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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 ...
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 ...
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.
The largest model is the REMUS 6000 at 3.84 metres (12.6 ft) long and 71 centimetres (28 in) in diameter; it is named after its maximum diving depth of 6000m. [4] It can travel at speeds of up to 5 knots (9.3 km/h) and has an endurance of up to 22 hours. [4]
Archaeologists discovered several decoys made from tule plants and duck feathers, dating to about 300-100 BCE in a cave near Lovelock, Nevada. [5] Many modern tribes have traditions of decoy crafting. [6] [7] Cree people traditionally make goose decoys out of tamarack twigs. [8] [9] Wooden carved decoys arose in North America in the 19th and ...
The MMIST CQ-10A SnowGoose is a cargo delivery unmanned aerial vehicle that has reached IOC (Initial Operational Capability) with the United States Armed Forces with the delivery of 15 vehicles.
The vessel underwent a complete refit in Salina, Kansas, and Vancouver, Canada, and then was moved to Tenerife, Canary Islands, where it got certified and insured. It was re-engineered to provide a versatile deep water platform to meet the needs of the underwater research community.
Joseph Beverly MacInnis CM (born 2 March 1937) is a Canadian physician, author, and diver. [1] In 1974, MacInnis was the first scientist to dive in the near-freezing waters beneath the North Pole. [2]