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Sonar mapping of the Challenger Deep by the DSSV Pressure Drop employing a Kongsberg SIMRAD EM124 multibeam echosounder system (26 April – 4 May 2019). The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench, which itself is an unusually deep feature in the ocean floor.
The sonar mapping of the Challenger Deep was possible by its Simrad EM120 sonar multibeam bathymetry system for deep water. The sonar system uses phase and amplitude bottom detection, with an accuracy of better than 0.2% of water depth across the entire swath (implying that the depth figure is accurate to ± 22 metres (72 ft; 12 fathoms)). [18 ...
The Four Poles Challenge is an adventurer's challenge to reach the North Pole, the South Pole, the summit of Mount Everest and Challenger Deep.. The first person to reach all four locations was Victor Vescovo, who reached the top of Mount Everest on May 24, 2010, skied the last degree to the geographic South Pole on January 14, 2016, skied the last degree to the geographic North Pole in April ...
Kelly Walsh after completing an 11,000m dive to Challenger Deep, the deepest location on Earth, in 2020 (Mike Moore / EYOS Experience) Mr Walsh became the 11th person to make a successful dive to ...
Challenger ' s discovery of this depth was a key finding of the expedition in broadening oceanographic knowledge about the ocean's depth and extent; the depression, the Challenger Deep, now bears the name of the vessel and its successor, HMS Challenger II, which in 1951 identified a depth of 5,944 fathoms nearby. [22]
Location of the Challenger Deep in the Mariana Trench. Bathymetric data obtained during the course of the expedition (December 1872 – May 1876) of the British Royal Navy survey ship HMS Challenger enabled scientists to draw maps, [5] which provided a rough outline of certain major submarine terrain features, such as the edge of the continental shelves and the Mid-Atlantic Ridge.
Nereus was a hybrid uncrewed autonomous underwater vehicle (HROV, a type of remotely operated underwater vehicle) built by the Woods Hole Oceanographic Institution (WHOI). ). Constructed as a research vehicle to operate at depths of up to 11,000 metres (36,000 ft), it was designed to explore Challenger Deep, the deepest surveyed point in the global oc
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