Tag Archives: atmosphere

North polar storm activity was reduced this week, with occasional frontal storms in Acidalia and local dust-raising over the north polar residual cap and surrounding dune fields. In the south, local storms were observed in Sirenum, Aonia, Solis, Noachis, and … Continue reading →

Regional scale dust lifting was observed in both hemispheres this week. In the north, storms continued to occur at mid- to polar latitudes for much of the week with occasional frontal storms observed north of Tempe. In the south persistent … Continue reading →

This week several storms in the northern plains merged into a regional storm that spread across most of the northern mid-latitudes and persisted for several days throughout the week. Dust from the regional storm was observed from latitudes over the … Continue reading →

The seasonal south polar cap was present up to ~50 degrees south latitude and numerous dust-lifting events were observed to nucleate at the cap edge. Storms occurred across most the southern mid-latitudes in Sirenum, west of Argyre, Noachis, west of … Continue reading →

The regional storm in Promethei, noted in last week’s report, had abated. A second storm developed early in week in Hesperia and moved north across the equator into Isidis in the northern hemisphere. This storm was smaller than the previous … Continue reading →

This past week, water ice clouds reaching altitudes of up to 30 kilometers, continued to be a prominent afternoon feature at tropical latitudes in both hemispheres. Also of note was the rapid northward expansion of the seasonal polar cap edge … Continue reading →

Dust-raising activity was frequently observed this week in the mid-to-high latitudes of both hemispheres. In the north, storms occurred over and off of the residual north polar cap in Arcadia, Acidalia, and northern Utopia. In the south, local dust storms … Continue reading →