What is the average temperature of Mars?
Mars is farther from the sun than the earth, so the surface temperature is lower than the earth. Moreover, the Martian atmosphere is thin and dry, with poor heat insulation performance, and the temperature difference between day and night is about 100℃. Near the equator, the maximum temperature can reach 20℃ during the day and suddenly drop to about -80℃ at night. The temperature at the poles of Mars is even lower, with the lowest temperature reaching-139℃.
The latest achievement of American Mars Pathfinder 1997 reports that the Pathfinder has measured the atmosphere all day, in which the daytime temperature is-13.3 degrees, the night temperature is -76. 1 degrees, and the day and night temperature reaches 90 degrees. Viking was also measured at 1976. It's cold all year round. In addition, the weather on Mars is changeable and extremely unstable, and the air pressure and temperature change rapidly, often changing in a few seconds 17 ~22 degrees.
Edited on 20 16- 12-20.
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What's the temperature on Mars?
The average temperature on Mars is about 2 18K (Kelvin, degree-day, that is, from absolute zero -273. 15℃(-55℃, -67℉), but it is 140k(- 133℃) away from winter. Although Mars is much smaller than the earth, its surface area is equivalent to the land area of the earth's surface. Compared with the earth, the geological activities of Mars are relatively inactive. Most of the surface landforms were formed in ancient times, with dense craters, volcanoes and canyons, including Mount Olympus, the highest peak in the solar system, and Mariner Canyon, the largest canyon. Another unique topographical feature is the obvious difference between the northern and southern hemispheres: the southern part is an ancient highland covered with craters, while the northern part is a younger plain. Mars is basically a desert planet, its surface is covered with sand dunes and gravel, and there is no stable liquid water body (2065438+September 28th, 2005, NASA announced that there is a small amount of water on Mars. Extended data:
Environment of Mars: 1. The atmospheric density of Mars is only about 1% of that of the earth, which is very dry and the temperature is very low. The average surface temperature is -55℃, and water and carbon dioxide are easy to freeze. In the early days of Mars, it was very similar to Earth. Like the earth, almost all the carbon dioxide on Mars has been converted into carbonaceous rocks. 2. Water In March 2007, NASA claimed that if all the ice on the Antarctic crown melted, it might cover the whole earth. It is inferred that a larger amount of water is frozen in the thick frozen layer and can only be released during volcanic activity. The biggest time in history was when the Sailor Valley was formed, and a large amount of water was released, which caused floods to wash out many valley landforms and flow into the Chris Plain. 3. 178 1 the change of the four seasons, William Herschel, a famous astronomer in the history of astronomy, inferred that the rotation axis of Mars is also inclined according to the way the marks on Mars move with the rotation of Mars, and the angle of inclination is almost the same as the rotation axis of the earth. In this case, Mars should be like the earth, with winter to spring and cold to summer. Baidu Encyclopedia-Mars
20 likes 8,017 to browse 20 19-04-25.
The temperature of Mars
The average temperature on Mars is about 2 18K (Kelvin, degree-day, that is, from absolute zero -273. 15℃(-55℃, -67℉), but it is 140k(- 133℃) away from winter. Mars is basically a desert planet, its surface is covered with sand dunes and gravel, and there is no stable liquid water body (2065438+September 28th, 2005, NASA announced that there is a small amount of water on Mars. According to Agence France-Presse reported on July 25th, 20 18, researchers from the European Space Agency (ESA) said that the first liquid groundwater lake was discovered on Mars. The atmosphere dominated by carbon dioxide is thin and cold, and dust is suspended in it, and dust storms often occur every year. The polar caps composed of water ice and dry ice at the poles of Mars will fluctuate with the seasons. Compared with the earth, the geological activities of Mars are relatively inactive. Most of the surface landforms were formed in ancient times, with dense craters, volcanoes and canyons, including Mount Olympus, the highest peak in the solar system, and Mariner Canyon, the largest canyon. Another unique topographical feature is the obvious difference between the northern and southern hemispheres: the southern part is an ancient highland covered with craters, while the northern part is a younger plain. Extended data:
Mars environment: The atmospheric density of Mars is only about 1% of that of the Earth, which is very dry and low in temperature. The average surface temperature is -55℃, and water and carbon dioxide are easy to freeze. In the early days of Mars, it was very similar to Earth. Like the earth, almost all the carbon dioxide on Mars has been converted into carbonaceous rocks. However, due to the lack of plate movement of the earth, Mars can't recycle carbon dioxide into its atmosphere again, so it can't produce significant greenhouse effect. Therefore, even if it is pulled to the same distance from the sun as the earth, the temperature on the surface of Mars is still much colder than the earth. The thin atmosphere of Mars is mainly composed of carbon dioxide (95.3%), nitrogen (2.7%), argon (1.6%), trace oxygen (0. 15%) and water vapor (0.03%). The average atmospheric pressure on the surface of Mars is only about 7 mbar (lower than 65,438+0% on Earth), but it varies with height, reaching 9 mbar in the deepest part of the basin and only 65,438+0 mbar at the top of Olympus. But it is enough to support hurricanes and big storms that occasionally sweep the whole earth. Although the thin atmosphere of Mars will also cause greenhouse effect, those that can only raise the surface temperature by 5℃ are much less than Venus and the Earth as we know them. The poles of Mars are permanently covered with solid carbon dioxide (dry ice). The structure of this ice sheet is layered, which is formed by the alternating overlapping of ice layers and the change of carbon dioxide layers. In the summer in the north, carbon dioxide is completely sublimated, and the rest is the ice water layer. Because the carbon dioxide in the south has never completely disappeared, we can't know whether there is ice under the ice in the south. The reason for this phenomenon is unknown, but it may be that the long-term change of the angle between the equatorial plane of Mars and its orbit leads to climate change. Maybe there is water deeper under the surface of Mars. This change in polar cover caused by seasonal changes has changed the pressure on Mars by about 25%. (Viking survey). However, the observation by Hubble telescope shows that the environment of Viking at that time was not typical. The atmosphere of Mars seems colder and drier than that detected by Viking. References:
Baidu Encyclopedia-Mars
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What is the average temperature on the surface of Mars?
The average temperature on Mars is about 2 18K (Kelvin, degree-day, that is, the degree of Celsius starting from absolute zero -273. 16℃(-55℃, -67℉)).
4 like 98 browse 2020-03-03
What is the "average temperature" in Hainan?
1, and the annual average temperature is 26.5 degrees Celsius. 2. Hainan Island is located in the Hainan Island area south of 10 degrees north latitude. The annual average temperature is above 25℃, the annual accumulated temperature reaches 9000℃, the temperature changes little in the four seasons, and the rainfall is evenly distributed. 3, 65438+ 10 is winter, and the average temperature is between16 and 20 degrees Celsius. In late summer, the average temperature is between 28 and 35 degrees Celsius. 4. The administrative area of Hainan Province includes Hainan Island, Xisha Islands, zhongsha islands, Nansha Islands and their sea areas, and it is the largest province in China. The province's total land area (mainly including Hainan Island, Xisha, Zhongsha and Nansha Islands) is 35,400 square kilometers (including Hainan Island's land area of 33,900 square kilometers), and the sea area is about 2 million square kilometers.
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The average temperature of Mars is 60 degrees, because there is not enough heat in the Martian atmosphere.
The atmosphere of Mars is similar to that of the Earth, and it is also shrouded around Mars. The main component of the Martian atmosphere is carbon dioxide, followed by nitrogen and argon, and a small amount of oxygen and water vapor. Nitrogen exists in both the Martian atmosphere and the Earth's atmosphere, which is the biggest similarity between Mars and the Earth. The atmosphere of Mars is very thin, and it is mainly composed of trace carbon dioxide (95.3%) plus nitrogen (2.7%), argon (1.6%), trace oxygen (0. 15%) and water (0.03%). Although the thin atmosphere of Mars will still cause the greenhouse effect, it is only enough to raise the surface temperature by 5 K, which is much less than that seen on Venus and the Earth. Atmospheric pressure on Mars The average atmospheric pressure on the surface of Mars is only about 7 mbar (less than 65,438+0% of the earth's atmosphere), but Mars has a drastic pressure change from the deepest basin (about 9 mbar) to the top of Mount Olympus (about 65,438+0 mbar). However, its atmospheric concentration is still enough to support the whole earth into strong winds and huge sandstorms for several months.
1 Like 29 Browse 2020-02-20
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