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121 lines
3.8 KiB
Text
121 lines
3.8 KiB
Text
Do not translate this file.
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This just tries to collect some of the terms you will run into
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when translating Subsurface
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SAC Surface equivalent air consumption
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The air consumed during a dive at different
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depth is adjusted for depth/pressure to give
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an easy to understand air consumption number
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OTU Oxygen Toxicity Unit - a measurement how O₂
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negatively impacts the lung tissue. This number
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has no unit, the values are rather abstract
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CNS Central Nervous System Oxygen Toxicity - a
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measurement how O₂ negatively impacts the
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central nervous system - this is a percentage
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or a number <= 1
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maxCNS the highest CNS value during a dive
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PO2, PN2, PHe These are all partial pressures of the three
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PO₂, PN₂ gases Oxygen (O2 or O₂), Nitrogen (N2 or N₂)
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and Helium (He).
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O₂%, He% The fraction of Oxygen and Helium in a gas.
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The partial pressure is therefore the pressure
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of the gas times the fraction of the specific
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component. E.g. a gas with O₂% = 30 (also called
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30% Nitrox or EAN30) at 30m depth (where the
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pressure is 4atm) therefore has a PO₂ of
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4 * 0.30 = 1.2
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CSV Comma separated values - a common file format
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TSV Tab separated values - a common file format
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Stopdepth The depth at which the diver needs to wait for
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some time in order to "off-gas". Also deco stop.
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WorkPress Working Pressure of a tank - the pressure it should
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be filled to
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StartPress Starting Pressure - at the beginning of a dive
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EndPress Ending Pressure - at the end of a dive
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Switch at the depth at which the diver wants to switch to
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a certain gas
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Device ID Unique ID for a specific dive computer
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trip dives are grouped into "trips" based on their
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individual start time. As soon as there are more than
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48h between dives the automated algorithm will start
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a new trip
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UDDF standardized file format
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GFHigh, GFLow Gradient Factors of the Buehlman algorithm. These
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impact the way the deco obligations are calculated
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in Subsurface. Typically these are between 20 and 100.
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Lower is more conservative (i.e., more deco). It's
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possible to use values below 20 and above 100 in
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certain circumstances, but 70/30 is much more common.
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CC Closed circuit - short for "repreather diving"
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OC Open circuit - traditional scuba
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CC Set Point Rebreathers often are run with a fixed PO₂ - the "set point"
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Bailing out to OC
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in a rebreather dive the dive switches to their emergency
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OC equipment
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Auto Group automatically arrange dives into trips
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Ceiling when the diver is "in deco", i.e., when the diver cannot
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directly ascend to the surface but has to put in "stops"
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to give their body time to "off gas" (reduce the amount of N₂
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and potentially He in the body), there is a minimum depth
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they should not climb above - that's the ceiling. Often a
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diver will do a deco stop well below the ceiling
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Viz short for visibility
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belt, ankle weight system types - a backplate is used mostly by tech
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backplate, divers to mount the tanks on (recreational divers have a BC,
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integrated, tech divers usually a backplate and a wing)
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clip-on
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rbt remaining bottom time
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rgt remainint gas time
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workload is this a strenous dive?
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deepstop stop well below the ceiling
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safety stop stop at the end of a recreational dive, typically
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3 minutes at 5 meters
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below floor event showing dive is below the depth where the dive
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is acruing additional deco time
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OLF Oxygen Limit Fraction; Suunto specific term for CNS
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rgbm reduced gradient bubble method - alternative deco
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algorithm
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non stop time amount of time the diver can stay at the current depth
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NDL without going into deco
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EAD equivalent air depth
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END effective equivalent Nitrogen depth
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EADD equivalent air density depth
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TTS time to surface (including deco stop and reasonable
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ascent speed)
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