- Gas Analysis
- A procedure whereby the fractions of gas in a breathing mixture are determined. Generally it is used to determine the fraction of oxygen to within 1 %, to control the effects of Oxygen toxicity. Most diving operations will analyse for oxygen only. In more complex Trimix's, it is be desirable to analyse for the inert gases as well.
- Gas Laws
- Laws that predict how gases will behave with changes in pressure, temperature and volume.
- Gas Saturation
- Gas saturation occurs when the level of dissolved gas in a particular body tissue has reached its maximum.
- Gauge pressure
- Pressure exclusive of atmospheric pressure, when diving, gauge pressure is due to the water pressure.
- GDAT
- Gorman Dive Adventures and Travel.
- Giant Stride Entry
- The most common method of entering water from a boat transom, pier, etc., where the standing diver takes a large step into the water while securely holding mask, tucking chin and bringing fins quickly together to keep himself at the surface for a controlled descent.
- GoPro
- GoPro cameras. Hero 3 Black, Siver and White. Miniture camera for all sports, above water and under. GoPro is a brand of the privately owned San Mateo, California company Woodman Labs that features "wearable" camera/camcorders such as helmet cameras that are targeted at adventure video/photography.
- GPS
- global positioning system. A worldwide system of navigation based on a ring of stationary satellites. Small, even handheld, GPS devices can be used to accurately determine speed and direction of travel, and pinpoint dive site locations.
- Granny Line
- Also known as a Gerry Line. A line which goes from the stern platform or hang bar to the anchor line.
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There are 11 scuba glossary terms listed. |
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