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Tag Archives: katabatic winds
THEMIS: Polar winds streaming off the ice cap
THEMIS Image of the Day, April 5, 2018. This VIS image shows ‘streamers’ of clouds created by katabatic winds at the north polar cap. Katabatic winds are created by cold air sinking at the pole and then speeding along the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, clouds, katabatic winds, Mars Odyssey, NASA, north polar ice cap, polar troughs, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Dust devil tracks
THEMIS Image of the Day, May 18, 2015. Today’s VIS image shows dust devil tracks in Noachis Terra. The dark tracks show where the whirlwind was in contact with the surface and removed dust to expose the darker rocky surface. … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, dust, dust devil tracks, dust devils, katabatic winds, Mars Odyssey, NASA, Noachis Terra, THEMIS, Thermal Emission Imaging System
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Spiral troughs in Mars polar caps are born in ‘cyclic steps’
Both Martian polar caps have deep spiral troughs that slice into them for dozens or hundreds of kilometers, but their origin and development has been much debated by scientists. New work by a team of researchers led by Isaac Smith … Continue reading
Posted in Reports
Tagged atmosphere, cyclic steps, ice, katabatic jump, katabatic winds, Mars Reconnaissance Orbiter, north polar ice cap, polar caps, polar regions, polar troughs, Shallow Radar, SHARAD, south polar ice cap, sublimation, water, water vapor
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Gale’s winds sculpted the Mt. Sharp mound as they built it
The major reason for sending the Mars Science Laboratory rover Curiosity to Gale Crater is the five-kilometer (three-mile) high layered mound, dubbed Mt. Sharp, that looms at the crater’s center. The lowest layers have been altered by water
Posted in Reports
Tagged Aeolis Mons, atmosphere, climate change, Curiosity, dust, eolian, Gale Crater, katabatic winds, LPSC 2013, Mars Science Laboratory, Mount Sharp, wind, wind erosion
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Ice cap winds spread polar gypsum
The north polar cap of Mars is surrounded by a vast dune field, about as large as Earth’s Kalahari Desert, that contains extensive deposits of gypsum. The gypsum’s origin has been debated since the mineral was discovered in 2005, yet … Continue reading
Posted in Reports
Tagged basal unit, climate change, CRISM, dunes, dust, gypsum, ice cap, katabatic winds, north polar ice cap, OMEGA, polar layered deposits, wind
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