Tag Archives: sand dunes

HiRISE: Crater floor with dunes and mounds

Posted on September 1, 2016 by rburnham

Uncomplicated. Beautiful Mars series.

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HiRISE: Landforms north of Allegheny Vallis

Posted on August 31, 2016 by rburnham

Landforms in a crater north of Allegheny Vallis. Beautiful Mars series.

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HiRISE: Tracking dune changes in Chasma Boreale

Posted on August 23, 2016 by rburnham

Tracking dune changes in Chasma Boreale. Beautiful Mars series.

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Large aeolian ripples on Mars

Posted on August 1, 2016 by rburnham

Planetary Geomorphology Image of the Month, July 30, 2016: Ryan C. Ewing (Texas A&M University).  Ripples cover the surfaces of sand dunes on Earth and Mars. On Earth, ripples formed in typical aeolian sand (e.g., 0.1 and 0.3 mm) range … Continue reading →

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THEMIS: Dunes in Juventae Chasma – false color

Posted on July 21, 2016 by rburnham

THEMIS Image of the Day, July 21, 2016. Today’s false color image shows part of Juventae Chasma. Dunes are visible on the floor of the chasma. The THEMIS VIS camera contains 5 filters. The data from different filters can be … Continue reading →

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HiRISE: Russell Crater dunes

Posted on July 8, 2016 by rburnham

O, Russell Crater dunes! Beautiful Mars series.

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HiRISE: Dune-ice interactions in Olympia Undae

Posted on July 6, 2016 by rburnham

Dune-ice interactions in Olympia Undae. Beautiful Mars series.

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THEMIS: North polar dunes

Posted on July 6, 2016 by rburnham

THEMIS Image of the Day, July 6, 2016. Multiple dune fields surround the north polar cap. This unnamed region of dunes is located between Olympia Undae (the largest dune field) and Abalos Undae. This image was acquired during northern summer, … Continue reading →

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HiRISE: Glowing gullies in Kaiser Crater dunes

Posted on July 1, 2016 by rburnham

The giant sand dunes in Kaiser Crater experience gully erosion of the steep slip faces every year in late winter as the sun warms these slopes and seasonal carbon dioxide frost sublimates (meaning it changes from a solid to gas). … Continue reading →

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HiRISE: Martian Morse code

Posted on June 30, 2016 by rburnham

These dark dunes are influenced by local topography. The shape and orientation of dunes can usually tell us about wind direction, but in this image, the dune-forms are very complex, so it’s difficult to know the wind direction. However, a … Continue reading →

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