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Ascent to the surface by a diver in an emergency
An emergency ascent is an ascent to the surface by a diver in an emergency. More specifically, it refers to any of several procedures for reaching the
Emergency_ascent
Topics referred to by the same term
Free ascent may refer to: Emergency ascent from a scuba dive where there is no breathing gas available Ascent of a route in free climbing, as opposed to
Free_ascent
Skills required to scuba-dive safely
the dive team, buoyancy and trim control, mobility in the water, ascent, emergency and rescue procedures, exit from the water, removal of equipment after
Scuba_skills
Techniques and procedures for safe decompression of divers
controlled decompression ascent to an acceptable schedule, or the circumstances do not allow it, or during an emergency ascent, when the diver judges and
Decompression_practice
Australian conservationist (1962–2006)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Steve_Irwin
English broadcaster and natural historian (born 1926)
"sledgehammer" projects. Others followed, including Jacob Bronowski's The Ascent of Man (also commissioned by Attenborough) and Alistair Cooke's America:
David_Attenborough
Procedures for safe ascent and descent in underwater diving
perform an ascent in a controlled manner, breathing as normal. When no redundant air supply is available, the diver can make a controlled emergency swimming
Ascending and descending (diving)
Ascending_and_descending_(diving)
Swimming underwater, breathing gas carried by the diver
managed at depth. Controlled emergency ascents are almost always a consequence of loss of breathing gas, while uncontrolled ascents are usually the result of
Scuba_diving
Severely deficient supply of oxygen
there are symptoms of mechanical asphyxia, it is necessary to call the Emergency Medical Services. In some countries, such as the US, there may also be
Asphyxia
Emergency gas supply cylinder carried by a diver
ascent with any required decompression, in place of a controlled emergency swimming ascent, which will not allow required decompression. A bailout cylinder
Bailout_bottle
Semi-submersible offshore drilling rig
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Byford_Dolphin
2006 animal encounter accident
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Death_of_Steve_Irwin
American engineer, vintner, and former NASA astronaut
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
José_M._Hernández
Special forces unit of the British Army
required in Korea and so it instead volunteered to fight in the Malayan Emergency. Upon arrival in Malaya, it came under the command of Mike "Mad Mike"
Special_Air_Service
British science fiction writer (1917–2008)
several essays and extensive autobiographical material, are collected in Ascent to Orbit: A Scientific Autobiography (1984). Clarke contributed to the popularity
Arthur_C._Clarke
Deaths occurring while scuba diving or as a consequence of scuba diving
entanglement or entrapment, rough water, equipment misuse or problems and emergency ascent. The most common injuries and causes of death were drowning or asphyxia
Scuba_diving_fatalities
Mid-size crossover SUV
The Subaru Ascent is a mid-size crossover SUV produced by Subaru. In some markets, it is sold as the Subaru Evoltis. It is the largest automobile Subaru
Subaru_Ascent
Diving incident in the Maldives
the military divers, Sergeant Major Mohamed Mahudhee, became ill during ascent and subsequently was pronounced dead at ADK Hospital in Malé. An international
2026 Dhekunu Kandu cave diving incident
2026_Dhekunu_Kandu_cave_diving_incident
Equipment used by divers to facilitate decompression
buoyancy emergency ascent can be made using an upline for depth control. This is also known as a tethered ascent, emergency tethered ascent or buoyant
Decompression_equipment
Injury due to pressure difference between gas filled space and adjoining tissue
barotrauma is caused by over-expansion of gas trapped in the intestines during ascent. When diving, the pressure differences which cause the barotrauma are changes
Barotrauma
U.S. Navy's special operations force
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
United_States_Navy_SEALs
2018 international rescue mission in Thailand
regimen for Thailand's Navy SEALs to better prepare them for similar emergencies. Tham Luang Nang Non is a karstic cave complex beneath Doi Nang Non,
Tham_Luang_cave_rescue
British ocean liner (1907–1915)
constant feed of coal whilst the ship was operating, and closing these in emergency conditions could be problematic. The ship had a double bottom with the
RMS_Lusitania
Set of detailed instructions to assist in workplace safety
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Standard_operating_procedure
Organ system for circulating blood in animals
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Circulatory_system
American engineer, astronaut, and naval aviator (born 1964)
School (New Jersey) in 1982. While in high school, Kelly worked as an emergency medical technician in Orange and Jersey City, New Jersey. After graduating
Scott_Kelly_(astronaut)
Pirate Blackbeard's ship
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Queen_Anne's_Revenge
Crewed full ocean depth rated submersible
operated from a dual 24 V battery power supply and emergency supply, which can be jettisoned in an emergency. The main battery stores 65 kW·h. There are 4
DSV_Limiting_Factor
Loss of consciousness caused by cerebral hypoxia towards the end of a breath-hold dive
on any dive profile - at constant depth, on an ascent from depth, or at the surface following ascent from depth - and may be described by a number of
Freediving_blackout
German filmmaker (1902–2003)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Leni_Riefenstahl
French oceanographer and author (1910–1997)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Jacques_Cousteau
U.S. Navy officer and NASA astronaut (born 1965)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Sunita_Williams
Directional mass flow of oceanic water
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Ocean_current
Disorder caused by dissolved gases forming bubbles in tissues
emergency. To prevent the excess formation of bubbles that can lead to decompression sickness, divers limit their ascent rate—the recommended ascent rate
Decompression_sickness
Urgent removal of people from an area of imminent or ongoing threat
An emergency evacuation is an immediate egress or escape of people away from an area that contains an imminent threat, an ongoing threat or a hazard to
Emergency_evacuation
USMC deep reconnaissance unit
the submarine locking -in and -out methods, and underwater "blow-and-go" ascents. The USMC concluded that parachute reconnaissance and pathfinding capabilities
United States Marine Corps Force Reconnaissance
United_States_Marine_Corps_Force_Reconnaissance
American novelist and underwater explorer (1931–2020)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Clive_Cussler
Unplanned drop in the pressure of a sealed system
in ambient pressure due to ascent above sea level Decompression (diving) – Pressure reduction and its effects during ascent from depth Decompression (physics) –
Uncontrolled_decompression
American astronaut, circled the Moon in 2026 (born 1975)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Reid_Wiseman
Small independent scuba cylinder usually carried for emergency gas supply
emergency, such as depletion of the diver's main air supply, it can be used as an alternative air source or bailout bottle to allow a normal ascent in
Pony_bottle
Standard underwater diving protocols
bottom. Emergency swimming ascents – Emergency ascent where the diver actively swims upward at approximately neutral buoyancy. Free ascent – Ascent where
Diving_procedures
English Tudor warship (1511–1545)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Mary_Rose
Death of bone tissue due to interruption of the blood supply
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Avascular_necrosis
Phrases used over a public address system
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies
Hospital_emergency_codes
2025 climbing death on the Grossglockner
during outdoor activities. The expedition began as an attempted single-day ascent on January 18, but the couple had been slowed by issues including problems
Death_of_Kerstin_Gurtner
Canadian astronaut (born 1959)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Chris_Hadfield
US government scientific agency
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
National Oceanic and Atmospheric Administration
National_Oceanic_and_Atmospheric_Administration
Irish safety freediver (1977-2017)
Independent, "Keenan suffered an in-water blackout in the last 10 meters of the ascent. He was alive when he was recovered from the water but died a short time
Stephen_Keenan
Underwater diving procedures
these skills, which may be categorised as standard operating procedures, emergency procedures and rescue procedures, there are the actual working skills
Surface-supplied diving skills
Surface-supplied_diving_skills
Ballast carried to counteract buoyancy
the possibility of an uncontrollable ascent to the surface. This risk can only be justified when the emergency is life-threatening or the risk of decompression
Diving_weighting_system
Technique for equalising pressure in the middle ears
the mandible to be pinched off. People often recommend chewing gum during ascent/descent in aircraft because chewing gum increases the rate of salivation
Valsalva_maneuver
Chamber for transporting divers vertically through the water
comfort during ascent, as in-water decompression may be long. Other equipment that is carried on the bell includes cylinders with the emergency gas supply
Diving_bell
Medical condition of lack of oxygen in the tissues
from a rebreather, life-support system, or anesthetic machine. Hypoxia of ascent (latent hypoxia) in freediving and rebreather diving. Airway obstruction
Hypoxia_(medicine)
Australian technical diver (1954–2005)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Dave_Shaw
British cave diver who specialises in rescues
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Rick_Stanton
Radio-frequency beacon used to locate airplanes, vessels, and persons in distress
An emergency locator beacon is a radio beacon, a portable battery powered radio transmitter, used to locate airplanes, vessels, and persons in distress
Emergency_locator_beacon
Retired US Navy officer and professor of oceanography (born 1942)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Robert_Ballard
Human body core temperature below 35 °C (95 °F)
American Journal of Emergency Medicine. 18 (6): 703–7. doi:10.1053/ajem.2000.16313. PMID 11043627. Marx J (2010). Rosen's emergency medicine: concepts
Hypothermia
Australian anesthesiologist and cave diver
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Richard_Harris_(anaesthetist)
Swedish and American marine biologist and NASA astronaut
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Jessica_Meir
Special forces unit of the Royal Navy
than it did. The SBS were also allegedly operating in Cyprus during the emergency and on alert during the Suez Crisis of 1956 and coup against King Idris
Special_Boat_Service
Submersible that traveled to the Challenger Deep
dramatically more scientific equipment than Trieste, and is capable of more rapid ascent and descent. Beacons and antennae, top Battery array One of the thrusters
Deepsea_Challenger
Female divers of Jeju, South Korea
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Haenyeo
Tactical scuba diver
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Frogman
Polish special forces unit
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
GROM_Military_Unit
British volunteer cave rescue diver
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
John_Volanthen
Anglo-Irish scientist (1627–1691)
Online. 2014. Retrieved 26 September 2021. Silver, Brian L. (2000). The ascent of science. New York: Oxford University Press. p. 114. ISBN 978-0-19-513427-8
Robert_Boyle
Situation that endangers the life or health of a diver
A diving emergency or underwater diving emergency is an emergency that involves an underwater diver. The nature of an emergency requires action to be taken
Underwater_diving_emergency
Underwater assault rifle
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
QBS-06
Vascular blockage by air bubbles
as a result of gross trauma to the lining of the lung following a rapid ascent while holding the breath; the air held within the lung expands to the point
Air_embolism
British explorer and TV presenter
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Paul_Rose_(TV_presenter)
Water current moving away from shore
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Rip_current
Outcrop of rock in the sea formed by the growth and deposit of stony coral skeletons
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Coral_reef
Special operations unit of the Israeli Navy
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Shayetet_13
Canadian astronaut, circled the Moon in 2026 (born 1976)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Jeremy_Hansen
Equipment used to facilitate underwater diving
alternative ascent system. DSMB - (Delayed, or deployable surface marker buoy), or decompression buoy which is inflated at the start of, or during the ascent, to
Diving_equipment
Indian Navy special operations force
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
MARCOS
Cave diver from Florida
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Edd_Sorenson
Diving mode and decompression technique
during or after the ascent phase of that excursion. An upward excursion is a decompression from saturation, analogous to an ascent to altitude from sea
Saturation_diving
Stretch garment for protection from abrasion, UV and stings
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Rash_guard
Distinct layer of temperature change in a body of water
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Thermocline
Austrian freediver and world record holder
few days earlier. He used his arms only in the last 40 m (131 ft) of this ascent, with a total dive time of 3:58. In December of 2009 at the Dean's Blue
Herbert_Nitsch
Italian freediver (born 1992)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Alessia_Zecchini
Physiological responses to immersion of air-breathing vertebrates
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Diving_reflex
Equipment designed to help protect an individual from hazards
for Occupational Safety and Health. CDC - Eye Safety - Eye Safety for Emergency Response and Disaster Recovery Archived 2017-09-02 at the Wayback Machine
Personal_protective_equipment
Use of high-pressure water jet for cleaning hard surfaces
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Pressure_washing
Italian free diver
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Enzo_Maiorca
Chinese military unit
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
7th Marine Brigade (PLA Navy Marine Corps)
7th_Marine_Brigade_(PLA_Navy_Marine_Corps)
Cloudiness of a fluid
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Turbidity
Emergency first response medical treatment
the first and immediate assistance given to any person with a medical emergency, with care provided to preserve life, prevent the condition from worsening
First_aid
Swimming while inhaling through a snorkel
shortages, full-face snorkel masks were adapted to create oxygen dispensing emergency respiratory masks by deploying 3D printing and carrying out minimal modifications
Snorkeling
Non-profit organization for promoting standards and knowledge for commercial diving
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Association of Diving Contractors International
Association_of_Diving_Contractors_International
Japanese pearl divers
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Ama_(diving)
1975–1977 state of emergency in India under Prime Minister Indira Gandhi
The Emergency in India was a 21 month period from 1975 to 1977 when prime minister Indira Gandhi declared a state of emergency across India by citing internal
The_Emergency_(India)
System used in industry to eliminate or minimize exposure to hazards
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Hierarchy_of_hazard_controls
Scientific study of the ocean
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Oceanography
Toxic effects of breathing oxygen at high partial pressures
mouth—as the danger of drowning is then greater than that of AGE—but the ascent should be delayed until the end of the clonic phase otherwise. Rescuers
Oxygen_toxicity
Emergency supply of breathing gas for an underwater diver
self-contained ascent bottle or emergency gas supply is a small diving cylinder meant to be used as an alternate air source to allow a controlled ascent with any
Alternative_air_source
Soviet underwater assault firearm firing unrifled steel flechettes
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
APS_underwater_rifle
British Army Air Corps officer and astronaut (born 1972)
Non-freezing cold injury Diving procedures Ascending and descending Emergency ascent Boat diving Canoe and kayak diving Buddy diving buddy check Decompression
Tim_Peake
travel, tourism, insurance
EMERGENCY ASCENT
EMERGENCY ASCENT
Biblical
ascent of scorpions
Girl/Female
Biblical
Ascent of scorpions.
Boy/Male
Muslim/Islamic
Ascent height
Girl/Female
Arabic
Spell; Superior; Ascent; Charm
Boy/Male
Arabic, Muslim
The Place of Ascent; The Above
Boy/Male
Hindu, Indian, Marathi
A Jain Ascent
Boy/Male
Muslim
Ladder. Ascent.
Girl/Female
Hindu, Indian, Marathi, Sanskrit
Rise; Ascent; Birth; Fame
Boy/Male
Tamil
Phalguna | பாலà¯à®•à¯à®¨à¯€
Born when Falguni Nakshatra was in ascent
Phalguna | பாலà¯à®•à¯à®¨à¯€
Boy/Male
American, Basque, British, Chinese, Christian, Danish, English, French, German, Greek, Hawaiian, Hebrew, Swedish
Uplifted; Elevation; The Lord will Help; The Lord is My God; Ascend; My God; Ascent; Defender of Mankind; Offering
Surname or Lastname
English and Scottish
English and Scottish : from Maurice, an Old French personal name introduced to Britain by the Normans, Latin Mauritius, a derivative of Maurus (see Moore). This was the name of several early Christian saints. In some cases it may be a nickname of the same derivation for someone with a swarthy complexion.Irish : Anglicized form of Gaelic Ó Muirghis, a variant of Ó Muirgheasa (see Morrissey).Welsh : Anglicized form of the Welsh personal name Meurig (from Latin Mauritius), which was gradually superseded in Wales by Morus, Morys, a derivative of the Anglo-Norman French form of the name (see 1).German : variant of Moritz.Americanized form of any of various like-sounding Jewish surnames (see Morse).Morris was the name of an extensive and powerful family in colonial North America, whose members played a leading part in the emergence of the nation. They were descended from Richard Morris (d. 1672), who fought in Oliver Cromwell’s army and then became a merchant in Barbados. His son Lewis (1671–1746) established the “manor†of Morrisania in NY. His grandson, Lewis (1726–98), third owner of that manor, was a signer of the Declaration of Independence. Two other grandsons, Richard and Gouverneur, were also key figures in the Revolution. Their half-brother Staats Morris (1728–1800) was a general in the British army who was appointed governor of Quebec.
Surname or Lastname
English
English : habitational name from a place in Shropshire named Chetwynd, from the Old English personal name Ceatta + Old English (ge)wind ‘winding ascent’.
Boy/Male
Muslim
Ladder. Ascent.
Boy/Male
Arabic
Variant of Mi'raj; Ladder; Ascent
Boy/Male
Hindu
Born when Falguni Nakshatra was in ascent
Boy/Male
Arabic, Muslim, Sindhi
Place of Ascent; Ascension to Heaven
Boy/Male
Afghan, Arabic, Gujarati, Hindu, Indian, Iranian, Kannada, Marathi, Muslim, Parsi, Sindhi
Equitable; Above; Upon; Elevation; On the Top; Fair; Just; Ascent; Height; Divine
Surname or Lastname
English
English : regional name from the district around Middlesbrough named Cleveland ‘the land of the cliffs’, from the genitive plural (clifa) of Old English clif ‘bank’, ‘slope’ + land ‘land’.Americanized spelling of Norwegian Kleiveland or Kleveland, habitational names from any of five farmsteads in Agder and Vestlandet named with Old Norse kleif ‘rocky ascent’ or klefi ‘closet’ (an allusion to a hollow land formation) + land ‘land’.Grover Cleveland (1837–1908), 22nd and 24th president of the U.S., was the fifth child of a country Presbyterian clergyman. His father, Richard Falley Cleveland, a graduate of Yale College and of the theological seminary at Princeton, was descended from a certain Moses Cleaveland who arrived in MA in 1635.
EMERGENCY ASCENT
EMERGENCY ASCENT
EMERGENCY ASCENT
EMERGENCY ASCENT
EMERGENCY ASCENT
EMERGENCY ASCENT
EMERGENCY ASCENT
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