Survival in frost and wind. OBZhD

BASICS OF SAFE LIFE
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Survival in frost and wind. Basics of safe life

Fundamentals of Safe Life Activities (OBZhD)

Frost and wind

"You can't get used to the cold," - with these words of R. Amundsen everyone agrees who, by the will of fate or of their own free will, found themselves in conditions of low temperatures. You can't get used to the wind either. But the effect of frost and wind on a person is different.

Light and medium frost in calm weather is even pleasant: it invigorates, decorates the trees with frost, creates a landscape that pleases the soul. Communicating with nature at such a time is a source of good mood. Severe and prolonged frosts can become a cruel test, the cause of colds, frostbite, and death.

The wind is dangerous for its cooling effect and mechanical impact. A strong gusty wind requires special precautions and insurance when driving on rocky and snow-covered ridges, on ice-covered and ice-covered steep slopes, on which it can lead to loss of balance and falling. As a result of prolonged exposure to the wind, hypothermia of the body is possible. A prolonged strong wind causes excitation, irritability, that is, it has a negative effect on the nervous system.

A particular danger to people arises on frosty and windy days. The wind significantly intensifies the effect of frost on the human body. The degree of impact depends on the strength of the wind and is expressed by the appropriate equivalent. So, if during calm the air temperature was equal to -10 ° C, then at a wind speed of 10 m / s, the cold index will already correspond to a temperature of -30,5 ° C, and at a wind speed of 17-18 m / s - 40 ° C frost .

Cold snap

A cold snap is dangerous if it is necessary to continue moving in damp clothes and shoes, which in the cold quickly turn into an ice shell and pads that do not retain heat at all and impede movement. Calluses on the feet and cold fatigue are common in such conditions. In a very difficult position are those who are caught by a cold snap while overcoming any area that limits the possibility of fast movement.

At the first opportunity, you should go down into the forest, make a big fire, warm yourself and dry your wet clothes. Quickly setting up a tent or organizing a temporary shelter, as well as warming up by changing into dry clothes, can save you from trouble with dire consequences.

Authors: Aizman R.I., Krivoshchekov S.G.

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