How thick the atmosphere is. Want to know how thick the atmosphere is?

How thick is the Earth's atmosphere?

Aristotle of ancient Greece once speculated; The earth is made up of four layers, which are the earth, the water, the air (i.e., the atmosphere), and fire (which can only be seen by chance during lightning). "Fire layer"There's another layer of ethereal underneath"Aether layer"。

But he did not specify the thickness of the layers.

In 1644, Torricelli and Vivani experimentally proved that the atmosphere has weight, and therefore a finite altitude. They calculated that the thickness of the atmosphere was about 8 kilometers.

In 1662, Boyle experimentally learned that the volume of the gas shrinks when it is pressurized, so it is in the vertical direction of the atmosphere. The atmosphere is the densest at sea level, thinner the higher it goes. In this way, people began to realize that the thickness of the atmosphere is definitely more than 8 km.

If we take into account the changes in temperature, the question of where the upper limit of the atmosphere is located becomes even more confusing.

Many scientists have made unremitting efforts to explore this topic. By the 40s of the 20th century, rocket technology was successful, and the limit of detection of the upper limit of the atmosphere by rockets exceeded 400-500 km.

Later, with the development of space technology, it was found that the aurora appeared about 800-11,200 kilometers above the sky, so some scientists took 1,200 kilometers as the physical upper limit of the atmosphere. With the continuous understanding of the atmosphere, the American scientist Spitzer called the altitude of 500-1600 kilometers"Outer atmosphere"and that the atmosphere gradually dissolves into the interstellar character from this height. At present, astrophysical studies have shown that the neutral gas mass density of interstellar matter is 1 cm3 and the electron concentration is 10 2 10 3, cm 3, according to this limit and the information provided by satellites, the upper limit of the atmosphere is about 2000 3000 km.

There are also scientists who are constantly coming up with new ideas. As found in the Belgian Nikelai altitude range of 320 1000 km there exists"Helium layer", in"Helium layer"In addition, there is a layer of thinner"Hydrogen layer", which may extend to an altitude of about 64,000 km.

The height of the upper limit of the atmosphere on the earth often varies greatly depending on the basis and purpose of scientists, so it may always be a difficult problem for scientific research to accurately delineate the height of the upper atmosphere and make it recognized by everyone. Hope!

The equatorial region is thicker, and the two acoratiens are thinner. How thick it is, the teacher said, I forgot.

The thickness of the atmosphere cannot be accurately measured, about 1,000 kilometers.

The atmosphere, also known as the atmosphere, is a layer of mixed gas that surrounds the earth due to gravity, and is the outermost gasesphere of the earth, surrounding the ocean and land, the atmosphere has no exact upper bound, and there are still thin gases and elementary particles at an altitude of 2000 to 16000 kilometers above the earth's surface.

Underground, there are also small amounts of gases in the soil and in certain rocks, which can also be considered a component of the atmosphere, and the main components of the Earth's atmosphere are nitrogen, oxygen, argon, carbon dioxide and less than a proportion of trace gases, these mixtures of gases are called air.

Stratification of the atmosphere

According to the law of temperature change, our atmosphere is divided into five layers, including troposphere, stratosphere, mesosphere, thermosphere, and fugitive layer.

The troposphere is the lowest layer of the atmosphere, with an average thickness of 12 km. The stratosphere is located at an altitude of 10 km to 50 km above the surface of the earth and has an average thickness of 40 km. The mesosphere is about 85 km from the stratosphere to about 85 km of the atmosphere, with an average thickness of 35 km.

The ionosphere is the ionization region of the Earth's atmosphere, when the atmosphere is in a state of partial ionization and complete ionization. The outermost layer is the outer layer, which means that the air is extremely thin except for the previous levels.

The atmosphere is about 6,400 kilometers thick。Under the gravitational pull of the earth, a large amount of gas gathers around the earth, forming an atmosphere. Although scientists are accustomed to calling it the thin blue line, the atmosphere is still very thick.

Sounding rockets can still detect the rarefied atmosphere at an altitude of 3,000 kilometers above the ground. It is even believed that the atmosphere could be around 6,400 kilometers thick.

The composition of the atmosphereThe entire atmosphere exhibits different characteristics with different altitudes, and is divided into troposphere, stratosphere, ozone layer, mesosphere, thermosphere and fugitive layer, and above it is interstellar space. The atmosphere is a meteorological term, which is a layer of mixed gas that surrounds the earth due to gravity, and is the outermost gasosphere of the earth, surrounding the ocean and land, and the thickness of the atmosphere is about 1000 kilometers or more, but there is no clear boundary.

Atmospheric thickness: about 10,000 meters.

But the true thickness of the atmosphere is much more than 10,000 meters, and the data are divided due to the different criteria for scientists to determine the atmosphere. It is generally believed that the thickness of the atmosphere is 100 kilometers, or 100,000 meters. But some scientists believe that the actual thickness of the atmosphere is far more than 100 kilometers, but a staggering 600,000 kilometers, about twice the distance between the Earth and the Moon.

Introduction to the Atmosphere:

The atmosphere is a meteorological term, which is a layer of mixed gas that surrounds the earth due to gravity, and is the outermost gasosphere of the earth, surrounding the ocean and land, and the thickness of the atmosphere is about 1000 kilometers or more, but there is no clear boundary.

The Earth's atmosphere is the formation of an atmosphere of thousands of kilometers under the gravitational pull of the earth, when a large amount of gas gathers around the earth. The density of the gas becomes thinner and thinner as the height above the ground increases. Sounding rockets still found a rarefied atmosphere at an altitude of 3,000 kilometres, and it is suggested that the upper limit of the atmosphere may extend to about 6,400 kilometres above the ground.

Scientists estimate that the mass of the atmosphere is about 6,000 trillion tons, almost one millionth of the Earth's total mass. <>

About 1000 km. The atmosphere refers to the atmosphere surrounding the earth, its main components are nitrogen and oxygen, the thickness of the atmosphere that surrounds the earth is more than 1000 kilometers, from the upper limit of the atmosphere to the universe, there is no obvious boundary, it is the process of decreasing the density of the atmosphere and decreasing the number of atmospheric molecules. Not all planets have atmospheres, such as planets like Mercury that are too small to attract atmospheres and form atmospheres.

Troposphere

The troposphere is the lowest layer of the atmosphere and the densest layer of the earth's atmosphere, concentrating about 75% of the air quality in the atmosphere, and almost all of the water vapor and solid impurities. The temperature of the tropospheric atmosphere is near-surface heat, and the higher you go, the lower the air temperature, about every 1 km of rise6, because the surface is the direct heat of the tropospheric atmosphere**.

The global average thickness of the troposphere is about 12 km, while at low latitudes it can reach 17 to 18 km, while at high latitudes it is only 8 to 9 km and at mid-latitudes it is about 12 to 13 km.