What does atmospheric pressure give? Normal atmospheric pressure for humans in pascals. Mercury column pressure. Atmospheric pressure standard
Caused by the weight of air. 1 m³ of air weighs 1.033 kg. For every meter of the earth's surface there is an air pressure of 10033 kg. This refers to a column of air from sea level to the upper atmosphere. If we compare it with a column of water, the diameter of the latter would have a height of only 10 meters. That is, atmospheric pressure is created by its own air mass. The amount of atmospheric pressure per unit area corresponds to the mass of the air column located above it. As a result of an increase in air in this column, pressure increases, and as air decreases, a decrease occurs. Normal atmospheric pressure is considered to be air pressure at t 0°C at sea level at a latitude of 45°. In this case, the atmosphere presses with a force of 1.033 kg for every 1 cm² of earth's area. The mass of this air is balanced by a column of mercury 760 mm high. Atmospheric pressure is measured using this relationship. It is measured in millimeters of mercury or millibars (mb), as well as in hectopascals. 1mb = 0.75 mm Hg, 1 hPa = 1 mm.
Measuring atmospheric pressure.
measured using barometers. They come in two types.
1. A mercury barometer is a glass tube, which is sealed at the top, and the open end is immersed in a metal bowl with mercury. A scale indicating the change in pressure is attached next to the tube. The mercury is acted upon by air pressure, which balances the column of mercury in the glass tube with its weight. The height of the mercury column changes with pressure changes.
2. A metal barometer or aneroid is a corrugated metal box that is hermetically sealed. Inside this box there is rarefied air. The change in pressure causes the walls of the box to vibrate, pushing in or out. These vibrations by a system of levers cause the arrow to move along a graduated scale.
Recording barometers or barographs are designed to record changes atmospheric pressure. The pen picks up the vibration of the walls of the aneroid box and draws a line on the tape of the drum, which rotates around its axis.
What is atmospheric pressure?
Atmospheric pressure on the globe varies widely. Its minimum value - 641.3 mm Hg or 854 mb was recorded over the Pacific Ocean in Hurricane Nancy, and the maximum - 815.85 mm Hg. or 1087 MB in Turukhansk in winter.
Air pressure on the earth's surface changes with altitude. Average atmospheric pressure value above sea level - 1013 mb or 760 mm Hg. The higher the altitude, the lower the atmospheric pressure, as the air becomes more and more rarefied. In the lower layer of the troposphere to a height of 10 m it decreases by 1 mmHg. for every 10 m or 1 mb for every 8 meters. At an altitude of 5 km it is 2 times less, at 15 km - 8 times, 20 km - 18 times.
Due to air movement, temperature changes, seasonal changes Atmosphere pressure constantly changing. Twice a day, in the morning and in the evening, it increases and decreases the same number of times, after midnight and after noon. During the year, due to the cold and compacted air, atmospheric pressure is at its maximum in winter and at its minimum in summer.
Constantly changing and distributed across the earth's surface zonally. This occurs due to uneven heating of the earth's surface by the Sun. The change in pressure is affected by the movement of air. Where there is more air, the pressure is high, and where the air leaves - low. The air, having warmed up from the surface, rises and the pressure on the surface decreases. At altitude, the air begins to cool, becomes denser and sinks to nearby cold areas. Atmospheric pressure increases there. Consequently, the change in pressure is caused by the movement of air as a result of its heating and cooling from the earth's surface.
Atmospheric pressure in the equatorial zone constantly reduced, and in tropical latitudes - increased. This occurs due to constantly high air temperatures at the equator. The heated air rises and moves towards the tropics. In the Arctic and Antarctic, the surface of the earth is always cold and the atmospheric pressure is high. It is caused by air that comes from temperate latitudes. In turn, in temperate latitudes, due to the outflow of air, a zone of low pressure is formed. Thus, there are two belts on Earth atmospheric pressure- low and high. Decreased at the equator and in two temperate latitudes. Raised on two tropical and two polar. They may shift slightly depending on the time of year following the Sun towards the summer hemisphere.
Polar high pressure belts exist all year round, however, in summer they contract and in winter, on the contrary, they expand. All year round, areas of low pressure persist near the Equator and in the southern hemisphere in temperate latitudes. In the northern hemisphere, things happen differently. In the temperate latitudes of the northern hemisphere, the pressure over the continents increases greatly and the low pressure field seems to be “broken”: it persists only over the oceans in the form of closed areas low atmospheric pressure- Icelandic and Aleutian minimums. Over the continents, where the pressure has noticeably increased, winter maximums form: Asian (Siberian) and North American (Canadian). In summer, the low pressure field in the temperate latitudes of the northern hemisphere is restored. At the same time, a vast area of low pressure is formed over Asia. This is the Asian low.
In the belt increased atmospheric pressure- in the tropics - the continents heat up more than the oceans and the pressure above them is lower. Because of this, subtropical highs are distinguished over the oceans:
- North Atlantic (Azores);
- South Atlantic;
- South Pacific;
- Indian.
Despite large-scale seasonal changes in its performance, belts of low and high atmospheric pressure of the Earth- formations are quite stable.
The psychophysiological state of a person largely depends on the degree of adaptation of the body to the influence of the external environment.
One of the most important natural factors influencing the activity of systems and organs is change in atmospheric pressure.
While in healthy people the reaction to these fluctuations is most often neutral, people with a number of chronic diseases are characterized by increased meteorological sensitivity.
Pressure changes have a particularly negative impact on those who suffer from diseases of the blood vessels and circulatory system.
What is atmospheric pressure
Atmosphere, or the air envelope surrounding the Earth, is a mixture of gases, water vapor, and dust formations. One of the physical parameters characterizing the state of the atmosphere is pressure - a force acting perpendicularly on the surface. The surface of the Earth and everything on it are affected by this force.
Types of atmospheric pressure
Normal atmospheric pressure is conventionally considered to be the air pressure per 1 cm² of the earth's surface with a force equal to 1.033 kg. This value is valid when measured at sea level at t°= 0°С. This mass of air is balanced by a mercury column 760 mm high. It is at this value of atmospheric pressure that a person feels most comfortable.
However, this value is not constant and can vary significantly even within the same area depending on the time of year, wind direction, temperature and humidity. Atmospheric pressure is called elevated if it exceeds 760 mm Hg, and at values less than this value, it is reduced.
Fluctuations in atmospheric pressure are greatly influenced by the temperatures of the Earth's surface, which is heated unevenly. The temperature is higher in hot climate zones, where light air masses are formed and rise upward.
In such conditions, it is created cyclones are areas of low pressure. Over areas with temperate and cold climates, where heavy air masses descend to the ground, high pressure areas - anticyclones.
Video: "What are cyclones and anticyclones?"
The relationship between atmospheric and blood pressure
A person who constantly lives in certain climatic conditions adapts to them and, when the weather is stable, usually feels good. With sudden natural changes in anticyclone and cyclone or in conditions of migration (moving, business trips, travel), the usual comfortable background for the body changes.
And if such changes occur frequently, the body is forced to rebuild itself again and again, adapting to the new situation. Often such changes have a significant impact on the state of the cardiovascular system.
It is customary to talk about three types of relationships between atmospheric pressure and blood pressure.
- If blood pressure decreases with a decrease in atmospheric pressure, and blood pressure increases with an increase in atmospheric pressure, we speak of direct dependence. This type of relationship is more often observed in people suffering from hypotension.
- Partial inverse relationship observed when, with any fluctuations in atmospheric pressure, only the upper blood pressure changes. The second option for a partial inverse relationship is a change in the control figures of only the lower blood pressure with a change in the level of atmospheric pressure. Typically, such a dependence is typical for individuals with normal blood pressure levels.
- Inverse relationship. When atmospheric pressure decreases, both blood pressure indicators increase, and, conversely, when atmospheric pressure increases, both blood pressure indicators decrease. This type of dependence is more typical for hypertensive patients.
How does low atmospheric pressure affect hypertensive and hypotensive patients?
In the zone of cyclone dominance, weather conditions are established with low atmospheric pressure, increased air temperature against a background of high humidity and cloudiness. The oxygen content in the air decreases.
In hypotensive patients with type 1 dependence on atmospheric pressure, blood pressure becomes even lower: blood vessels dilate significantly and their tone decreases. At the same time, blood flow slows down, oxygen starvation develops in tissues and organ cells.
Characteristic symptoms of this condition:
- difficulty breathing;
- attack of spasmodic headache;
- nausea;
- general loss of strength;
- drowsiness.
A sharp decrease in atmospheric pressure can provoke an acute disruption of the blood supply to the brain and even collapse.
To a lesser extent, but still the cyclone also affects people suffering from hypertension. When oxygen supply to the blood is limited, the heart begins to work with increased load, the pulse quickens, and attacks of weakness and mood swings are noted. These symptoms may be aggravated by the fact that a person continues to take antihypertensive drugs to lower blood pressure.
Video: "The relationship between atmospheric and blood pressure"
How does high atmospheric pressure affect hypertensive and hypotensive patients?
In the area of influence of the anticyclone, atmospheric pressure increases, the weather becomes dry and windless, and the lack of wind leads to an increase in the concentration of harmful impurities and dust in the air.
With the combination of such conditions, people suffering from hypertension often feel worse, and there are:
- increase in upper and lower blood pressure values;
- cardiopalmus;
- general weakness;
- throbbing headache in the temples or back of the head;
- flashing “spots” before the eyes.
It would seem that hypotensive patients, who are directly dependent on changes in atmospheric pressure, should not suffer from the influence of the anticyclone with an increase in their own blood pressure. However, people with chronic hypotension feel comfortable with their usual, “working” blood pressure.
Therefore, even minor deviations from the norm cause them to feel worse, reduce their performance, and a sharp increase in atmospheric pressure can provoke a migraine attack and fainting.
Such manifestations of increased sensitivity and the body’s negative reaction to changes in weather and atmospheric pressure indicate a person’s weather dependence.
Tips for weather-sensitive people when changing atmospheric pressure
Without the ability to correct weather conditions, a person can nevertheless reduce the body’s negative reaction to them.
When atmospheric pressure fluctuates Recommended for hypotensive patients following:
- Long sleep, at least 8-10 hours protects the body well during pressure changes.
- The healthiest breakfast for hypotensive people is a sandwich with butter and cheese, porridge, a cup of coffee or green tea. During the day, it is advisable to include vegetables and fruits high in beta-carotene and ascorbic acid in the menu, as well as foods with a high hypoglycemic index.
- The physical activity regime should be gentle, sharp, fast movements should be excluded from the motor stereotype.
- Considered good vascular exercise contrast shower or douche, however, temperature changes should not be extreme, from ice water to boiling water.
- To improve your well-being you can take tonics and immunomodulators natural origin: preparations of ginseng, eleutherococcus, aralia, St. John's wort, Leuzea, Chinese lemongrass, pine and walnuts.
- A light massage of the head and collar area, which you can do yourself, improves overall tone and relieves headaches.
Advice for hypertensive patients to ease the influence of the anticyclone:
For example, during periods of anticyclone strokes most often occur, and cases of heart attacks increase during the days of the influence of the cyclone. You can reduce the risk of developing these pathological situations if you follow some rules.
Conclusion
- You need to remember the meaning of the terms “cyclone” and “anticyclone”, and also understand what reactions in weather-dependent people suffering from hypertension or hypotension are caused by changes in atmospheric pressure.
- This advice is addressed to older people with chronic cardiovascular diseases, especially susceptible to weather changes. For them, on such days, the risk of developing a hypertensive crisis with severe complications increases. In your diary for monitoring your own blood pressure It is necessary to enter data on atmospheric pressure. Monitoring these indicators and their changes in an unfavorable direction will allow you to take supportive measures in a timely manner.
- One should not neglect the prevention system, which includes a proper regimen, a balanced diet, and healthy physical and emotional habits. This lifestyle should always be followed, and not just on days with unfavorable weather conditions.
Cardiologist, therapist, functional diagnostician
Engaged in the management and treatment of patients with diseases of the cardiovascular system. Diagnoses and treats arrhythmia, coronary heart disease, cardiomyopathy, myocarditis, heart failure, etc. Performs spider vein removal - sclerotherapy.
Weather dependence is a common occurrence. Every third adult reacts to changes in weather conditions. Few people know that in fact, people's condition worsens when atmospheric pressure fluctuates.
Definition and essence
The air in the atmosphere is a mixture of gases that have a certain density. Since the air mass is attracted to the globe, it presses on the entire surface of the planet. Including people.
Atmospheric pressure is the mass of air that presses on a person.
In numerical equivalent, the weight of the air mass that puts pressure on us every day fluctuates between 14 and 16 tons or 1.033/cm³. So why don't we notice such heaviness? This is because the fluids in our body balance the pressure. If the force changes for some reason, the balance is upset.
What is it measured in?
Atmospheric pressure is measured using a barometer and thermohygrometer.
So the units of measurement for pressure are:
- millimeters of mercury (mm Hg);
- Pascals;
- bars;
- kg/cm³;
- atmosphere.
What affects the indicator
Atmospheric pressure is a variable indicator; it changes depending on many factors:
- Location of the area above sea level.
- Time of day.
- Weather conditions.
- Climatic conditions.
- Relief.
When ascending one kilometer, the pressure drops by 0.13 from the previous value. For example, a kilometer from sea level, the atmospheric pressure is already 760 and 730 millimeters. This pattern is strictly observed at low altitudes. Then she gets confused.
When descending to a certain depth, the pressure changes in the same proportion.
At night, the pressure increases by 1-2 millimeters of mercury from the daytime value.
Due to the change of cyclones, in which low pressure prevails, and anticyclones, which carry increased atmospheric pressure, the indicator can fluctuate from 641 to 816 mm Hg. Art. at sea level.
Since the human body adapts to living conditions, people have different blood pressure standards. Thus, the norm of a Canadian resident will be significantly different from the norm of an Australian. And even within a country, the indicator may deviate.
Atmospheric pressure standards
The ideal pressure is 760 millimeters of mercury or 1013.25 millibars. In such conditions a person does not feel any discomfort.
But this indicator is specifically measured above sea level in France at an air temperature of +15 degrees Celsius. It is very rarely found in other parts of the planet.
Since different countries have different topography, all inhabitants of the planet are adapted to their normal pressure. For example, residents of Mexico City do not tolerate the indicator considered normal, since their pressure does not exceed 580 mm Hg. Art.
Fluctuations within normal limits
Changes of up to 5 mm are considered normal, and our body copes with them absolutely calmly. In this case, the person does not experience any discomfort or unpleasant sensations.
Fluctuations of 5 to 10 millimeters of mercury can cause discomfort for people with poor health.
More sudden changes can be fatal.
The influence of hell vibrations on the human body
Since balance is achieved through the fluids of our body - blood, lymph, tissue fluid - atmospheric pressure directly affects blood pressure. Changes in one lead to imbalance in the other.
Low barometer reading
A decrease in pressure, which is observed when rising to a height, can lead to the following consequences:
- labored breathing;
- low heart rate;
- fatigue, drowsiness;
- apathy;
- low blood pressure;
- headache;
- attacks of dizziness;
- nausea or vomiting;
- digestive system disorders;
- problems with concentration.
When air pressure decreases, people with respiratory pathologies and usually low blood pressure are at risk. Usually their condition gets worse under such conditions. If a person does not feel changes, such fluctuations can be considered normal for him.
High barometer reading
Fluctuations upward in the mercury column are observed when descending into mines, caves or other lowlands.
Discomfort will differ from low blood pressure:
- ringing in the ears, stuffy ears;
- pulsation in the temples and neck;
- increased blood pressure;
- increased heart rate;
- rush of blood to human skin, redness;
- spots before the eyes;
- headache:
- dizziness;
- nausea or vomiting.
Note!
With elevated atmospheric pressure, heart attacks and strokes often occur. People prone to weather dependence should monitor weather conditions and on days of high blood pressure not overload their body with stress or physical activity.
At-risk groups
If the mercury moves even one division in 2-3 hours, weather-dependent people will feel it. Fatigue, drowsiness, nausea and other unpleasant or even painful symptoms will immediately manifest themselves. Who are classified as people dependent on changes in atmospheric pressure?
Various injuries, diseases or congenital pathologies are the cause of such unpleasant symptoms. So the people who suffer from weather dependence first of all are:
- with high or low blood pressure;
- with respiratory pathologies - asthma, bronchitis, pleurisy, chest injuries, sinusitis, sinusitis;
- with musculoskeletal disorders - arthrosis, osteochondrosis, old injuries;
- with ear diseases;
- after traumatic brain injury or with increased intracranial pressure.
What to do to relieve symptoms
It is very important for middle-aged and older people to take care of their health. Cyclones and anticyclones can cause serious consequences.
To prevent stroke and heart attack, as well as alleviate unpleasant symptoms, you should listen to some tips:
- Consultation with your doctor. He, based on the patient’s characteristics, will be able to select the right drug or, for example, treatment in an oxygen pressure chamber.
- Regularly checking weather conditions. It is necessary to free such days from stress at work and at home.
- Correct sleep schedule. Sleep duration should be at least 7 hours. When the weather changes, it is better to go to bed earlier.
- Proper nutrition. The menu should be balanced and complete. Eliminate fatty foods, but consume foods containing omega 3-6-9 acids.
- Walks in the fresh air (preferably in the evening).
- Moderate physical activity.
- Reduced stress levels.
Conclusion
Since the relief and climate on the planet differ significantly, there is no absolute standard for atmospheric pressure. Many middle-aged and older people are susceptible to weather dependence, so they should be careful and careful about their health during cyclones and anticyclones. There are several ways to cope with unpleasant symptoms during changes in atmospheric pressure.
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About a third of our planet's population reacts sensitively to environmental changes. Most of all, a person’s well-being is influenced by atmospheric pressure - the attraction of air masses to the Earth. What atmospheric pressure is considered normal for a person depends on the area in which he spends the vast majority of the time. Everyone will find their familiar conditions comfortable.
What is atmospheric pressure
The planet is surrounded by an air mass, which, under the influence of gravity, presses on any object, including the human body. The force is called atmospheric pressure. Each square meter is pressed by a column of air weighing approximately 100,000 kg. Atmospheric pressure is measured using a special device - a barometer. It is measured in pascals, millimeters of mercury, millibars, hectopascals, atmospheres.
The normal atmospheric pressure is 760 mm Hg. Art., or 101 325 Pa. The discovery of the phenomenon belongs to the famous physicist Blaise Pascal. The scientist formulated a law: at the same distance from the center of the earth (it doesn’t matter, in the air, at the bottom of a reservoir), the absolute pressure will be the same. He was the first to propose measuring heights using the barometric alignment method.
Atmospheric pressure standards by region
It is impossible to find out what atmospheric pressure is considered normal for a healthy person - there is no definite answer. The impact varies across different regions of the globe. Within a relatively small area, this value can vary noticeably. For example, in Central Asia, slightly elevated numbers are considered standard (on average 715-730 mm Hg). For central Russia, normal atmospheric pressure is 730-770 mm Hg. Art.
Indicators are related to the elevation of the surface above sea level, wind direction, humidity and ambient temperature. Warm air weighs less than cold air. Over an area of high temperature or humidity, the compression of the atmosphere is always less. People living in high mountain areas are not sensitive to such barometer readings. Their body was formed under these conditions, and all organs underwent appropriate adaptation.
How pressure affects people
The ideal value is 760 mmHg. Art. What awaits when the mercury column fluctuates:
- A change in optimal indicators (up to 10 mm/h) already leads to a deterioration in well-being.
- With a sharp increase or decrease (on average by 1 mm/h), even healthy people experience a significant deterioration in well-being. Headache, nausea, and loss of performance appear.
Meteor dependence
A person’s sensitivity to weather conditions – wind changes, geomagnetic storms – is called weather dependence. The influence of atmospheric pressure has not yet been fully studied. It is known that when weather conditions change, internal tension is created inside the vessels and cavities of the body. Meteorological dependence can be expressed:
- irritability;
- pain of various localization;
- exacerbation of chronic diseases;
- general deterioration of health;
- problems with blood vessels.
In most cases, people with the following diseases suffer from weather dependence:
- respiratory tract diseases;
- hypo- and hypertension.
Reaction to high blood pressure
A decrease in barometer readings by at least 10 units (770 mm Hg and below) has a negative impact on health. People with long-standing diseases of the cardiovascular and digestive systems are especially affected by weather changes. On such days, doctors recommend reducing physical activity, spending less time on the street, and not abusing heavy foods and alcohol. Among the main reactions:
- feeling of congestion in the ear canals;
- decrease in the number of leukocytes in the blood;
- decreased activity of intestinal motility;
- dysfunction of the cardiovascular system;
- poor ability to concentrate.
The weight of air determines atmospheric pressure (1 m 3 of air weighs 1.033 kg). For every meter of the earth's surface, air presses with a force of 10033 kg. It is a column of air from sea level to the upper atmosphere. For comparison: a column of water of the same diameter would have a height of only 10 m. In other words, the own mass of air creates atmospheric pressure, the value of which per unit area corresponds to the mass of the air column located above it. In this case, a decrease in air in this column leads to a decrease (drop) in pressure, and an increase in air leads to an increase (increase) in pressure. Normal atmospheric pressure is taken to be air pressure at sea level at a latitude of 45° and at a temperature of 0°C. In this case, it presses on every 1 cm 2 of the earth's surface with a force of 1.033 kg, and the mass of this air is balanced by a mercury column 760 mm high. The principle of pressure measurement is based on this dependence. It is measured in millimeters (mm) of mercury (or millibars (mb): 1 mb = 0.75 mmHg) and in hectopascals (hPa), when 1 mm = = 1 hPa.
Atmospheric pressure is measured using barometers. There are two types of barometers: mercury and metal (or aneroid).
A mercury cup consists of a glass tube sealed at the top and immersed with the lower open end into a metal cup containing mercury. A column of mercury in a glass tube balances with its weight the air pressure acting on the mercury in the cup. When the pressure changes, the height of the mercury column also changes. These changes are recorded by the observer on a scale attached next to the glass tube of the barometer.
A metal barometer, or aneroid, consists of a hermetically sealed thin-walled corrugated metal box, inside which the air is rarefied. When the pressure changes, the walls of the box vibrate and are pressed in or out. These vibrations are transmitted by a system of levers to the arrow, which moves along a graduated scale.
Self-recording barometers called barographs are used to record changes in pressure. The operation of the barograph is based on the fact that the vibrations of the walls of the aneroid box are transmitted, which draws a line on the tape of the drum rotating around its axis.
Pressure on the globe can vary widely. Thus, the maximum value is 815.85 mm Hg. (1087 mb) was registered in winter in Turukhansk, the minimum is 641.3 mm Hg. (854 MB) - in “Nancy” over the ocean.
Pressure changes with altitude. It is generally accepted that the average value of atmospheric pressure is pressure above sea level - 1013 mb (760 mm Hg). As altitude increases, the air becomes more rarefied and the pressure decreases. In the lower layer of the troposphere to a height of 10 m it decreases by 1 mm Hg. for every 10 m, or 1 mb (hPa) for every 8 m. At an altitude of 5 km it is already two times less, 15 km - 8 times, 20 km - 18 times.
Atmospheric pressure changes continuously due to the change and movement of air. During the day it increases twice (in the morning and in the evening), and decreases twice (after noon and after midnight). Throughout the year, the maximum pressure is observed in winter, when the air is supercooled and compacted, and the minimum is observed in summer.
The distribution of atmospheric pressure over the earth's surface has a well-defined zonal character, which is due to uneven heating of the earth's surface, and consequently, changes in pressure. The change in pressure is explained by the movement of air. It is high where there is more air, low where the air leaves. When heated from the surface, the air rushes upward and the pressure on the warm surface decreases. But at altitude, the air cools, becomes denser and begins to fall to neighboring cold areas, where the pressure increases. Thus, heating and cooling of air from the Earth's surface is accompanied by its redistribution and pressure changes.
In equatorial latitudes, air temperatures are constantly high; the air, heating up, rises and moves away. Therefore, in the equatorial zone the pressure is constantly low. In tropical latitudes, increased pressure is created as a result of air influx. Above the constantly cold surface of the poles (and) the pressure is increased, it is created by air coming from latitudes. At the same time, in temperate latitudes, the outflow of air forms a belt of low pressure. As a result, belts of low (and two moderate) and high (two tropical and two polar) pressures are formed on Earth. Depending on the season, they shift somewhat towards the summer hemisphere (following the Sun).
Polar high pressure areas expand in winter and contract in summer, but persist throughout the year. Low pressure belts persist throughout the year near and in the temperate latitudes of the southern hemisphere. The picture is different in the northern hemisphere. Here in winter, in temperate latitudes over the continents, the pressure increases greatly and the low pressure field seems to be “broken”: it is preserved only over the oceans in the form of closed areas of low pressure - the Icelandic and Aleutian lows. But over the continents, where the pressure has noticeably increased, so-called winter maxima are formed: Asian (Siberian) and North American (Canadian). In summer, in the temperate latitudes of the northern hemisphere, the low pressure field is restored. At the same time, a vast area of low pressure forms over Asia - the Asian Low.
In tropical latitudes - a belt of high pressure - the continents always warm up more than the oceans, and the pressure above them is lower. This causes subtropical maxima over the oceans: North (Azores), North Pacific, South Atlantic, South Pacific and Indian.
In other words, the Earth’s belts of high and low pressure, despite large-scale seasonal changes in their indicators, are quite stable formations.