Mars' atmosphere?

Question

what is it like? does it have layers of atmosphere like Earth(tropsphere,Mesosphere...)? Does it have weather such as storms and other things? What's the percentage of carbon Dioxide and other things? Please I NEED answers!

Answer 1

First off all Martian atmosphere is so thin that it doesnot have layers like troposhere,mesosphere,stratosphere etc.

Composition of the Martian air is 95% Carbon Dioxide, 3% nitrogen and trace amounts of oxygen and water. The density of the Martian atmosphere is only 1% of Earth.

Winds are created by air being heated near the surface around the surface, then rising and moving towards the poles. This is the same general pattern for winds on Earth. The planet's rotation causes the Coriolis effect which deflects the winds so that they blow around the planet nearly parallel to the equator. Martian winds are usually a gentle breeze, but occasionally they can rise to gale force. This occurs seasonally near the poles. The winds pick up a great deal of dust off the surface and sometimes the entire planet is engulfed in one giant dust storm.

Though there is water crystals in the atmosphere, no rain ever falls on Mars. The atmosphere is too cold and there is too little water in them to produce rain. There is so little water in the atmosphere that if all of it were to fall at once, it would make a layer less than 1/2000th of an inch thick. Despite such little water, fog does form in some valleys and on really cold nights there is frost. Around the poles, there is carbon dioxide snow!

Mars has seasons just like Earth though they last about twice as long because the Martian year is almost twice that of Earth. Mars axial tilt is 25.2 degrees which is also very close to the 23.5 of Earth.

Generally Mars is quite cold with lows that reach -140 C (-220 F) but occasionally there are days that are quite balms reaching 20C (68 F.) Because soil and rock absorb heat from the Sun, the surface would be slightly warmer. Frost that forms during the night would melt and be released as water vapor during the day.

Answer 2

On a slightly related note.

Mars at one stage had a magnetic field, like Earth. At this stage the atmosphere would have been a lot more dense as the magnetic field would have protected it from 'solar wind' (radiation from the sun and other sources in the universe). The magnetic field in Earth is due to the movement of charged partials in the core but mars does not have a molten core any more it is just solid.
At the moment the magnetic field of the earth causes all the EM radiation to enter at the poles of the earth; Arora Borealis.

The magnetic field on earth reverses every so often. This can be seen from the direction in which naturally occurring magnetic materials in the earth are magnetized.

A computer simulation of the Earths core has been made and it shows that we are in for a shift soon; in the next few 100 years. During the shift there would be a period in which the field would not be uniform. This would mean that humans would be subject to a lot more radiation and aurora would be visible all over the planet.

Answer 3

1.thin atmosphere
2.has no ozone layer to protect it from the sun’s lethal rays
3. there is also no oxygen in the air
4. Weather: because Mars is tilted the same way as the Earth has our seasons match considerably. The seasons of Mars however far exceed those on earth in duration and each year on Mars is equivalent to two years on Earth. Spring for instance on earth lasts for ninety three days but on mars it lasts for hundred and seventy one days, similarly all the other seasons Summer, Fall and Winter are nearly double those on Earth.

The minimum temperature of Mars reaches -140º Celsius but maximum temperatures are rarely more than 20º Celsius and average temperatures are -63º Celsius. This is due to Mars thin atmosphere and the inability of the planet to trap heat. Another peculiarity of Mars is its immense and gigantic dust storms.

5.The minimum surface temperature on Mars is around −140° C (133 K). The maximum temperature on Mars is 20° C (293 K). The mean temperature of Mars is −63° C (210 K).

Answer 4

Mars has a very thin atmosphere because the mass of the planet is not sufficient enough to maintain or hold onto an atmosphere like we have on Earth.

The atmospheric composition is 95.3 percent carbon dioxide, 2.7 percent nitrogen, 1.6 percent argon, and 0.2 percent oxygen. Because of this thin atmosphere, one of the many reasons the majority of life forms here on our planet could not survive is because of the radiation. Our atmosphere protects us from radiation, whereas the atmosphere of Mars could not.

Furthermore, there is little oxygen present, another reason why we could not survive. There are numerous propositions for terraforming Mars (making it suitable for life as we know it), but since that is not your question I won't go into them. You can find more information on terraforming, along with characteristics of Mars on the websites I have listed below.