bottom time

bottom time

[′bäd·əm ‚tīm]
(oceanography)
In an operation involving diving by personnel, the total time of a dive measured from the moment the diver passes below the water surface until the beginning of the ascent.
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There, they would use a surface-supplied diving system with diving helmets to optimize bottom time at depth.
That way you can spend more of your bottom time where your chances are greatest.
"Acquisition time had to be less than twenty minutes, which is the bottom time for the divers.
When you're at the bottom time is never on your side, but would Town making a management change - as some fans want - really help?
"We will have more bottom time than any previous human visitors to the site, because we dive with mixed gas rebreathers,'' the expedition's website said.
as bottom time? A gentle surge toward the wreck, lifts, pauses,
To avoid soggy bottom time, turn your oven down a tad and bake for a long time – keep going all the way until the very edges of your fruit is erring on the side of too dark.
Typical bottom time is estimated to be half and hour.
A closed-circuit rebreather weighs just eight kg, including the carbon dioxide scrubber, whereas the normal open circuit scuba weighs about 15kg or more to get the same bottom time. "The closed-circuit rebreather is so safe and easy that even children can use it," explained Zaki, who describes himself as "the first specialised instructor for MK6 in the region".
In over 13 h of continual bottom time, no fish were encountered (11).
Hebburn is in the bottom time villages for life expectancy.
Navy created the dive tables more than 30 years ago, and they provide information to the diver on nitrogen gas absorption based on depth and bottom time (time spent underwater not counting the ascent).