SUUNTO SPYDER User Manual
Page 88
86
10. GLOSSARY
Altitude dive
A dive made at an elevation greater than 700 m [2300 ft] above
sea-level.
Ascent rate
The speed at which the diver ascends toward the surface.
ASC RATE
Abbreviation for ascent rate.
Ascent time
The minimum amount of time needed to reach the surface on a
decompression dive.
ASC TIME
Abbreviation for ascent time.
Ceiling
On a decompression dive the shallowest depth to which a diver
may ascend based on computer nitrogen load.
Ceiling Zone
On a decompression dive the zone between the ceiling and the
ceiling plus 1.8 m [6 ft]. This depth range is displayed with the
two arrows pointing toward each other (the hourglass icon).
Compartment
See Tissue group.
DCS
Abbreviation for decompression sickness.
Decompression sickness
Any of a variety of maladies resulting either primarily or sec-
ondary from the formation of nitrogen bubbles in tissues or body
fluids, as a result of inadequately controlled decompression.
Commonly called bends or DCS.