Index of underwater diving

The following index is provided as an overview of and topical guide to underwater diving:

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

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 and safety equipment, and tools for the task at hand.

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  • Dalton's law  Gas law describing pressure contributions of component gases in a mixture
  • The Darkness Beckons  A history of UK cave diving by Martyn Farr
  • Davis Submerged Escape Apparatus  Early submarine escape oxygen rebreather also used for shallow water diving.
  • Dead space (physiology)  The volume of inhaled air that does not take part in the gas exchange
  • Decima Flottiglia MAS  Italian naval commando frogman unit of the Fascist era
  • Decompression buoy  Inflatable surface marker buoy deployed from underwater
  • Decompression (diving)  The reduction of ambient pressure on underwater divers after hyperbaric exposure and the elimination of dissolved gases from the diver's tissues
  • Decompression equipment  Equipment used by divers to facilitate decompression
  • Decompression illness  Disorders arising from ambient pressure reduction
  • Decompression practice  Techniques and procedures for safe decompression of divers
  • Decompression sickness  Disorder caused by dissolved gases in the tissues forming bubbles during reduction of the surrounding pressure
  • Decompression theory  Theoretical modelling of decompression physiology
  • Decompression trapeze  Horizontal bars suspended at decompression stop depths
  • DeepC  Autonomous underwater vehicle powered by a fuel cell
  • Deep diving  Underwater diving to a depth beyond the norm accepted by the associated community
  • Diamond Reef System  System for training divers in buoyancy, trim and maneuvering skills
  • DEPTHX  Autonomous underwater vehicle for exploring sinkholes in Mexico
  • Diffusion  Net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential)
  • Distance line/dive reel/guide line  Line deployed by scuba divers for navigation
  • Dive boat  Boat used for the support of scuba diving operations
  • Dive computer, also known as Decompression computer  Instrument to record dive profile and calculate decompression obligations in real time
  • Dive guide  A recreational dive leader certification and role
  • Dive leader  International minimum standard for a person professionally leading a group of certified recreational divers
  • Dive light  Light used underwater by a diver
  • Dive log  Record of diving history of an underwater diver
  • Divemaster  Recreational dive leader certification and role
  • Dive planning  The process of planning an underwater diving operation
  • Dive team  A group of people working together to enhance dive safety and achieve a task
  • Diver certification  Certification as competent to dive to a specified standard
  • Diver communications  Methods used by underwater divers to communicate
  • Diver down flag  Flag signal indicating divers are in the water nearby
  • Diver navigation  Underwater navigation by scuba divers
  • Diver propulsion vehicle (DPV|Diver propulsion vehicle]] (DPV]]
  • Diver rescue  Rescue of a distressed or incapacitated diver
  • Diver training  Processes by which people develop the skills and knowledge to dive safely underwater
  • Diver trim  Balance and orientation skills of an underwater diver
  • Divers Alert Network (DAN)  International group of not-for-profit organizations for improving diving safety
  • Diver's attendant  The member of a dive team who assists the diver at the surface and tends the diver's umbilical or lifeline
  • Divers Institute of Technology  A private, commercial educational institution for the training of commercial divers
  • Diver's pump  Manually powered surface air supply for divers
  • Diver's umbilical  A hose and cable bundle which supplies breathing gas, communications and other services to a diver
  • Diving air compressor, also known as Diving compressor  Machine used to compress breathing air for use by underwater divers
  • Diving bell  Chamber for transporting divers vertically through the water
  • Diving chamber  Hyperbaric pressure vessel for human occupation used in diving operations
  • Diving cylinder  High pressure compressed gas cylinder used to store and supply breathing gas for diving
  • Diving Diseases Research Centre (DDRC)  British hyperbaric medical organisation
  • Diving disorders  Physiological disorders resulting from underwater diving
  • Diving equipment  Equipment used to facilitate underwater diving
  • Diving Equipment and Marketing Association (DEMA)  International trade association for the recreational diving equipment industry
  • Diving hazards  The agents and situations that pose a threat to the underwater diver
  • Diving helmet  Rigid head enclosure with breathing gas supply worn for underwater diving
  • Diving instructor  Person who trains and assesses underwater divers
  • Diving mask  Watertight air-filled face cover with view-ports for improving underwater vision
  • Diving Medical Advisory Council (DMAC)  Independent organisation of diving medical specialists from Northern Europe
  • Diving medical examiner  A medical practitioner registered to assess medical fitness to dive
  • Diving medical practitioner  A medical practitioner registered to assess medical fitness to dive, manage diving accidents, plan safety for professional diving operations, provide advanced life support, acute trauma care and general wound care.
  • Diving medical technician  a member of a dive team who is trained in advanced first aid and fit to provide treatment in a hyperbaric chamber in an emergency
  • Diving medicine  Diagnosis, treatment and prevention of disorders caused by underwater diving
  • Diving physics  Aspects of physics which affect the underwater diver
  • Diving reflex  The physiological responses to immersion of air-breathing vertebrates
  • Diving regulator  Mechanism that reduces pressure of a gas supply and provides it to the diver at ambient pressure
  • Diving safety  Safety of underwater diving activities
  • Diving Science and Technology (DSAT)  PADI affiliate and developer of recreational decompression planning tools
  • Diving shot, also known as Shot line  Substantial weighted near-vertical line with buoy
  • Diving stage  A platform on which one or two divers stand which transports them vertically through the water
  • Diving suit  Garment or device designed to protect a diver from the underwater environment
  • Diving supervisor  Professional diving team leader responsible for safety
  • Diving support vessel  A ship used as a floating base for professional diving projects
  • Diving systems technician  A competent person who maintains and repairs diving life-support equipment
  • Diving weight  Ballast carried by a diver to counteract buoyancy or adjust trim
  • Diving weighting system  Ballast carried by underwater divers to counteract buoyancy
  • Doing It Right (scuba diving) (DIR)  Technical diving safety philosophy
  • Dräger Dolphin  Semi-closed circuit recreational diving rebreather
  • Dräger Ray  Semi-closed circuit recreational diving rebreather designed to use standard nitrox breathing gas mixtures
  • Drift diving  Scuba diving where the diver is intentionally transported by the water flow
  • Drill Master diving accident  Fatal diving bell accident off Norway in 1974
  • Drowning  Respiratory impairment resulting from being in or under a liquid
  • Dry suit  Watertight clothing that seals the wearer from cold and hazardous liquids
  • Duty of care  A legal obligation to provide a standard of reasonable care when performing an activity that could foreseeably harm others
  • Dynamic apnea  Freediving disciplines where the breath-hold diver swims horizontally under water with or without fins
  • Dysbaric osteonecrosis  Ischemic bone disease caused by decompression bubbles
  • Dysbarism  Medical conditions resulting from changes of ambient pressure.

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  • Gas blending  Producing special gas mixtures to specification
  • Gas blending for scuba diving  Mixing and filling cylinders with breathing gases for use when scuba diving
  • Gas exchange  The process by which gases diffuse through a biological membrane
  • Gay-Lussac's law  Relationship between pressure and temperature of a gas at constant volume.
  • Global Underwater Explorers (GUE)  Recreational/technical scuba training and certification agency
  • Goldfinder  Autobiography of British diver and treasure hunter Keith Jessop
  • Gradient factor in decompression modelling  A way for users to adjust the conservatism of a decompression algorithm in software
  • Green Fins  Organisation in South East Asia for preservation of coral reefs by improving diver behavior
  • GRUMEC, also known as Brazilian commando frogmen  Brazilian Navy special forces diving unit
  • Gyrojet  Firearm that fires small rocket projectiles

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  • Job safety analysis (JSA)  Procedure to integrate safety practices into a particular task
  • Johnson Sea Link accident  Manned submersible incident in which two divers died
  • Jonline  A short line used by scuba divers to clip themselves to something

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  • Marine Commandos  Special operations group of the Lebanese Navy
  • Master diver (United States Navy)  Senior diver rating in US Navy
  • Master Instructor  A certificate given in recognition of a minimum level of experience in training divers after certification as a Diving Instructor, issued by PADI and SSI
  • Master Scuba Diver  The highest non-leadership recreational scuba diver certification issued by some agencies
  • Maximum operating depth  Depth of seawater at which a specified breathing gas mixture will have a limiting maximum oxygen partial pressure
  • Maya AUV India  Autonomous underwater vehicle from National Institute of Oceanography, India
  • Media diving  Underwater diving in support of the media industries
  • Medical fitness to dive  The medical fitness of a person to function safely underwater under pressure
  • Membrane method of gas concentration  A method of producing nitrox by passing air though a selectively permeable membrane to reduce nitrogen fraction
  • Metabolism  The set of life-sustaining chemical transformations within the cells of organisms
  • Metre sea water  Unit of pressure equal to one tenth of a bar
  • Military diving  Underwater diving in a military context by members of an armed force
  • Minedykkerkommandoen  Norwegian Navy clearance diver unit
  • Minentaucher  Mine clearance divers of the German Navy
  • Mitchell, Simon  New Zealand physician and author on diving medicine
  • Mk 1 Underwater Defense Gun  Underwater firearm developed by the United States during the Cold War
  • Molecular diffusion  The thermal motion of liquid or gas particles at temperatures above absolute zero
  • Momsen, Charles  American pioneer in submarine rescue for the United States Navy
  • Monofin  Single blade swimfin attached to both feet
  • Moon pool  An opening in the base of a hull, platform, or chamber giving access to the water below
  • Motorised Submersible Canoe  WWII British frogman delivery vehicle
  • Muck diving  Recreational diving on a loose sedimentary bottom

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  • Taifib  Indonesian amphibious reconnaissance unit
  • Taravana  Decompression sickness after breath-hold diving
  • Task loading  The relationship between operator capacity and the accumulated activities than must be done
  • Technical diving  Extended scope recreational diving
  • Technical Diving International (TDI)  Technical diver training and certification agency
  • Technical Extended Range (TXR)  Recreational scuba and freediving training and certification agency
  • Testing and inspection of diving cylinders  Periodical inspection and testing to revalidate fitness for service
  • Thalmann algorithm  Recent US Navy algorithm for modelling of inert gases entering and leaving body tissues as pressure changes
  • Thalmann, Edward D.  American hyperbaric medicine specialist and decompression researcher
  • Therapeutic recompression  Recompression to reduce symptoms of decompression illness
  • Thermocline  A distinct layer in a large body of fluid in which temperature changes more rapidly with depth than it does in the layers above or below
  • Thermodynamic model of decompression  Early model in which decompression is controlled by the volume of gas bubbles coming out of solution
  • Theseus (AUV)  Large autonomous underwater vehicle for laying fibre optic cable
  • Tidal race  A fast-moving tidal flow passing through a constriction, forming waves, eddies and strong currents
  • Tide  The daily, twice daily or similar rise and fall of the sea.
  • Timeline of diving technology  A chronological list of notable events in the history of underwater diving
  • Tissue (biology)  Cellular organization level
  • Torricellian chamber  An air space in a cave chamber with pressure below atmospheric
  • Towboard  Underwater survey equipment used to tow a diver
  • Tremie  Equipment for underwater concrete placement
  • Triger, Jacques  French geologist who invented the pressurised caisson
  • Trimix (breathing gas)  Breathing gas consisting of oxygen, helium and nitrogen
  • Trimix Scuba Association (TSA)  Recreational technical scuba training and certification agency
  • Trongle  Device used on submarines to help swimmers to locate a submerged submarine
  • Turbidity  The cloudiness of a fluid caused by large numbers of particles that are generally invisible to the naked eye
  • Türkiye Sualtı Sporları Federasyonu (TSSF)  Turkish national governing body for underwater sport and lifesaving

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See also

References

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