Geography How the formation of the five belts was formed

It is due to the rotation of the earth, and the plumb line between the earth's axis and the orbital plane is inclined by 23°26', and the direction of inclination remains unchanged, so that the direct point of the sun hovers between 23°26' north and south latitudes. In this way, on the one hand, the length of day and night varies in all parts of the world (except the equator), and the phenomenon of polar day and night occurs in the polar circle; On the other hand, there is a change in air temperature, which decreases from the equator to the poles, which is the result of the gradual decrease in the solar altitude angle from the equator to the poles, and finally forms the five belts of the earth.

The formation of the five bands is mainly determined by the yellow-red intersection angle, (that is, the angle between the orbital plane of the Earth's rotation and the orbital plane of the Earth's revolution), which is determined by the size of 23°26'. The size of this corner determines the size of the five-band range.

Due to the presence of this angle, a change in the length of day and night and a change in the angle of the height of the sun at noon are caused. And these two factors will directly lead to the difference in local heat at different latitudes on the earth, thus forming the five belts.

You will find that the dividing line between the five zones is exactly whether there is direct sunlight and whether there is a polar day and a polar night.

The fundamental reason why there are four seasons and five zones on the earth is the yellow-ecliptic angle, that is, the inclination of the ecliptic plane to the equatorial plane;

The immediate cause of this is the regression motion of the Sun relative to the equator.

The division of the five zones: the tropics are between the Tropic of Cancer, the North Temperate Zone is between the Arctic Circle and the Tropic of Cancer, the South Temperate Zone is between the Antarctic Circle and the Tropic of Capricorn, the North Pole is north of the Arctic Circle, and the South Pole is south of the Antarctic Circle.

Reading and analyzing the map shows that: (1) Five belts.

In the tropics, there is direct sunlight, and it is hot all year round; The southern and northern cold zones are polar day and night.

phenomenon, cold all year round; In the northern and southern temperate zones, there is neither direct sunlight nor polar diurnal phenomena, and the four seasons change significantly (2) due to the rotation of the earth.

The distribution of solar heat on the surface is different, and people divide the earth's surface into five temperature zones: tropical, north temperate, southern temperate, northern and southern arctic according to the amount of solar heat obtained by different regions on the earth's surface (3) It can be seen from the figure that the dividing line between the northern and northern temperate zones.

It is the Arctic Circle, and the dividing line between the tropics and the southern temperate zone is the Tropic of Capricorn (4) Among the five belts, the tropics have direct sunlight and the most abundant light and heat; The temperate zone has neither direct sunlight nor diurnal phenomena, and the four seasons change obviously, which is the most suitable for human survival and development. China is mainly located in the northern temperate zone, and a small part is in the tropics Therefore, the answer is: (1) Name of the five zones Geographical phenomenon Climatic characteristics Whether there is no polar day and night Whether there is direct sunlight Tropical None Liquid fissures Hot all year round South and North temperate zones None None Four seasons are distinct South and North cold zones Yes or no Cold all year round (2) Revolution; (3) the Arctic Circle; Tropic of Capricorn; (4) heat; Lukewarm; North Vancouver

Due to the rotation of the earth, the distribution of solar heat on the surface of the earth is different, and people envy the amount of solar heat obtained by different regions on the surface of the earth, and the previous calendar divides the earth's surface into five temperature zones: tropical, northern temperate, southern temperate, northern cold and southern arctic zone

So the answer is: the earth revolves

Geographically, the "five zones" refer to the five temperature zones that divide the earth's surface into five temperature zones according to latitude, namely tropical, southern temperate, northern temperate, southern cold and northern cold according to the variation of the height of the sun and the length of day and night with latitude.

Throughout the year, the direct point of the sun always moves back and forth between 23°26 north latitude and 23°26 south latitude. Only in the area between the Tropic of Cancer and the Tropic of Cancer can you see the sun shining directly overhead. This region receives the most solar heat in the globe and is called the tropics.

In the areas south of the Antarctic Circle and north of the Arctic Circle, the solar altitude angle is very small, and the polar day and night phenomena can be observed, and the solar heat obtained is very small, and the temperature is very low, which is called the cold zone.

The area between the Tropic of Cancer and the Antarctic Circle is between the tropics and the cold zone, and the temperature is also relatively moderate, and the four seasons are distinct, which is called the temperate zone.

Boreal North North Temperate Tropical South Temperate South Arctic Zone.

Tropical Astronomical low latitudes, between 23°26' north and south latitudes, spanning 46°52' latitudes, covering a surface area. There is direct sunlight, there is no winter all year round, the length of day and night changes little, the length of the day is 10:35 to 13:25.

Temperate The astronomical mid-latitude zone, between 23°26' north and south latitude and 66°34' north and south latitude. The north and south temperate zones each span 43°08' latitude and cover a total surface area. There is neither direct sunlight nor polar day and night, and the four seasons are distinct, and the length of day and night varies greatly, ranging from 2:50 to 24:00.

Arctic Astronomical high latitudes, between 66°34' and 90°N. The north and south cold zones each span latitude 23°26', and the two together cover a surface area. The sun altitude angle is small, and there is no summer all year round.

There is a polar day and night phenomenon, the duration of which is one day in the polar circle and half a year at the pole.

They are the southern cold zone, the northern cold zone, the tropical zone, the north temperate zone, and the southern temperate zone.

the tropics between the Tropic of Cancer; the northern temperate zone between the Tropic of Cancer and the Arctic Circle; the temperate zone between the Tropic of Cancer and the Antarctic Circle; the boreal zone north of the Arctic Circle; The Antarctic zone south of the Antarctic Circle.

From north to south, they are: boreal zone, north temperate zone, tropical zone, south temperate zone, and south cold zone.

According to the changes of the height of the sun and the length of day and night with latitude, the regions with common characteristics on the earth's surface are divided into five thermal zones according to latitude, namely, tropical, southern temperate, northern temperate, southern cold and northern cold.

Tropical: between 23°26'S and 23°26'N.

South temperate zone: between 66°34'S and 23°26'S.

North temperate zone: between 66°34' N and 23°26' N.

Boreal zone: between 66°34'S and 90°S.

Boreal zone: between 66°34' N and 90° N.

Tropical, North Temperate, South Temperate, North Cold, Southern Cold.

Tropical, north-south temperate, north-south boreal.

Boreal North North Temperate Tropical South Temperate South Arctic Zone.

Five Belt Features:

Tropical: The ground receives the most light and heat, and it is very hot in all seasons, and there is direct sunlight in the northern and southern cold zones: the ground receives the least light and heat, and it is very cold in all seasons, and there is a polar day and night phenomenon in the northern and southern temperate zones: the ground obtains light and heat between the tropics and the cold zone, and the four seasons are distinct.

The division of the five zones of the earth is based on the division of the earth's surface into "five zones" according to the amount of solar heat obtained by each place, whether there is vertical irradiation of the sun's rays, and whether there are polar day and polar night phenomena: tropical, northern temperate, southern temperate, northern and southern arctic zones.