What is the norm of atmospheric pressure in Moscow? What atmospheric pressure is normal?

About what is atmospheric pressure, wethey tell in school at the lessons of natural history and geography. We get acquainted with this information and safely throw it out of our heads, rightly believing that we will never be able to use it.

But after years of stress and environmental conditionsenvironment will have a sufficient impact on us. And the concept of "geo-dependence" will no longer seem nonsense, because the pressure jumps and the headache will start to poison life. At this point, we must remember what the norm of atmospheric pressure in Moscow, for example, is to adapt to new conditions. And to live further.

School Basics

The atmosphere that surrounds our planet, toUnfortunately, in the literal sense of the word it presses on all living and nonliving things. To determine this phenomenon, there is a term - atmospheric pressure. This is the force of the impact of the air column on the area. In the SI system, we are talking about kilograms per 1 square centimeter. Normal atmospheric pressure (for Moscow has long been known for optimal performance) affects the human body with the same force as a weight of 1,033 kg. But most of us do not notice this. There are enough gases dissolved in the body fluids to neutralize all unpleasant sensations.

Norms of atmospheric pressure in different regionsare different. But 760 mm Hg is considered ideal. Art. Experiments with mercury were the most revealing at a time when scientists argued that air has weight. Mercury barometers are the most common instruments for determining pressure. It should also be remembered that the ideal conditions for which the above-mentioned 760 mm Hg are relevant. The temperature is 0 ° C and the 45th parallel.

It is customary in the international system of units to determine the pressure in the Pascals. But for us, the use of fluctuations in the mercury column is more familiar and understandable.

Features of the relief

Certainly, the value of atmospheric pressuremany factors influence. The most significant are the relief and proximity to the magnetic poles of the planet. The norm of atmospheric pressure in Moscow is fundamentally different from that of St. Petersburg; and for the inhabitants of some remote aul in the mountains this figure may seem generally abnormal. Already at a level of 1 km above sea level, the pressure is lowered. It corresponds to 734 mm Hg. Art.

As already noted, near the Earth's polesthe amplitude of the change in pressure is much higher than in the equatorial zone. Even during the day, the atmospheric pressure changes somewhat. Slightly, however, only 1-2 mm. This is due to the difference in daytime and nighttime temperatures. The night is usually cooler, which means the pressure is higher.

Pressure and Man

For a person, in essence, it does not matter,What is the atmospheric pressure: normal, low and high. These are very conditional definitions. People tend to get used to everything and adapt. Much more important is the dynamics and magnitude of changes in atmospheric pressure. On the territory of the CIS countries, in particular in Russia, there are quite a few areas of low pressure. Often locals do not know about this.

The norm of atmospheric pressure in Moscow, for example,can be considered as a non-constant value. After all, each skyscraper is a kind of mountain, and the higher and faster it is to climb (to go down), the more noticeable will be the difference. Some people may well lose consciousness by rolling on a high-speed elevator.

Adaptation

Doctors almost unanimously agree,that the question "what atmospheric pressure is considered normal" (Moscow or any locality on the planet is not important) is incorrect in itself. Our body perfectly adapts to life above or below sea level. And if the pressure does not have a harmful effect on a person, it can be considered normal for a given area. Doctors say that the norm of atmospheric pressure in Moscow and other large cities is in the range from 750 to 765 mm Hg. post.

Absolutely different is the pressure drop. If within a few hours it rises (falls) by 5-6 mm, people begin to experience discomfort and pain. This is especially dangerous for the heart. His heartbeat increases, and a change in the frequency of inspiration leads to a change in the rhythm of oxygen supply to the body. The most common ailments in this situation are weakness, nausea, headache, etc.

Meteorological dependence

Normal atmospheric pressure for Moscow canseem a nightmare to a visitor from the North or from the Urals. After all, each region has its own norm and, accordingly, its understanding of the stable state of the organism. And since in life we ​​do not concentrate on exact indicators of pressure, weather forecasters always focus on what pressure this is for the given region - increased or decreased.

After all, not everyone can boast,that does not notice the corresponding changes. Those who can not call themselves lucky in this matter, should systematize their feelings during pressure surges and find acceptable measures of struggle. Often there are enough cups of strong coffee or tea, but sometimes more help is needed in the form of drugs.

Pressure in the city

The most meteodependent are the residentsmegacities. It is here that a person experiences more stress, lives a high pace and experiences a deterioration in the environment. Therefore, to know which norm of atmospheric pressure for Moscow is vital.

The capital of the Russian Federation is located on the Srednerusskayaelevations, which means that here a priori a zone of low pressure. Why? It's very simple: the higher the sea level, the lower the atmospheric pressure. For example, on the bank of the Moskva River this figure will be 168 m. And the maximum value in the city is fixed in Teply Stan - 255 m above sea level.

It can be assumed that Muscovites expectanomalously low atmospheric pressure is much less frequent than that of residents of other regions, which, of course, can not fail to please them. And yet, what atmospheric pressure is the norm in Moscow? Meteorologists say that it usually does not exceed 748 mm Hg. post. This means little, since we already know that even a rapid rise in the elevator can have a significant impact on the heart of a person.

On the other hand, Muscovites do not feel uncomfortable if the pressure fluctuates between 745 and 755 mm Hg. Art.

Danger

But from the medical point of view, not everything is sooptimistic for the inhabitants of the metropolis. A lot of specialists quite reasonably believe that, working on the upper floors of business centers, people are putting themselves at risk. In addition to living in a low pressure zone, they spend almost a third of the day in places with rarefied air.

If to this fact to add still disturbances of systemventilation of the building and the constant work of air conditioners, it becomes obvious that the employees of such offices are the most inefficient, sleepy and sick.

Outcomes

Actually, it is worth remembering a few moments. First, there is no single ideal value for normal atmospheric pressure. There are regional norms that can differ significantly in absolute terms. Secondly, the characteristics of the human body allow you to easily experience pressure differences in the event that this happens quite slowly. Thirdly, the healthier we live and the more often we manage to observe the regime of the day (lifting at the same time, prolonged night sleep, observance of an elementary diet, etc.), the less we are subject to meteorological dependence. So, they are more energetic and cheerful.