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The standard measurement for underwater visibility is the distance at which a Secchi disc can be seen. The range of underwater vision is usually limited by turbidity. In very clear water visibility may extend as far as about 80m, [18] and a record Secchi depth of 79 m has been reported from a coastal polynya of the Eastern Weddell Sea ...
While ocean color is a key theme of ocean optics, optics is a broader term that also includes the development of underwater sensors using optical methods to study much more than just color, including ocean chemistry, particle size, imaging of microscopic plants and animals, and more.
Underwater computer vision is a subfield of computer vision. In recent years, with the development of underwater vehicles ( ROV, AUV, gliders), the need to be able to record and process huge amounts of information has become increasingly important. Applications range from inspection of underwater structures for the offshore industry to the ...
It relies on hydrodynamic forces for anti-lift force. It is 4.5 metres long, capable of 360-degree "hydrobatic" manoeuvres, can dive up to 40 metres underwater, and seats one pilot and two passengers in an open cockpit (necessitating wearing scuba gear). [5] [6] Occupants have a "windscreen" to protect them from the water's slipstream ...
This company is known worldwide for its technology in regard to underwater exploration at great depths. [citation needed] Its line of business includes: [citation needed] hyperbaric testing facilities, oceanographic research ships (Minibex and Janus), testing pool. [clarification needed] COMEX carried out pioneering work in very deep saturation ...
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Diver detection sonar (DDS) systems are sonar and acoustic location systems employed underwater for the detection of divers and submerged swimmer delivery vehicles (SDVs). The purpose of this type of sonar system is to provide detection, tracking and classification information on underwater threats that could endanger property and lives.
Media diving is professional underwater photography and filming, and related underwater work, often in support of television documentaries or films with underwater footage. Media divers are likely to be skilled camera operators who trained as divers to expand the scope of their operations, though some have started as recreational divers and ...