Tag Archives: atmosphere

Medusae Fossae formation is likely a deposit from explosive volcanism

[Editor’s note: From a paper by┬áLujendra Ojha and Kevin Lewis recently published in the Journal of Geophysical Research.] The Medusae Fossae Formation is one of the largest sedimentary deposits on Mars. Its origin is uncertain, though several processes including volcanic, … Continue reading

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MARCI weather report, May 28-June 3, 2018

The most prominent weather events last week were two large regional dust storms over the northern hemisphere of Mars. The large arcuate-shaped dust storm, reported the previous week, propagated eastward over the northern mid-latitudes of Utopia Planitia before abating. By … Continue reading

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MARCI weather report, May 21-27, 2018

Shortly after the arrival of the Northern Autumnal Equinox last week, two large arcuate-shaped dust storm fronts swept eastward from Acidalia to Deuteronilus and further eastward towards the plains of Utopia. Looking to the southern highlands, dust lifting activity was … Continue reading

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MARCI weather report, May 14-20, 2018

Last week on Mars, weather patterns were fairly typical for this time of martian year. A large dust storm was observed over Cimmeria and Sirenum at the beginning of the week. In the following sols, the dust lifting quickly abated … Continue reading

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MARCI weather report, May 7-13, 2018

Dust-lifting activity continued at mid-to-high latitudes for both hemispheres this past week. Looking to the northern lowlands, a mixture of dust storms and water-ice clouds propagated eastward, signaling further development of the north polar hood. Large local-scale dust storms occurred … Continue reading

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MARCI weather report, April 23-29, 2018

Weather patterns this past week were very similar to those reported the previous week. A new regional dust storm kicked up in the southern mid-to-low latitudes of Promethei-Cimmeria. It extended northeast over Gusev Crater, the final resting place of the … Continue reading

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MARCI weather report, April 16-22, 2018

A regional dust storm kicked up in the southern mid-to-low latitudes of Promethei-Cimmeria this past week. Dust lofted by the storm was transported eastward as far as western Noachis. Additional local storm activity was observed in Hellas Basin, as well … Continue reading

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Curiosity update: A change of season

Sols 2027-28, April 20, 2018, update by MSL scientist Scott Guzewich: This was a week of transition for Curiosity’s environmental science team. The cloudy season on Mars has ended as we’ve seen a marked decrease in water ice cloud activity … Continue reading

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MARCI weather report, April 9-15, 2018

Dust storm activity continued along the seasonal south polar ice cap edge of Mars this past week. Equatorward of the southern seasonal cap edge, local-scale dust storms were observed over Noachis and Cimmeria. At the beginning of the week, a … Continue reading

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MARCI weather report, April 2-8, 2018

Martian weather remained quite active last week. Several small polar storms developed into a regional dust storm over the northern plains. Local-scale storms were observed along the seasonal south polar cap edge from Sirenum to Cimmeria. Looking to the mid-to-low … Continue reading

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