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Tag Archives: eolian processes
HiRISE: Martian haze
A massive, planet-encircling dust storm occurred on Mars during the summer of 2018, resulting in many images where the surface could not be seen due to the dust. This is a problem for HiRISE but also gives us an exciting … Continue reading
Posted in Reports
Tagged atmosphere, dust storms, eolian processes, global dust storms, haze, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, wind
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HiRISE: Channels and ripples along crater walls
Channels and ripples along crater walls. From the science rationale: “We would like a HiRISE image of the selected area to look for evidence of both fluvial and aeolian processes on the crater wall. Specifically, we are looking for channels … Continue reading
Posted in Reports
Tagged Beautiful Mars, craters, eolian processes, fluvial processes, gullies, High Resolution Imaging Science Experiment, HiRISE, Isidis Planitia, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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THEMIS: Wind-driven blowouts in Eumenides Dorsum
THEMIS Image of the Day, August 17, 2018. Eumenides Dorsum is a large linear rise located in southern Amazonis Planitia. Erosion by wind action is prevalent in this region. The horseshoe shaped depressions, called blowouts, indicate the major wind direction … Continue reading
Posted in Reports
Tagged Amazonis Planitia, Arizona State University, ASU, eolian processes, Eumenides Dorsum, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion
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HiRISE: Inverted channel on elevated terrain
An inverted channel on elevated terrain. Interesting fluvial processes that might help improve our understanding of the deposits in the Medusae Fossae Formation. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Beautiful Mars, eolian processes, fluvial channels, fluvial deposits, fluvial processes, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, Medusae Fossae Formation, MRO, NASA, University of Arizona, wind erosion, yardangs
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Cross-bed geometry in upper Mt. Sharp
Planetary Geomorphology Image of the Month, August 1, 2018: One of the most environmentally diagnostic features of sedimentary rocks is cross-bedding, which occurs when sediment is transported by wind, water, or volcanic processes, resulting in horizontal strata composed of inclined … Continue reading
Posted in Reports
Tagged Aeolis Mons, cross-bedding, eolian processes, Gale Crater, Mount Sharp, sedimentary deposits, sediments
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HiRISE: Wrinkles in rock
The bedrock in this region of Arabia Terra has been worn away by the wind, revealing their internal structure and geologic history. The wavy lines are individual layers of sand and dust, originally laid down as the bedrock was forming. … Continue reading
Posted in Reports
Tagged Arabia Terra, bedrock, eolian processes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, wind erosion
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HiRISE: Horse playing the flute
Horse playing the flute. Maybe you can see a horse playing a flute here, but really this is a portion of the floor of Eberswalde Crater, at one time candidate landing site for the Mars Science Laboratory. The light-toned bedrock … Continue reading
Posted in Reports
Tagged Beautiful Mars, bedrock, Eberswalde Crater, eolian processes, High Resolution Imaging Science Experiment, HiRISE, lacustrine sediments, lake bed sediments, landing sites, Mars Reconnaissance Orbiter, MRO, NASA, sand, sand dunes, University of Arizona
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Turbulent winds excavated sediments from Gale Crater, leaving offset mound
By seeing which way the wind blows, a University of Texas at Dallas fluid dynamics expert has helped propose a solution to a Martian mountain mystery. Dr. William Anderson, an assistant professor of mechanical engineering in the Erik Jonsson School … Continue reading
Posted in Reports
Tagged Aeolis Mons, eolian processes, Gale Crater, Henry Crater, Mount Sharp
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HiRISE: A highly disrupted crater
This 2.5-kilometer diameter crater has been significantly altered from the usual bowl-shaped appearance we associate with craters. Material has covered significant portions of the ejecta and filled in the crater. This fill material has since been subject to erosion—like boulders … Continue reading
Posted in Reports
Tagged Elysium Planitia, eolian processes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, volcanics, wind erosion
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