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Divers work for scientists interested in studying Antarctic waters in search of data to analyse -- about the health of planet earth.

One danger is the saltwater temperature, which can fall as low as 27 degrees F before it freezes. This means that when fresh water is introduced into the saltwater, columns of fresh water can freeze instantly. This is a danger for divers who are concentrating and focusing on gathering data and are not aware of the freezing column until they are caught in it.

Divers must enter the water through holes cut in the sea ice, and these holes can be awkward to be around, use and can snag diving equipment. Sea ice can be as thick as eight feet, or as thin as a few feet in order to support the top-of-ice activity to support the divers.

Divers can become dis-oriented under the sea ice, so that they are unable to find the re-surface hole.

Usually, divers work with dive tenders. These volunteers man the dive flags that divers look for to find holes in the sea ice, and man the air hoses, if used, so that divers can accomplish their work underwater.

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9y ago

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