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Ice Diving Options
Daemon
Posted: Wednesday, August 30, 2017 12:00:00 AM
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Ice Diving

Ice diving is a type of penetration diving that takes place under ice. Because it is a particularly dangerous form of diving, divers need to wear exposure suits, hoods, and gloves to protect themselves from frigid waters; use a harness and rope to tether themselves to the surface in case they lose consciousness and must be hauled out; and train in correctly impacting the underside of surface ice in case of rapid ascent. Why should no more than two ice divers dive from the same hole at once? More...
KSPavan
Posted: Wednesday, August 30, 2017 2:40:26 AM

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Article of the Day
Ice Diving
Ice diving is a type of penetration diving that takes place under ice. Because it is a particularly dangerous form of diving, divers need to wear exposure suits, hoods, and gloves to protect themselves from frigid waters; use a harness and rope to tether themselves to the surface in case they lose consciousness and must be hauled out; and train in correctly impacting the underside of surface ice in case of rapid ascent.
KSPavan
Posted: Wednesday, August 30, 2017 2:40:28 AM

Rank: Advanced Member

Joined: 1/28/2015
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Location: Kolkata, Bengal, India
Article of the Day
Ice Diving
Ice diving is a type of penetration diving that takes place under ice. Because it is a particularly dangerous form of diving, divers need to wear exposure suits, hoods, and gloves to protect themselves from frigid waters; use a harness and rope to tether themselves to the surface in case they lose consciousness and must be hauled out; and train in correctly impacting the underside of surface ice in case of rapid ascent.
ChristopherJohnson
Posted: Wednesday, August 30, 2017 8:05:55 AM

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Feels pretty dangerous indeed.
raghd muhi al-deen
Posted: Wednesday, August 30, 2017 9:34:58 AM

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ice diving
Ice diving
Plongée sous glace VJ.JPG
Ice Diving - View from the top
Under the ice - view from below
Monitoring an ice diver conducting studies below the ice.
Cutting a hole in the ice to check the water conditions
Checking water conditions through a small hole in the ice
Cutting the ice hole with chainsaws
Hole prepared for diving - the ice block has been pushed under the side of the hole

Ice diving is a type of penetration diving where the dive takes place under ice.[1][2] Because diving under ice places the diver in an overhead environment typically with only a single entry/exit point, it is considered an advanced type of diving requiring special training (although whether it constitutes technical diving is part of a wider debate within the diving community). Ice divers are generally tethered for safety. This means that the diver wears a special harness under the scuba unit. A line is secured to this harness, and the other end of the line is secured above the surface by one of a number of methods.

The diver also can use a weight harness, integrated weight bcd, or a weight belt with two buckles on it so the weights can not be accidentally released which would cause a run-away ascent into the ice sheet.

Ice diving is a team diving activity because the divers line requires a line tender. This person is responsible for paying out and taking in line so that the diver does not get tangled. Communication to the diver, or to the surface, is accomplished by pulling on the line. Each series of tugs means a different thing. There is a diver suited up and ready to enter the water at a moment's notice. This diver is a safety diver, and has his own tender. His purpose is to assist the primary diver in the event of a problem.

Divers who do not use a tether require extra training and full redundant scuba systems.[citation needed]

Polar diving experience has shown that buoyancy control is the critical skill affecting safety.[2]
Equipment

Since diving under the ice takes place in cold climates, there is typically a large amount of equipment required. Besides each person's clothing and exposure-protection requirements, including spare mitts and socks, there is basic scuba gear, back-up scuba gear, tools to cut a hole in the ice, snow removal tools, safety gear, some type of shelter, lines, and refreshments[citation needed] required.
Exposure suits

Because of the water temperature (between 4°C and 0°C in fresh water, approximately -1.9°C for normal salinity sea water), exposure suits are mandatory.[3]

Pre- and post-dive thermal protection is critical for safety and diver function.[2]
Hand thermal protection protection is important to retain functionality and prevent cold injury.[2]
The diver should be kept warm throughout the dive, but active rewarming by external heating and heavy exercise should be avoided directly after the dive, as the effect of cold on risk of decompression sickness is not fully understood.[2]


with my pleasure
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