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

About what is atmospheric pressure, we are told 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 conditions of the environment will have a sufficient impact on us. And the concept of "geo-dependence" will no longer seem nonsense, because pressure jumps and a 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 live on.

School Basics

The atmosphere, which is surrounded by our planet, unfortunately, in the literal sense of the word presses on all living and nonliving. 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. In the body fluids, enough gases are dissolved to neutralize all unpleasant sensations.

Norms of atmospheric pressure in different regions are 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 it is more customary and more understandable to use the fluctuations of the mercury column.

Features of the relief

Of course, the value of atmospheric pressure affects many factors. 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; But 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, in the region of the Earth's poles, the 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 that the pressure is higher.

Pressure and Man

For a person, in essence, it does not matter what kind of 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 atmospheric pressure norm in Moscow, for example, may well be regarded as a variable quantity. After all, each skyscraper is a kind of mountain, and the higher and faster it is to go up (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 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. Pillar.

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 may seem like 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 precise indicators of pressure, weather forecasters always focus on what pressure this is for a given region - high or low.

After all, not everyone can boast that he 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 serious help is needed in the form of medicines.

Pressure in a megacity

The most meteodependent are the inhabitants of megacities. 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 Central Russian Upland, which means that 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 is quite possible to assume that Muscovites expect anomalously low atmospheric pressure much less often than residents of other regions, which, of course, can not but rejoice. And yet, what atmospheric pressure is the norm in Moscow? Meteorologists say that it usually does not exceed 748 mm Hg. Pillar. This means little, because 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 so optimistic for the inhabitants of the metropolis. A lot of experts quite reasonably believe that, working on the upper floors of business centers, people put themselves at risk. After all, 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 system of ventilation of a building and a constant work of conditioners it becomes obvious, that employees of such offices appear the most inefficient, sleepy and sick.

Results

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 vary significantly in absolute terms. Secondly, the characteristics of the human body allow you to easily experience pressure changes in the event that it happens quite slowly. Thirdly, the healthier we live and the more often we manage to observe the regime of the day (rise at the same time, prolonged night sleep, adherence to an elementary diet, etc.), the less we are subject to meteorological dependence. So, they are more energetic and cheerful.