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Tag Archives: polar sand dunes
THEMIS: At the north polar cap’s edge
THEMIS Image of the Day, August 7, 2019. Today’s VIS image is located on the edge of the polar cap. The ice is located at the bottom of the frame, with the surrounding plains at the top half. The circular … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, NASA, north polar ice cap, polar sand dunes, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Frosty dunes in Hyperboreae Undae
THEMIS Image of the Day, August 5, 2019. Several dune fields encircle the north polar cap. Hyperboreae Undae is one of them, located near Escorial Crater and Chasma Boreale. This VIS image was taken during the spring season, when the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Chasma Boreale, defrosting, dunes, Escorial Crater, frost, Hyperboreae Undae, Mars Odyssey, NASA, polar sand dunes, sand, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Dunes next to a central peak
The dunes, they are coming for you! These dunes are next to a central peak in a crater. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Acidalia Planitia, Beautiful Mars, central peaks, dunes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, polar sand dunes, University of Arizona
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HiRISE: Pettit Crater wind streak and intracrater dunes
Pettit Crater wind streak and intracrater dunes. Part of the rationale for this observation is to look for dune bedforms that may be related to thermal inertia and particle mobility. This crater was named after Edison Pettit, an American astronomer (1890–1962). … Continue reading
Posted in Reports
Tagged Beautiful Mars, dunes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, Pettit Crater, polar sand dunes, University of Arizona, wind streaks
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HiRISE: Dune transition in high southern latitudes
Sand dune populations on Mars can vary widely with respect to morphology, relief, and activity. One of the most striking examples occurs with the many dune fields of the high Southern latitudes. When we venture south of -60 degrees latitude, … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, polar sand dunes, sand sheets, University of Arizona
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THEMIS: Southern dunes – false color
THEMIS Image of the Day, December 4, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, dunes, Mars Odyssey, NASA, polar sand dunes, south polar ice cap, south polar region, THEMIS, Thermal Emission Imaging System
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Opportunity: Endeavour dunes
Sols 4087 and 4090, July 24 and 27, 2015. Opportunity’s Pancam shot this pair of images (in false color by Holger Isenberg) showing the dune field on the floor of Endeavour Crater at the foot of Marathon Valley. The rover … Continue reading
Posted in Reports
Tagged Cape Tribulation, dunes, Endeavour Crater, Marathon Valley, Mars Exploration Rover, MER, NASA, Opportunity, polar sand dunes
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THEMIS: Proctor Crater dunes
THEMIS Image of the Day, April 28, 2015. Today’s VIS image shows part of the dune field on the floor of Proctor Crater. More THEMIS Images of the Day by geological topic.
Posted in Reports
Tagged Arizona State University, ASU, dunes, Mars Odyssey, NASA, polar sand dunes, Proctor Crater, THEMIS, Thermal Emission Imaging System, wind
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THEMIS: More polar dunes
THEMIS Image of the Day, July 21, 2014. This VIS image shows part of the large dune field called Olympia Undae. There are hills in this region, and the dunes are concentrated in the lower elevations. More THEMIS Images of … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, dunes, Mars Odyssey, NASA, north polar sand sea, Olympia Undae, polar sand dunes, sand dunes, THEMIS, Thermal Emission Imaging System
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THEMIS: Apledon Undae
THEMIS Image of the Day, July 14, 2014. This VIS image shows part of Aspledon Undae, a region of dunes near the north pole. The right side of the image shows hundreds of small, isolated dunes. On the left side … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, dunes, Mars Odyssey, NASA, north polar sand sea, polar sand dunes, THEMIS, Thermal Emission Imaging System
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