ocean drilling project operated from 1968 to 1983. The program was considered to be successful as evidenced by the data and publications that have resulted from it and is now supported …
8Deep Drone — U.S. Navy Deep Drone ROV The Deep Drone is a submersible remotely operated vehicle designed for mid water salvage for the United States Navy. One vehicle is based in Largo, Maryland, under the command of The U.S. Navy Supervisor of Salvage and… …
9deep scattering layer — Oceanog. a zone of biological origin within the ocean, at a depth of 900 1200 ft. (270 360 m), which scatters sounding echoes. * * * deep scattering layer, microscopic marine organisms that form a layer deep in the ocean, causing a reflection of… …
10Challenger Deep — Location of Challenger Deep within the Western Pacific Ocean The Challenger Deep is the deepest known point in the oceans, with a depth of 10,902 metres (35,768 ft) to 10,916 metres (35,814 ft) by direct measurement from submersibles, and… …
