Why the sun appears high in summer and short in winter is explained in detail

A: You're asking about geography.

At that time, because: in summer, the weather is generally brighter, and there is nothing in the sky to block people's vision, so people seem to have a higher sun in summer; In winter, there are generally many rainy days, and there is more moisture and gas in the air, which is easy to block people's vision, so people look short when they look at the sun in winter. In fact, according to the analysis of geographical knowledge, the sun should be close to us in summer and far away from us in winter, because we belong to the northern hemisphere, in summer, the sun shines on the northern hemisphere, and in winter, the sun shines on the southern hemisphere.

Above, I hope you can understand, thank you!

Summer sun.

Higher. In summer, the sun is high and the sun shines in direct sunlight, so it will be very hot. In winter, the sun is low and the sun shines obliquely, so the temperature is low. Sun altitude angle.

It varies with local time and the declination of the sun. Sunrise and sunset, the angle of sun elevation in the same place is constantly changing throughout the day. The hour angle is calculated from 12 noon to 0 degrees, and every hour is 15 degrees.

Extended information: The point of direct sunlight increases as it moves and decreases as it moves away (the point of direct sunlight relative to the latitude of a place). For example, for an area of 31°N, between December 22 and June 22.

The altitude angle of the sun gradually increases at noon, and June 22 (summer solstice.

By December 22 (the winter solstice), the solar elevation angle at noon gradually decreased. When the Sun moves from the equator to the Tropic of Capricorn.

The sun is higher in the summer.

In summer, the sun is high and the sun shines in direct sunlight, so it will be very hot. In winter, the sun is low and the sun shines obliquely, so the temperature is low. The solar altitude angle changes with local time and the declination of the sun.

Sunrise and sunset, the angle of sun elevation in the same place is constantly changing throughout the day. The hour angle is calculated from 12 noon to 0 degrees, and every hour is 15 degrees.

Find the Tropic of Cancer and the Tropic of Cancer on the world map When winter, the sun's rays shine directly on the Tropic of Capricorn, because China is in the northern hemisphere, so it is slanted away from the sun. In summer, the sunlight shines directly on the Tropic of Capricorn, and because China is in the northern hemisphere, it is closer to the sun and almost direct. So on the ground, when the rise is highest, it will be a little higher in the summer.

In the summer, the sun is at 90 degrees Celsius, so it is the hottest.

The Earth's orbit around the Sun is elliptical, with the Earth at aphelion in winter (January) and perihelion in summer (July).

The sun is high in summer, which can be seen from the shadows of the trees. The higher the sun, the shorter the shadow.

Actually, there is not much difference between this, but in the summer the earth is at aphelion, or in the summer, it is higher.

The winter ones are higher because the winters are colder than the summers.

Earth, like every planet in the solar system, revolves around the sun in its own elliptical orbit. Therefore, there is a point in the orbit that is farthest from the sun, called the Earth"Ahelion"；There is another point closest to the sun, which is called the earth's"Perihelion"。Earth's aphelion after the summer solstice, usually at the beginning of the month; Perihelion is after the winter solstice, usually at the beginning of the month.

Due to the small eccentricity of the Earth's orbit, the distance from the perihelion of the Earth to the Sun is less than the distance from aphelion to the Sun. The temperature should be determined by the solar altitude angle, which is calculated by subtracting 90 degrees (the absolute value of the difference between the local latitude and the direct radiation), and the weather is hottest when the solar altitude angle is the largest. So the answer on the ground floor is wrong.

Of course, winter is far away, otherwise how do you know that winter is colder than summer?

In the Northern Hemisphere during the summer, the Earth's axis is tilted in the direction of the Sun, so the position of the Sun appears higher in the summer.

The intersection angle between the white plane of the moon and the ecliptic plane of the earth is not large, it is 5 degrees and 9 minutes, and in winter, the direction of the earth's axis is opposite to that of summer, and it is biased in the opposite direction of the sun, which is similar to the height of the sun in summer, and the moon appears high in winter.

This is the northern hemisphere, and the southern hemisphere is the opposite.

The solar altitude angle is abbreviated as"Sun altitude"(Actually, it's an angle).

The height of the sun is the most important factor that determines the amount of solar heat energy received by the Earth's surface.

We use h to represent this angle, which is numerically equal to the horizon height of the Sun in the Earth's horizon coordinate system.

Folded general time.

The solar altitude angle changes with local time and the declination of the sun. The declination of the sun (equal to the latitude of the direct point of the sun) is expressed in δ, the geographical latitude of the observation place is expressed by (the declination of the sun and the geographical latitude are both positive north latitude and negative south latitude), local time (time angle) is represented by t, and there is a formula for calculating the altitude angle of the sun

sin h= sin φ sin δ+cos φ cosδ cos t

Folds the midday time.

Sunrise and sunset, the angle of sun elevation in the same place is constantly changing throughout the day. The hour angle is calculated from 12 noon to 0 degrees, and every hour is 15 degrees. That is, 14 o'clock and 10 o'clock are 30 degrees and -30 degrees respectively. The angle is 0,<> at sunrise and sunset

Sun altitude angle at noon The solar altitude angle is the largest (90°) at noon, and the hour angle is 0

In summer, the sun is high. In summer, the sun is high and the sun shines directly, so it can be very hot. In winter, the sun is low and the sun is oblique, so the temperature is low.

The solar altitude angle changes with local time and the declination of the sun. Sunrise and sunset, the angle of sun elevation in the same place is constantly changing throughout the day. The hour angle is calculated from 12 noon to 0 degrees, and every hour is 15 degrees.

In summer, the sun is high. In summer, the sun is clear and the sun is direct, so it can be very hot. In winter, the sun is low and the sun shines obliquely, so the temperature is low.

The solar altitude angle changes with local time and the declination of the sun. Sunrise and sunset, the angle of sun elevation in the same place is constantly changing throughout the day. The hour angle is calculated from 12 noon to 0 degrees, and each small orange beats at 15 degrees.

I'm here to look around the first floor, this "1183525369" classmate is really talented! Hahahaha amused me.

Okay, so here's the simplest (but by no means the most inaccurate) explanation: you think the sun doesn't move, the earth doesn't move, but the axis of rotation (the axis that leads from the north pole to the south pole) slowly shakes. In summer, the North Pole "nods" to the sun, so that the sunlight hits directly at a certain point in the Northern Hemisphere, such as directly on your house, you feel that the sun is high.

In winter, the South Pole "swings" towards the sun, and you feel that the sun is low.