Emergency ascent – An ascent to the surface by a diver in an emergency.Ear clearing – An ascent to the surface by a diver in an emergency.Ascending and descending (diving) – Procedures for safe ascent and descent in underwater diving.The bailout cylinder can be seen slung at the diver's left side.ĭiving procedures – Standardised methods of doing things that are known to work effectively and acceptably safely Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to the order of a day at a time, either exposed to the ambient pressure or isolated by a pressure resistant suit, to interact with the underwater environment for pleasure, competitive sport, or as a means to reach a work site for profit or in the pursuit of knowledge, and may use no equipment at all, or a wide range of equipment which may include breathing apparatus, environmental protective clothing, aids to vision, communication, propulsion, maneuverability, buoyancy and safety equipment, and tools for the task at hand.ĭiving activity, by type Modes of underwater diving A human activity – intentional, purposive, conscious and subjectively meaningful sequence of actions.Underwater diving can be described as all of the following: What type of thing is underwater diving? 13 Researchers in diving medicine and physiology.12 Underwater diving in popular culture.11.8 Authors of publications about diving.10.5 Diving medical research organisations.10.4 Underwater environmental research organisations.10.3 Diving industry trade associations.10.2 Diver nature conservation organisations.9.3 Organisations setting international standards and codes of practice for diving and diver training.
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9 Diver training, certification, registration and standards.8.2 Notable underwater salvage operations.6.2 Notable diving incidents rescues and fatalities.5 Diving medicine, disorders and treatment.3.2.1 Underwater work tools and equipment.3.1.8 Remotely operated underwater vehicles.3 Diving and support equipment, tools and weapons.1 What type of thing is underwater diving?.
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