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Underwater diving breathing gas supplied from the surface
Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either
Surface-supplied_diving
Equipment used specifically for surface supplied diving
Surface-supplied diving equipment (SSDE) is the equipment required for surface-supplied diving. The essential aspect of surface-supplied diving is that
Surface-supplied diving equipment
Surface-supplied_diving_equipment
Underwater diving procedures
Surface-supplied diving skills are the skills and procedures required for the safe operation and use of surface-supplied diving equipment. Besides these
Surface-supplied diving skills
Surface-supplied_diving_skills
Equipment used to facilitate underwater diving
used. Surface-supplied diving – mostly used in professional diving. This category includes: Surface oriented surface-supplied diving (Bounce diving), where
Diving_equipment
Professional diving on industrial projects
the work and location, but normally surface oriented surface-supplied diving equipment is used. Saturation diving may be used for major projects in deep
Commercial_diving
Processes to develop the skills and knowledge to dive safely underwater
environmental impact. Surface supplied diving skills are the skills and procedures required for the safe operation and use of surface-supplied diving equipment.
Diver_training
Developments over time in the human activity
renewable supply of air could be provided to the diver at depth, and progressed to surface-supplied diving helmets—in effect miniature diving bells covering
History_of_underwater_diving
Facility for supporting saturation diving projects
systems Breathing gas supply and distribution, and recycling and purification. The divers use surface-supplied umbilical diving equipment, using a breathing
Saturation_diving_system
Ballast carried to counteract buoyancy
and effort is required throughout the dive. In surface-supplied diving, and particularly in saturation diving, the loss of weights followed by positive
Diving_weighting_system
Diving under a physical barrier to a direct vertical ascent to the surface
the exit. There are some applications where scuba diving is appropriate and surface-supplied diving is not, and other where the reverse is true. In other
Penetration_diving
Container to supply high pressure gas for diving operations
bottle. It may also be used for surface-supplied diving or as decompression gas. A diving cylinder may also be used to supply inflation gas for a dry suit
Diving_cylinder
Portable apparatus to recycle breathing gas
surrounding water. Surface-supplied diving equipment may incorporate rebreather technology either as a gas reclaim system, where the surface-supplied breathing
Rebreather
Hyperbaric pressure vessel for human occupancy used in diving operations
surface supplied diving operations, with the divers' excursion umbilicals (air supply, etc.) attached to the diving chamber rather than to the diving
Diving_chamber
Equipment for controlling the buoyancy of a diver
is a standard item of scuba diving equipment, though not always necessary, and an optional item for surface-supplied diving, where neutral or positive
Buoyancy_compensator_(diving)
Techniques requiring specific equipment and procedures
A mode of diving, or diving mode, is a particular way to dive underwater that requires specific equipment, procedures and techniques, and may expose the
Modes_of_underwater_diving
Things people do while diving underwater
Diving activities Diving activities are the things people do while diving underwater. People may dive for various reasons, both personal and professional
Diving_activities
Descending below the surface of the water to interact with the environment
diver may dive on breath-hold (freediving) or use breathing apparatus for scuba diving or surface-supplied diving, and the saturation diving technique
Underwater_diving
Japanese pearl divers
occupation. ama (海女) – a sea-diving fisherwoman ama (海士) – a sea-diving fisherman ama (海人), kaijin (海人) – a sea-diving fisherperson of either gender
Ama_(diving)
Mechanism that controls the pressure of a breathing gas supply for diving
from a compressor or high-pressure storage cylinders at the surface in surface-supplied diving. A gas pressure regulator has one or more valves in series
Diving_regulator
Equipment used by divers to facilitate decompression
recreational dive decompression is becoming the standard and their use is also common in occupational scientific diving. Their value in surface supplied commercial
Decompression_equipment
Loss of consciousness at a shallow depth during a dive
while scuba diving, usually when using a rebreather, and occasionally while surface-supplied diving. Two very different breathhold dive profiles can
Shallow-water_blackout
Professional diving in support of the oil and gas industry
Commercial offshore diving, sometimes shortened to just offshore diving, generally refers to the branch of commercial diving, with divers working in support
Commercial_offshore_diving
List of articles related to underwater diving grouped by topical relevance
apparatus Surface-supplied diving – Underwater diving breathing gas supplied from the surface Surface oriented diving – Underwater diving in which the
Outline_of_underwater_diving
Arrangement and function of the components of regulators for underwater diving
systems to conserve expensive helium based breathing gases in surface-supplied diving, and to control the safe exhaust of exhaled gas from built-in breathing
Mechanism of diving regulators
Mechanism_of_diving_regulators
Underwater diving under ice
Ice diving is a type of penetration diving where the dive takes place under ice. Because diving under ice places the diver in an overhead environment
Ice_diving
Techniques and procedures for safe decompression of divers
decompression sickness. Use of some drugs: Breathhold diving after scuba or surface supplied diving: Bubble formation is more likely after significant decompression
Decompression_practice
Swimming underwater, breathing gas carried by the diver
Scuba diving is an underwater diving mode where divers use breathing equipment completely independent of a surface breathing gas supply, and therefore
Scuba_diving
Diving mode and decompression technique
disruption of thermal balance. Most saturation diving procedures are common to all surface-supplied diving, but there are some which are specific to the
Saturation_diving
Chamber for transporting divers vertically through the water
used for surface oriented surface-supplied deep air diving, and closed bells are used for saturation diving and surface oriented mixed gas diving. These
Diving_bell
British ocean liner (1907–1915)
from the Discovery Channel was also to be on hand. A dive team from Cork Sub Aqua Club, diving under licence, discovered 15,000 rounds of the .303 (7
RMS_Lusitania
Australian conservationist (1962–2006)
diving Surface-supplied diving Unmanned diving Diving equipment Cleaning and disinfection of personal diving equipment Human factors in diving equipment
Steve_Irwin
Equipment used in the support of an underwater diving operation
to the actual diving, being there to make the dive easier or safer, such as a surface decompression chamber. Some equipment, like a diving stage, is not
Diving_support_equipment
Risk management of underwater diving activities
the same dive. Surface-supplied diving is diving using equipment supplied with breathing gas using a diver's umbilical from the surface, either from the
Diving_safety
Underwater diving in a known hazardous materials environment
of surface supplied diving equipment – scuba equipment is generally not permitted for hazmat diving. One of the features common to hazmat diving equipment
Hazmat_diving
Gas used for human respiration
breathing equipment and enclosed habitats such as scuba equipment, surface supplied diving equipment, recompression chambers, high-altitude mountaineering
Breathing_gas
Copper helmet with rubberised canvas diving suit and weighted boots
the human activity Surface-supplied diving – Underwater diving breathing gas supplied from the surface Timeline of diving technology – Chronological list
Standard_diving_dress
German filmmaker (1902–2003)
motion shots. Riefenstahl played with the idea of slow motion, underwater diving shots, extremely high and low shooting angles, panoramic aerial shots, and
Leni_Riefenstahl
Diving beyond the scope of recreational diving
Technical diving (also referred to as tec diving or tech diving) is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional
Technical_diving
Underwater diving where divers are paid for their work
for dives with a chamber on site: Chamber operator – A person who operates a diving chamber Additional member for surface-supplied mixed gas diving: Gas
Professional_diving
Instrument to calculate decompression status in real time
FSW Heliox/ Trimix Surface Supplied Scientific Diving". In Lang, M.A.; Smith, N.E. (eds.). Proceedings of Advanced Scientific Diving Workshop. Smithsonian
Dive_computer
Articulated pressure-resistant anthropomorphic housing for an underwater diver
An atmospheric diving suit (ADS), atmospheric pressure diving suit or single atmosphere diving suit is a small one-person articulated submersible which
Atmospheric_diving_suit
English Tudor warship (1511–1545)
base and conservation facilities. During the four diving seasons from 1979 to 1982 over 22,000 diving hours were spent on the site, an effort that amounted
Mary_Rose
Diagnosis, treatment and prevention of disorders caused by underwater diving
and mixed gas Surface supplied diving Standard diving (copper helmet) Rebreather diving (semi-closed and closed circuit) Other diving procedures Characteristics
Diving_medicine
Semi-submersible offshore drilling rig
Sea, four divers were in a diving chamber system on the rig's deck that was connected by a trunk (a short passage) to a diving bell. The divers were Edwin
Byford_Dolphin
Ability to see objects underwater
to ambient daylight except near to the surface. Low visibility refers to a diving environment where the diving medium is turbid and objects cannot be
Underwater_vision
Physiological responses to immersion of air-breathing vertebrates
The diving reflex, also known as the diving response and mammalian diving reflex, is a set of physiological responses to immersion that overrides the
Diving_reflex
Underwater diving to a depth beyond the norm
these problems are avoided by the use of surface supplied breathing gas, closed diving bells, and saturation diving, at the cost of logistical complexity
Deep_diving
Garment or device designed to protect a diver from the underwater environment
suit may also incorporate a breathing gas supply (such as for a standard diving dress or atmospheric diving suit), but in most cases the term applies
Diving_suit
Underwater diving without breathing apparatus
terms freediving and skin diving were commonly used to describe underwater diving that was performed without surface-supplied breathing apparatus or scuba
Freediving
Deaths occurring while scuba diving or as a consequence of scuba diving
Scuba diving fatalities are deaths occurring while scuba diving or as a consequence of scuba diving. The risks of dying during recreational, scientific
Scuba_diving_fatalities
Diving mask that covers the mouth as well as the eyes and nose
A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant
Full-face_diving_mask
USMC deep reconnaissance unit
Springs, California. United States Marine Corps Combatant Diver Course – Navy Diving Salvage and Training Center, Naval Support Activity Panama City, Florida
United States Marine Corps Force Reconnaissance
United_States_Marine_Corps_Force_Reconnaissance
Training and operations handbook
post-dive procedures. Chapter 8: Surface Supplied Air Diving Operations: KM-37 NS, Mk 20, portable surface-supplied diving systems, surface-supplied diving
U.S._Navy_Diving_Manual
Underwater diving using self contained breathing gas recycling apparatus
systems for surface-supplied diving. Gas reclaim systems used for deep heliox diving use similar technology to rebreathers, as do saturation diving life-support
Rebreather_diving
Equipment which provides breathing gas to an underwater diver
and efficiency of the working diver. Surface-supplied diving includes diving using an umbilical with gas supply hose, lifeline strength member and communications
Underwater breathing apparatus
Underwater_breathing_apparatus
Pressure reduction and its effects during ascent from depth
atmospheric pressure when free-diving or snorkelling will not usually need to decompress. Divers using an atmospheric diving suit do not need to decompress
Decompression_(diving)
Diving in water-filled caves
Recreational cave-diving is generally considered to be a type of technical diving due to the lack of a free surface during large parts of the dive, and often
Cave_diving
Group of people working together to enhance dive safety and achieve a task
A diving team is a group of people who work together to conduct a diving operation. A characteristic of professional diving is the specification for minimum
Diving_team
Recreational diver training and certification agency
The Professional Association of Diving Instructors (PADI) is a recreational diving membership and diver training organization founded in 1966 by John Cronin
Professional Association of Diving Instructors
Professional_Association_of_Diving_Instructors
British science fiction writer (1917–2008)
writing, Clarke set up several diving-related ventures with his business partner Mike Wilson. In 1956, while scuba diving, Wilson and Clarke uncovered ruined
Arthur_C._Clarke
Directional mass flow of oceanic water
the movement of nutrients and gases, such as carbon dioxide, between the surface and the deep ocean. Ocean currents are classified by temperature as either
Ocean_current
Procedures for safe ascent and descent in underwater diving
minute. Scuba skills – Skills required to scuba-dive safely Surface-supplied diving skills – Underwater diving procedures Decompression practice – Techniques
Ascending and descending (diving)
Ascending_and_descending_(diving)
2006 animal encounter accident
diving Surface-supplied diving Unmanned diving Diving equipment Cleaning and disinfection of personal diving equipment Human factors in diving equipment
Death_of_Steve_Irwin
Submersible that traveled to the Challenger Deep
developer team members hail from Sydney's cave-diving fraternity including Allum himself with many years of cave-diving experience.[citation needed] Working in
Deepsea_Challenger
Self-contained underwater breathing apparatus
also used in professional diving when it provides advantages, usually of mobility and range, over surface-supplied diving systems and is allowed by the
Scuba_set
Standard underwater diving protocols
transport back to storage of the dive spread. Routine Surface-supplied diving procedures: Preparing the surface supplied diving equipment. Dressing in the diver
Diving_procedures
Closed or semi-closed circuit scuba
extenders for surface-supplied diving and as bailout systems for scuba or surface-supplied diving. Gas reclaim systems used for deep heliox diving use similar
Diving_rebreather
Change in sea level due to gravity
axis, at the Earth's surface) is about 1.1×10−7 g, while the solar tidal acceleration (along the Sun–Earth axis, at the Earth's surface) is about 0.52×10−7 g
Tide
Origins and development of diving using breathing gas carried by the diver
tables developed for surface supplied air diving. This was inefficient for multi-level dives, and the custom of multilevel diving using tables was not
History_of_scuba_diving
Diving unit of the Royal Australian Navy
Clearance Diving Branch is the specialist diving unit of the Royal Australian Navy (RAN) whose versatile role covers all spheres of military diving, and includes
Clearance_Diving_Branch_(RAN)
Severely deficient supply of oxygen
push the victim's jaw up. The corpses had no visible injuries, and were supplied to medical schools for money. Compressive asphyxia (also called chest compression)
Asphyxia
Branch of professional diving carried out by police services
and ice diving, firearms training, night diving, operation of a recompression chamber, search management, surface-supplied air diving and diving voice communication
Police_diving
Buoy towed by a scuba diver to indicate position
needed for scuba diving Technical diving – Diving beyond the scope of recreational diving Thomas, Guy (30 May 2017). "Which Delayed Surface Marker Buoy should
Surface_marker_buoy
Emergency gas supply cylinder carried by a diver
underwater diving Surface-supplied diving – Underwater diving breathing gas supplied from the surface Larn, Richard; Whistler, Rex (1993). Commercial Diving Manual
Bailout_bottle
Special forces unit of the British Army
different areas: Boat troop – specialists in maritime skills including diving using rebreathers, using kayaks (canoes) and rigid-hulled inflatable boats
Special_Air_Service
Disorder caused by dissolved gases forming bubbles in tissues
Navy Diving Manual indicates that ascent rates greater than about 20 m/min (66 ft/min) when diving increase the chance of DCS, while recreational dive tables
Decompression_sickness
Substantial weighted near-vertical line with buoy
A diving shot line, shot line, or diving shot, a type of downline or descending line (US Navy), is an item of diving equipment consisting of a ballast
Diving_shot
Topics referred to by the same term
Diving (sport), the sport of performing acrobatics while jumping or falling into water Underwater diving, including: scuba diving freediving surface-supplied
Diver
Tactical scuba diver
call themselves "combat divers" or similar. Tactical diving is a branch of professional diving carried out by armed forces and tactical units. They may
Frogman
Watch designed for underwater diving
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance
Diving_watch
Fatal offshore diving accident in Scotland, 1979
routine dive in the East Shetland Basin of the North Sea, the diving bell of the diving support vessel MS Wildrake became separated from its main lift
Wildrake_diving_accident
Diving to gather natural sponges
50 years of surface supplied diving. French Navy physician Alfred Le Roy de Mericourt reported that in 1867, the suppliers of the diving suits reported
Sponge_diving
Diving incident in the Maldives
The 2026 Dhekunu Kandu cave diving incident was a cave diving incident that occurred on May 14th, 2026 at the Dhekunu Kandu cave, also known as the Devana
2026 Dhekunu Kandu cave diving incident
2026_Dhekunu_Kandu_cave_diving_incident
Topics referred to by the same term
underwater diving, may refer to: In surface supplied diving, surface oriented diving, where the breathing gas is supplied from the surface, and the dive starts
Bounce_diving
Equipment which allows the user to breathe at hypoxic altitudes
1953, pp. 257–262. Drake (1974). NOAA Diving Program (U.S.) (2001). Joiner, James T. (ed.). NOAA Diving Manual, Diving for Science and Technology (4th ed
High-altitude breathing apparatus
High-altitude_breathing_apparatus
Ship used as a floating base for professional diving projects
hazardous for surface supplied diving unless a stage or bell is used to keep the divers' umbilicals clear of the vessel's thrusters A diving support vessel
Diving_support_vessel
Method in underwater archaeology
Archaeological diving is a type of scientific diving used as a method of survey and excavation in underwater archaeology. The first known use of the method
Archaeological_diving
Recreational diving without a dive buddy
diving has always been an option which depends on operational requirements and risk assessment. Surface supplied diving and atmospheric suit diving are
Solo_diving
Irish safety freediver (1977-2017)
Andrukajtis, Tomasz (2017-07-23). "Freediver Stephen Keenan Died While Diving In Dahab - DIVERS24.COM". Retrieved 2023-10-27. Feehan, Conor (2017-07-25)
Stephen_Keenan
Underwater diving at altitudes above 300 m
Altitude diving is ambient pressure diving using scuba or surface supplied diving equipment where the surface is 300 metres (980 ft) or more above sea
Altitude_diving
English broadcaster and natural historian (born 1926)
on-screen presenter due to difficulties in speaking to a camera through diving apparatus, but asked Attenborough to narrate the films. The same team reunited
David_Attenborough
Person who trains and assesses underwater divers
recreational divers. Military diving instructors are generally members of the armed force for which they train personnel. Commercial diving instructors may be required
Diving_instructor
Diver who remains underwater for 24 hours or more
provided him with a diving helmet so he could breathe during the transit to the diving bell. He was then returned to the surface after decompression from
Aquanaut
of diving equipment used by divers other than freedivers, is underwater breathing apparatus, such as scuba equipment, and surface-supplied diving equipment
List of diving equipment manufacturers
List_of_diving_equipment_manufacturers
Methods used by underwater divers to communicate
or with surface members of the dive team. In professional diving, diver communication is usually between a single working diver and the diving supervisor
Diver_communications
Flag signal indicating divers are in the water nearby
require divers to display the flag while diving and to stay within a specified area when they are near the surface. There may also be a larger zone around
Diver_down_flag
Rigid head enclosure for underwater diving
diving. They are worn mainly by professional divers engaged in surface-supplied diving, though some models can be used with scuba equipment. The upper
Diving_helmet
Diving inside a protective cage to observe sharks in the wild
Shark cage diving is underwater diving or snorkeling where the observer remains inside a protective cage designed to prevent sharks from making contact
Shark_cage_diving
Outcrop of rock in the sea formed by the growth and deposit of stony coral skeletons
coral reefs, such as Porites, can indicate changes in sea surface temperature and sea surface salinity conditions during the growth of the coral. Climate
Coral_reef
American engineer, vintner, and former NASA astronaut
Space Center gates, called Tierra Luna Grill, which is Spanish for Lunar Surface Grill. Hernández owns a 20-acre vineyard near Lodi, California, and in
José_M._Hernández
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