What is the latitude of the individual barometric pressure bands

Between the equator and 10 degrees north and south latitudes--- the equatorial depression zone.

Between 10 degrees north and south latitude and the Tropic of Cancer--- the northeast trade wind belt (north), the southeast trade wind belt (south), and the Tropic of Cancer and 40 degrees north and south latitude ——— the subtropical high pressure zone.

Between 40 and 60 degrees north and south latitudes——— westerly wind belt prevails.

60 degrees north and south latitude to the North and South Pole Circle——— subpolar low pressure zone.

The polar circle to 80 degrees ——— polar easterly belt.

Near the poles——— polar high pressure zones.

High school geography, in fact, this is very easy to understand! On the spring and autumn equinoxes, the pressure and wind bands are roughly symmetrically distributed around the equator.

Between 5° north and south latitude is the equatorial depression zone.

Latitudes 5° to 25° north and south are the trade wind belts.

The latitude between 25° and 35° north and south is the subtropical high pressure zone.

The north-south latitude of 35° to 55° (in fact, up to 60° in the northern hemisphere) is the prevailing westerly wind belt.

From 55°N/N, to the vicinity of the Polar Circle, there is a subpolar depression zone.

The North and South Polar Circles to 85° north and south latitudes are the polar easterly belts (this data is less accurate), and near the North and South poles is the polar high pressure belt.

As the point of direct fire moves, the air pressure belt and wind band will move with it.

The range of movement is about 5° north and south. Summer solstice.

It reaches its northernmost point near the winter solstice, then moves southward, and reaches its southernmost point near the winter solstice. It is related to the point of direct sunlight

Between the equator and 10 degrees north and south latitudes--- the equatorial depression zone.

10 degrees north and south latitude to the Tropic of Cancer.

Between --- Northeast Trade Wind Belt (north), Southeast Trade Wind Belt (south), Tropic of Cancer and 40 degrees north and south latitude, ——— subtropical high pressure zone.

Between 40 and 60 degrees north and south latitudes——— westerly wind belt prevails.

60 degrees north and south latitude to the North and South Pole Circle——— subpolar low pressure zone.

The polar circle to 80 degrees ——— polar easterly belt.

Near the poles——— polar high pressure zones.

1.Equatorial depression zone.

At the equator and on both sides, it is the zone with the largest solar altitude angle, where the sun receives the most heat, and the ground warms up high, and the air close to the ground expands and rises due to heat, and the air decreases and the air pressure decreases. In this way, in the area between 5° north and south latitudes, a low pressure zone and an equatorial low pressure zone are formed.

2.Subtropical high pressure zone.

Distribution: It is distributed on the west coast of the continent between 30 and 40° north latitudes. It is also widely distributed and is the only type of climate found on all continents of the world except Antarctica.

The eastern part of the subtropical high is a strong subsidence movement area, and the downdraft is warmed by adiabatic compression, and the controlled area will have persistent sunny and hot weather. The western part of the subtropical high is a low-level warm and moist air convergence and upward movement area, which is prone to thundershowers. With the change of seasons, the intensity and position of the subtropical high belt will also change significantly.

From January to July, the main body of the subtropical high showed a trend of moving northward and westward and intensifyingFrom July to January, the main body of the subtropical high moved southward and eastward, and weakened in intensity. This seasonal change also has different phases of obvious slow change and jump change. The subtropical high pressure zone is located in the subtropical region of the ambiguous high pressure.

It is located around 30 degrees north and south latitudes. This high-pressure belt is the boundary between the prevailing westerly and easterly winds, and its high-latitude side is the westerly belt. Under the control of the subtropical high, the weather is clear, and on its northwest side is the southwest airflow control jump area (the general rain zone).

The high pressure between the tropics and the temperate zone is called the subtropical high, and the Pacific subtropical high that controls the Pacific region is usually called. Varies with the seasons and is generally active between 10 and 40°N.

Distribution: There are 5 regions in the world with a Mediterranean climate:

The Mediterranean coast, including southern Europe, northern Africa, and a few parts of Western Asia. North American California coast. The west coast of southern Africa, i.e., western South Africa and southern Namibia (known as the Cape or Cape of Good Hope).

Central Chile, South America. The southwest and southeast coasts of Australia (although south-east, they are part of the west coast, near Adelaide, not around Sydney).

3.Subpolar low-pressure belt.

The subpolar depression zone determines the level of air pressure according to the principle of decreasing air temperature from the equator to the poles and the inverse relationship between the level of air pressure and the temperature of air temperature. If there is a high temperature near the equator throughout the year, then according to the inverse relationship between the temperature and the air pressure, it is concluded that the low pressure zone near the equator should be.

The temperature near 30° north latitude is lower than near the equator, so it should be a high pressure zone, because 30 ° north latitude is close to the tropics but not tropical, so it is called the subtropical high pressure zone here.

The air temperature near 60 degrees north latitude is higher than the temperature of 90 degrees in the north and south poles, so its pressure should be a low pressure zone, because it is close to the polar regions rather than the polar regions, so it is a subpolar low pressure belt. The temperature near 90°C in the north and south of the North Pole is very low throughout the year, so it should be a high pressure zone, so it is called the polar high pressure zone.

Seven latitude barometric pressure zones.

The equatorial low pressure source belt is generally active in the north and south subtropical high pressure belt within the range of 10 degrees north and south latitudes, generally distributed in the north and south subpolar low pressure belts within the range of the Tropic of Cancer to 30 degrees latitude, generally distributed in the north and south pole high pressure within the latitude range of 55-65 degrees, and generally distributed in the polar regions north of 80 degrees These pressure belts are not fixed, moving to high latitudes in summer and low latitudes in winter.

The equatorial low-pressure zone is bai, generally active.

du is within 5 degrees north and south latitudes.

The subtropical high-pressure zone is generally distributed.

DAO is at the Tropic of Cancer.

within 30 degrees of latitude.

The subpolar capacity low pressure zone is generally distributed in the latitude range of 55-65 degrees in the polar high pressure, and is generally distributed in the polar region north of 80 degrees.

These pressure zones are not fixed, moving towards higher latitudes in summer and lower latitudes in winter.

*The equatorial low pressure belt is near 0, the low-latitude source trade wind belt is between 0 and 30°, the subtropical high is near Bai30°, the mid-latitude westerly wind belt is from more than 30 to DU60, and the sub-DAO is near Zhi60

The polar low-pressure belt, more than 60 to 90 is the polar easterly wind belt, and around 90 is the polar high-pressure belt, which is the case in both the northern and southern hemispheres.

With the movement of the direct sun point, the pressure belt and wind belt will move collectively: the direct point will move northward, and the pressure belt and wind belt will move northward as a whole; The same goes for moving south.

If the direct point is in the Northern Hemisphere, the pressure belt wind belt moves northward, and the low-latitude trade winds (southeast winds) in the Southern Hemisphere will cross the equator and become the envelope of the Northern Hemisphere (southwest trade winds), and 30° was originally the subtropical high, which was replaced by the trade winds, and the subtropical high moves northward, and the same is true for other wind belts.

If you shoot straight into the southern hemisphere, you will move south.

Seven latitude pressure zones.

The equatorial low pressure zone is generally active within 10 degrees north and south latitudes.

The north-south subtropical high pressure belt.

It is generally distributed at the line of relapse.

to within 30 degrees of latitude.

The low pressure zone of the northern subpolar subtropical zone in the south and spring is generally distributed in the latitude range of 55-65 degrees.

The high pressure in the North and South Poles is generally distributed in the polar regions north of 80 degrees.

These pressure zones are not fixed, moving towards high latitudes in summer and low mountains in winter.

Between the equator and 10 degrees north and south latitudes--- the equatorial depression zone.

10 degrees north and south latitude to the Tropic of Cancer Nakano.

Between ---the northeast trade wind belt (north), the southeast trade wind belt (south), the north-south tropic of cancer and the north-south latitude between the north——— north and south latitude and the high pressure zone.

Between 40 and 60 degrees north and south latitudes——— the first training is prevalent in the westerly wind belt.

60 degrees north and south latitude to the North and South Pole Circle——— subpolar low pressure zone.

The polar circle to 80 degrees ——— polar easterly belt.

Near the poles——— polar high pressure zones.

Barometric pressure and temperature: high surface temperature - low air pressure, low surface temperature - high air pressure looks at the troposphere: the temperature decreases with increasing altitude, the higher the altitude, the lower the temperature, the concentration of 3 4 atmospheric mass, the higher the altitude, the smaller the air density, the lower the air pressure, therefore, with the increase of altitude, the air pressure decreases.

Relationship between barometric pressure and altitude:

In addition to altitude, there are also weather, season, temperature, and latitude. Weather changes are available.

The air pressure changes by 10mmHg overnight, which is equivalent to a change between 3500m and 3658m, or between 7925m and 8230m.

The relationship between altitude and air pressure is roughly the following mathematical equation:

Sea level = 760 mmHg is set as standard condition.

Gas pressure is generated by the collision of gas molecules against the walls of the container. The larger the kinetic energy of the molecule, the denser the molecule, and the greater the pressure. The air at high altitude is thin, the molecular density is small, the temperature is low, and the average kinetic energy of the molecules is small, so the pressure is small.

A case in the Northern Hemisphere:

a.The low-latitude circulation is the circulation between the equator and the Tropic of Capricorn, which is the equatorial depression zone.

b.The mid-latitude circulation refers to the circulation between the Tropic of Cancer and the Zenzen at 60°N, which is a subtropical high pressure zone.

c.The high-latitude circulation refers to the circulation between 60°N and the Arctic Circle, which is a polar depression zone.

The polar high pressure zone is a circulation in the North and South Poletic Circles, so it also belongs to the high latitude circulation.

In the same way, the northern and southern hemispheres are symmetrically distributed, and the same is true for the southern hemisphere!

In addition, help students analyze the distinction between high and low pressure of the circulation

First of all, the surface temperature on both sides of the equator on both sides of the earth is higher (tropical) and it is easier to form updrafts, and a large number of updrafts carry away the air on the surface, while the surrounding air replenishment is relatively lagging behind, so a low pressure state is formed near the surface.

Secondly, when the updraft rises to a certain height, it accumulates at high altitude due to cold condensation or condensation, forming a high-altitude high-pressure state.

Third, when the air flow at high altitude condenses or condenses to a certain extent, and the void left by the surface air flow is replenished, the air flow in the upper air descends to the surrounding area (precipitation may form during the period), and then a complete circulation is formed.

The mid-latitude circulation and the high-latitude circulation are similar, starting from low latitudes, due to the temperature difference caused by the convection of the atmosphere, and finally forming a global circulation!

Seven latitude pressure zones.

The equatorial low pressure belt is generally active in the north and south subtropical high pressure belt within the range of 10 degrees north and south latitudes, generally distributed in the north and south subpolar low pressure belts within the range of the Tropic of Cancer to 30 degrees latitude, generally distributed in the north and south pole high pressure within the latitude range of 55-65 degrees, and generally distributed in the polar regions north of 80 degrees These pressure belts are not fixed, moving to high latitudes in summer and low latitudes in winter.