Wikipedia

Index of underwater diving: A–C

See the Glossary of underwater diving terminology for definitions of technical terms, jargon, diver slang and acronyms used in underwater diving
See the Index of recreational dive sites for an alphabetical listing of articles about places which are recreational dive sites
See the Index of underwater divers for an alphabetical listing of articles about underwater divers
See the Outline of recreational dive sites for a hierarchical listing of articles about sites used for recreational diving
See the Outline of underwater diving for a hierararchical listing of underwater diving related articles grouped by topical relevance

The following index is provided as an overview of and topical guide to underwater diving: Links to articles and redirects to sections of articles which provide information on each topic are listed with a short description of the topic. When there is more than one article with information on a topic, the most relevant is usually listed, and it may be cross-linked to further information from the linked page or section.

Two divers wearing lightweight demand helmets stand back-to-back on an underwater platform holding on to the railings. The photo also shows the support vessel above the surface in the background.
Surface-supplied divers riding a stage to the underwater workplace

Underwater diving can be described as all of the following:

  • A human activity – intentional, purposive, conscious and subjectively meaningful sequence of actions. 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 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 control and safety equipment, and tools for the task at hand.

There are seven sub-indexes, listed here. The tables of content should link between them automatically:

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  • AFLOLAUN – Apparatus for laying out line and underwater navigation
  • Aggressive decompression – Decompression practice accepting higher risk of DCS to reduce in-water time

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  • AIDA Hellas – National representative of AIDA International in Greece
  • AIDA International (AIDA) – Worldwide rule- and record-keeping body for competitive breath-hold events
  • Air embolism – Vascular blockage by air bubbles
  • Air-integrated dive computer – Dive computer which displays cylinder breathing gas pressure
  • Air integration – Use of the dive computer to display cylinder gas pressure
  • Airlift (dredging device), also known as air-lift – Dredging device using injected air to move water and entrained load up a pipe
  • Airlift dredge – Dredging device using injected air to move water and entrained load up a pipe
  • Airlift dredging – Removing underwater sediment using an airlift pump
  • Air line – Tube or hose carrying a compressed air supply
  • Air-line diving, also known as airline diving – Basic mode of surface-supplied underwater diving
  • Airlock, also known as air-lock – Compartment for transfer between environments with different atmospheres
  • Air lock diving bell – Type of mobile pressure caisson
  • Air lock diving-bell plant – Underwater work support barge used at Gibraltar
  • Air spread – The topside base for surface-supplied air diving operations
  • Air top, also known as air top-up – Modifying or completing a gas blend by adding compressed air

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  • Anchor pattern – Arrangement of anchors allowing precise positioning of a vessel
  • Andersson, Erik – Swedish manufacturer of standard diving equipment
  • Ankle strap (diving) – Staps worn over the ankles of dry suits to prevent the boots from pulling off when in use
  • Ankle weights (diving) – Diver trim weights worn at the ankles
  • ANMP – Association nationale des moniteurs de plongée
  • ANSTI breathing simulator, also known as ANSTI machine, ANSTI breathing machine – Machine to measure work of breathing of diving apparatus
  • Anti-fog – Chemicals that prevent the condensation of water as small droplets on a surface
  • Anti-frogman techniques – Methods of protection from incursions by divers and swimmers
  • Antipodes (submersible) – Commercial submarine built in 1973
  • AN/WQX-2 – Diver detection sonar used in defense against underwater incursions
  • Anxiety – Unpleasant state of inner turmoil over anticipated events

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  • Bifin – Swimfin type with single foot pocket
  • Bikkers – Dutch manufacturer of standard diving equipment
  • Biological hazard – Biological material that poses serious risks to the health of living organisms
  • BioMarine – American manufacturer of diving rebreathers

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  • Boarding stirrup – A suspended step to help divers lift themselves from the water into a boat
  • Boat diving – Procedures specific to diving from boats
  • Boaty McBoatface – British autonomous underwater vehicle
  • Bolt snap – Sprung slide gated snap hook
  • Bond, George F. – US Navy physician and diving medicine and saturation diving researcher
  • Booster pump – Machine to increase pressure of a fluid
  • Bottom gas – Gas breathed during the deep part of a dive
  • Bottom time – Elapsed time underwater until th start of ascent to the surface
  • Bottom timer – An electronic instrument that records depth and elapsed time data on an underwater dive
  • Bounce dive – Non-saturation dive profile with meaning depending on context
  • Boyle, Robert – Anglo-Irish scientist (1627–1691)
  • Boyle's law – Relation between gas pressure and volume

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  • HMS Challenger K07 – Royal Navy saturation diving support vessel
  • Chamber operation – Operation of a hyperbaric chamber in support of underwater diving
  • Chamber operator – A person who operates a diving chamber
  • Charging pressure – Rated pressure for filling a pressurised gas container
  • Charles's law – Relationship between volume and temperature of a gas at constant pressure
  • Chase boat – A tender generally not carried by the main vessel
  • Checklist – Aide-memoire to ensure consistency and completeness in carrying out a task
  • Checkout dive – Short dive to test a skill or equipment
  • Chemical hazard – Non-biological hazards of hazardous materials
  • Chief of safety – Supervisor of the safety team at a freediving competition
  • Christmas tree ladder – Ladder with rungs cantilevered from a central rail

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  • CUMA – Canadian military diving rebreather
  • Current (hydrology) – Flow of water in a stream caused by gravity
  • Current shear – Variation of flow rate transverse to flow direction
  • Current (stream) – Flow of water in a natural watercourse due to gravity
  • CURV – Early remotely operated underwater vehicle

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