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This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving.The definitions listed are in the context of underwater diving.
A technical diver using a closed circuit rebreather with open circuit bailout cylinders returns from a 600-foot (180 m) dive. The recreational diving depth limit set by the EN 14153-2 / ISO 24801-2 level 2 "Autonomous Diver" standard is 20 metres (66 ft). This is the depth to which a diver is assumed competent to dive in terms of the standard. [18]
Repetitive dive which is shallower than the previous dive. [56] Multilevel dive in which a later level is shallower than an earlier level. [56] forward roll entry. See: Scuba skills#Entries. Water entry technique used by scuba divers from a boat or platform too high or unsuitable for backward roll entry. The diver bends forward at the hips and ...
The common term for a place at which one may dive is a dive site (from "dive" and "site", meaning "the place, scene, or point of an occurrence or event". [64]) As a general rule, professional diving is done where the work needs to be done, and recreational diving is done where conditions are suitable.
For example, a medical statement or examination for fitness, pre-dive site assessment and briefing, safety drills, thermal protection, equipment redundancy, alternative air source, buddy checks, buddy or team diving procedures, dive planning, use of dive computers to monitor and record the dive profile and decompression status, underwater hand ...
Recreational scuba diver The undersea kelp forest of Anacapa Island off of the coast of Oxnard, California Diver looking at a shipwreck in the Caribbean Sea. Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. [1]
One example being its "Janus 4" open-sea dive to 501 metres (1,640 ft) in 1977. [ 2 ] [ 3 ] The open-sea diving depth record was achieved in 1988 by a team of COMEX and French Navy divers who performed pipeline connection exercises at a depth of 534 metres (1,750 ft) in the Mediterranean Sea as part of the "Hydra 8" programme employing heliox ...
For example, due to the long swims involved in California shore diving, divers use snorkels until they reach a good start point for a dive to maximise air supply for the actual dive. [ 96 ] A snorkel can be a useful substitute for a pocket mask for in-water EAR , a diving accident victim can be towed and have rescue breathing administered ...