Index of underwater diving

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
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

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

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

1 – 9[edit]





  • Dalton's law – Gas law describing pressure contributions of component gases in a mixture
  • The Darkness Beckons – 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) – 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 emerging from solution
  • 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 – Movement from high to low concentration
  • 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 calculate decompression status in real time
  • Dive guide (publication) – Travel guides for recreational diving
  • Dive leader – Recreational diving certification.
  • 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 – Powered device for diver mobility and range extension (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 – 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 – 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 controls the pressure of a breathing gas supply for diving
  • 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 – 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 and diving equipment to counteract excess buoyancy
  • Doing It Right (scuba diving) (DIR) – Technical diving safety philosophy
  • Dräger Dolphin – Semi-closed circuit recreational diving rebreather
  • Dräger Ray – Semi-closed circuit diving rebreather
  • 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 underneath a liquid
  • Dry suit – Watertight clothing that seals the wearer from cold and hazardous liquids
  • Duty of care – legal standard of care in activity
  • 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.




  • 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 – 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




  • 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




  • 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 gas separation – Technology for splitting specific gases out of mixtures
  • Metabolism – 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 – 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 – 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







  • Taifib – Indonesian amphibious reconnaissance unit
  • Taravana – Decompression sickness after breath-hold diving
  • Task loading – Relationship between operator capacity and the accumulated activities that 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 – 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 – Fast-moving tidal flow passing through a constriction, forming waves, eddies and strong currents
  • Tide – Rise and fall of the sea level under astronomical gravitational influences
  • Timeline of diving technology – Chronological list of notable events in the history of underwater diving equipment
  • Tissue (biology) – A group of cells having similar appearance and performing the same function is known as a tissue .
  • Torricellian chamber – 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 – 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





See also[edit]