Tag Archives: atmosphere

MARCI weather report, March 5-11, 2018

There was an uptick in dust storm activity this past week, which is typical for this time of season. The Acidalia storm from last week had dissipated by mid-week. Northern Utopia and areas near the sands of Olympia were sites … Continue reading

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MARCI weather report, Feb 26-March 4, 2018

Towards the end of last week, dust lifting activity was spotted over the plains of northeast Acidalia and northwest Arcadia. Looking to the equatorial latitudes of Mars, the aphelion cloud belt continued to dominate the skies each afternoon. Among these … Continue reading

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MARCI weather report, February 12-18, 2018

At the beginning of the week, the aphelion cloud belt dominated the skies over the tropics of Mars. Condensate water-ice clouds were also spotted further north above Tempe, Alba, Acidalia, and Deuteronilus. Looking to the southern highlands, small short-lived dust … Continue reading

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MARCI weather report, February 5-11, 2018

Last week, martian water-ice clouds occurred along the tropics and over the plains north of Tempe. The plains of Acidalia encountered some dusty weather as dust hazes lingered for a couple sols at the beginning of the week. The southern … Continue reading

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MAVEN: Meteoric metal chemistry in Mars’ atmosphere

When dust particles enter the Mars’ atmosphere, collisions with air molecules cause heating and evaporation, and the continuous injection of metal atoms and ions into Mars’ atmosphere. The MAVEN Imaging Ultraviolet Spectrograph, or IUVS, instrument has detected a layer of … Continue reading

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MARCI weather report, Jan 29-Feb 4, 2018

Widespread water-ice cloud activity continued above many equatorial regions as well as areas north of Tempe Terra. Near the middle of the week, a couple of small short-lived dust storms were observed over northwestern Acidalia Planitia. Meanwhile in the southern … Continue reading

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MARCI weather report, January 22-28, 2018

The prevalence of water-ice clouds was strong across many regions of Mars last week. The aphelion cloud belt continued to rule the skies along the tropics. Poleward of Alba Patera, remainders of a recurring annular (ring-shaped) cloud were visible in … Continue reading

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MARCI weather report, January 15-21, 2018

Last week on Mars, a number of small transient dust storms were spotted over Solis Planum. Looking slightly northwards, the water-ice clouds of the aphelion cloud belt continued to dominate the afternoon skies. The northern plains were at a continued … Continue reading

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Hydrogen escape from atmosphere linked to global dust storms

Some Mars experts are eager and optimistic for a dust storm this year to grow so grand it darkens skies around the entire Red Planet. This biggest type of phenomenon in the environment of modern Mars could be examined as … Continue reading

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How the solar wind interacts with Mars

Mars, without a strong internal dipole magnetic field, is a place where the supersonic solar wind directly contacts the planet’s upper atmosphere. Using a large set of data from the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission, [a paper published … Continue reading

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