Tag Archives: haze

MARCI weather report, November 6-12, 2017

Dust-lifting near the north polar ice cap led to murky conditions over parts of Acidalia and northern Utopia. The dust that was pushed southward over Acidalia, formed a stationary dust cloud — likely the result of an eddy. Looking to … Continue reading

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MARCI weather report, Oct 30-Nov 5, 2017

Last week on Mars, a slight up-tick in dust-lifting occurred along the north polar ice cap edge. As storm activity northeast of Tempe pushed dust southward over the plains of Acidalia, a dust storm also swept over the sands of … Continue reading

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MARCI weather report, October 23-29, 2017

This past week dust-lifting near the edge of the perennial north polar ice cap transported dust to the plains of Arcadia and Acidalia. Meanwhile, an expanse of water-ice clouds, known as the aphelion cloud-belt continued to dominate the skies of … Continue reading

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MARCI weather report, October 16-22, 2017

Dust-lifting activity near the north polar ice cap swept diffuse dust clouds southward to the plains of Acidalia this past week. Looking further south, short-lived local-scale dust storms were spotted northwest of Elysium Mons. In the mid-latitudes, water-ice orographic clouds … Continue reading

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MARCI weather report, October 9-15, 2017

The dominant weather feature last week was the aphelion equatorial condensate (water-ice) cloud belt. Predominately a northern hemisphere feature, it does extend a distance into the southern tropics. In addition, orographic condensate clouds were observed over all the major shield … Continue reading

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Trace Gas Orbiter: Clouds over lava flows

Diffuse, water-ice clouds, a hazy sky and a light breeze. Such might have read a weather forecast for the Tharsis volcanic region on Mars on 22 November 2016, when this image was taken by the ExoMars Trace Gas Orbiter. Clouds, … Continue reading

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MARCI weather report, September 18-24, 2017

Dust-lifting activity was sparse this past week on Mars. In the first half of the week, small dust storm fronts and hazes were spotted over northern Acidalia — near the seasonal north polar ice cap edge. Looking further south, equatorial … Continue reading

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MARCI weather report, September 11-17, 2017

Weather conditions were relatively unchanged from last week. Tiny transient dust storms were spotted northwest of Elysium Mons and southwest of Syrtis near the middle of the week. During that time, frontal dust storms streamed off the seasonal cap over … Continue reading

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MARCI weather report, September 4-10, 2017

During the past week, the seasonal north polar cap edge had retreated to about 67 degrees north latitude. Water vapor released from the north polar cap was transported southward by the general circulation to the northern tropics, where it formed … Continue reading

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MARCI weather report, Aug 28-Sept 3, 2017

There continued to be sporadic dust storm activity over many regions of Mars this past week. The seasonal north polar ice cap had retreated to ~70°N latitude. Moving our attention to the southern hemisphere, small short-lived dust storms were spotted … Continue reading

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