Tag Archives: sand dunes

HiRISE: The Case of the Martian Boulder Piles

Posted on March 8, 2018 by rburnham

This image was originally meant to track the movement of sand dunes near the North Pole of Mars, but what’s on the ground in between the dunes is just as interesting! The ground has parallel dark and light stripes from … Continue reading →

Posted in Reports | Tagged frost heaves, frost polygons, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, periglacial processes, periglacial terrain, polygonal terrain, sand dunes, University of Arizona | Comments Off

THEMIS: Dunes don’t climb hills (very far)

Posted on March 8, 2018 by rburnham

THEMIS Image of the Day, March 8, 2018. This VIS image of Olympia Undae was collected during north polar spring. The crests of the dunes and other surfaces are light colored, indicative of a frost covering. At the top right … Continue reading →

Posted in Reports | Tagged Abolos Undae, Arizona State University, ASU, barchan dunes, CO2 frost, defrosting, dunes, frost, Jojutla Crater, Mars Odyssey, NASA, north polar sand sea, Olympia Undae, sand dunes, Siton Undae, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, transverse dunes | Comments Off

THEMIS: Defrosting dunes in Olympia Undae

Posted on March 7, 2018 by rburnham

THEMIS Image of the Day, March 7, 2018. This VIS image of Olympia Undae was collected early in north polar spring. The crests of the dunes are light colored, indicative of a frost covering. As the season changes into summertime, … Continue reading →

Posted in Reports | Tagged Abolos Undae, Arizona State University, ASU, barchan dunes, CO2 frost, defrosting, dunes, frost, Mars Odyssey, NASA, north polar sand sea, Olympia Undae, sand dunes, Siton Undae, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, transverse dunes | Comments Off

THEMIS: Patterns in the sands of Olympia Undae

Posted on March 6, 2018 by rburnham

THEMIS Image of the Day, March 6, 2018. This VIS image of Olympia Undae was collected early in north polar spring. The crests of the dunes are light colored, indicative of a frost covering. As the season changes into summertime, … Continue reading →

Posted in Reports | Tagged Abolos Undae, Arizona State University, ASU, barchan dunes, dunes, Mars Odyssey, NASA, north polar sand sea, Olympia Undae, sand dunes, Siton Undae, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, transverse dunes | Comments Off

THEMIS: Waves in the north polar sand sea

Posted on March 5, 2018 by rburnham

THEMIS Image of the Day, March 5, 2018. Olympia Undae is a vast dune field in the north polar region of Mars. It consists of a broad sand sea or erg that partly rings the north polar cap from about … Continue reading →

THEMIS: Colliding landslides in Ius Chasma

Posted on February 28, 2018 by rburnham

THEMIS Image of the Day, February 28, 2018. This VIS image shows the eastern end of Ius Chasma. The southern canyon wall is at the bottom of the image, with dark sand and sand dunes. The presence of mobile sand … Continue reading →

Posted in Reports | Tagged Arizona State University, ASU, canyons, dunes, Geryon Montes, interior layered deposits, Ius Chasma, landslides, layers, Mars Odyssey, mass wasting, NASA, sand dunes, tectonics, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris | Comments Off

THEMIS: Eroding landslide in Ius Chasma

Posted on February 27, 2018 by rburnham

THEMIS Image of the Day, February 27, 2018. This VIS image shows part of the eastern end of Ius Chasma. Geryon Montes are located in the bottom half of the image. Between the montes and the southern wall face is … Continue reading →

THEMIS: Dunes in Ius Chasma

Posted on February 23, 2018 by rburnham

THEMIS Image of the Day, February 23, 2018. Continuing eastward thru central Ius Chasma, this image shows a section of chasma that is not dominated by landslide deposits. Geryon Montes, in the upper half of the image, has several visible … Continue reading →

Posted in Reports | Tagged Arizona State University, ASU, canyons, Geryon Montes, interior layered deposits, Ius Chasma, landslides, layers, Mars Odyssey, mass wasting, NASA, sand dunes, tectonics, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris | Comments Off

HiRISE: Holden Crater dunes

Posted on February 5, 2018 by rburnham

Holden Crater dunes. 260 km above the surface. Black and white is 5 km across, enhanced color is less than 1 km. Beautiful Mars series.

Posted in Reports | Tagged Beautiful Mars, dunes, High Resolution Imaging Science Experiment, HiRISE, Holden Crater, Mars Reconnaissance Orbiter, MRO, NASA, sand dunes, University of Arizona | Comments Off

THEMIS: Kaiser Crater dunes in false color

Posted on February 2, 2018 by rburnham

THEMIS Image of the Day, February 2, 2018. This is a false color image of Kaiser Crater. In this combination of filters “blue” typically means basaltic sand. This VIS image crosses 3/4 of the crater and demonstrates how extensive the … Continue reading →

Posted in Reports | Tagged Arizona State University, ASU, dunes, false color, Kaiser Crater, Mars Odyssey, NASA, Noachis Terra, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System | Comments Off

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