Altitude diving

Altitude diving is a type of scuba diving that is conducted at altitudes above 300 meters (1,000 feet) above sea level. It requires special procedures and equipment due to the different physical conditions at these heights.

Overview

Altitude diving is different from sea level diving due to the reduced atmospheric pressure at altitude. This affects the decompression sickness risk, which is higher in altitude diving. The reduced pressure affects the amount of gas dissolved in a diver's body, which can lead to decompression sickness if not managed correctly.

Altitude Diving Procedures

The procedures for altitude diving are different from those for sea level diving. Divers must use special dive tables or dive computers that are calibrated for the altitude. These tables take into account the reduced atmospheric pressure and adjust the no-decompression limits and surface intervals accordingly.

Equipment

The equipment used in altitude diving is similar to that used in sea level diving, with a few exceptions. Divers may need to use a larger cylinder to compensate for the reduced atmospheric pressure. They may also need to use a dry suit if the water is cold, as it often is at high altitudes.

Training

Training for altitude diving is available from many diving certification organizations. The training typically includes theory lessons on the physical effects of altitude on the body and the changes to diving procedures, as well as practical training dives at altitude.

Risks and Safety

The main risk in altitude diving is decompression sickness, which can be mitigated by using the correct dive tables or dive computer and by following safe diving practices. Other risks include hypothermia due to the cold water, and altitude sickness due to the reduced oxygen levels at high altitudes.

See Also

• Scuba diving
• Decompression sickness
• Diving cylinder
• Diving certification

Altitude diving Resources
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