Mars is best known for its dust storms, which can cover the entire planet at its maximum. But did you know that there will be snowstorms on Mars? In extremely cold winters, a lot of snow will fall on the Martian Arctic. Usually Mars' polar ice caps are similar to those on Earth, covered with thick ice and snow. But the ice caps on Mars are slightly different, and are covered by huge dry ice in winter. The temperature in winter can be reduced to -128 degrees, which causes carbon dioxide to condense.
Dr. Paul Hartogh of the Max Planck Institute explained: "There are two different sources of seasonal icing on Mars. One is that carbon dioxide in the atmosphere condenses directly on the surface, and the other is carbon dioxide in the atmosphere." At such low temperatures, fine ice crystals condensed by carbon dioxide form clouds. Hartogh added: "These clouds can be found in all atmospheres north of 70 degrees north latitude. Then these ice crystals will form snowflakes and land on the ground." However, snowflakes condensed by normal water may also appear. The Phoenix lander, which landed near the north pole of Mars in 2008, made the first measurement of surface water ice crystals.
The simulation experiments in the new study were set up on the basis of the Earth ’s climate model according to the conditions of Mars. According to Dr. Alexander Medvedev of the Max Planck Institute, the results of the study can help to accurately predict snowstorms on Mars. Everyone knows that the weather forecast on the earth can only span 5 to 7 days at most, and it is impossible to predict whether it will snow somewhere on the earth 20 or 40 days in advance. This is different on Mars, and simulation experiments show that snowfall in certain parts of Mars can achieve long-term prediction. Dr. Hartogh added that this very useful information can enable roamers to plan their routes in advance and avoid severe snowstorms. Whether it is a dust storm or a snowstorm, these Martian storms are things that need to be avoided as much as possible.
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