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Tag Archives: south polar layered deposits
Islands of ice on Mars (and Pluto)
[Editor’s note: From a paper by Michael Sori and three co-authors recently published in the Journal of Geophysical Research.] Islands of ice on Mars and Pluto • Deposits in 31 craters in the south polar region of Mars likely represent … Continue reading
Orbital changes drive deposition of south polar layered deposits
[Editor’s note: From a paper by Patricio Becerra and seven co-authors recently published in Geophysical Research Letters.] Timescales of the Climate Record in the South Polar Ice Cap of Mars • Patterns in the stratigraphy of Mars’ south polar ice … Continue reading
Posted in Reports
Tagged climate change, climate cycles, north polar ice cap, north polar layered deposits, orbital oscillations, south polar ice cap, south polar layered deposits
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THEMIS: South polar layers
THEMIS Image of the Day, June 14, 2019. This VIS image shows part of the south polar cap. The numerous layers that comprise the polar cap are readily visible. The cap was built up over millions of years of deposition … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, carbon dioxide ice, dust, ice, Mars Odyssey, NASA, south polar ice cap, south polar layered deposits, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Frost-free southern polar cap features
THEMIS Image of the Day, June 6, 2019. This VIS image shows part of the south polar cap. The dark bands are troughs. The multiple layers of dust and ice that comprise the polar cap are visible in the trough … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, NASA, south polar ice cap, south polar layered deposits, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: South polar cap at summer’s end
THEMIS Image of the Day, May 3, 2019. This VIS image shows part of the south polar cap. The cap is comprised of layers of ice and dust deposited over millions of years. This image was collected at the end … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, NASA, south polar ice cap, south polar layered deposits, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: South polar outliers
THEMIS Image of the Day, April 26, 2019. This VIS image is located near the south polar cap and exhibits the same layering of ice and dust. Outliers are regions that were once part of a larger regional feature but … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, layered deposits, Mars Odyssey, NASA, polar layered deposits, south polar layered deposits, south polar region, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Layers in Cavi Angusti
THEMIS Image of the Day, April 25, 2019. Cavi Angusti is located near the south polar cap and consists of large irregular steep-sided depressions termed cavi. Layering is visible within the large cavi at the top of the image. Explore … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Cavi Angusti, ice-rich mantling, layers, Mars Odyssey, NASA, south polar layered deposits, south polar region, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: A crater on the south polar layered deposits
This image is part of a campaign to image potential impact craters in the south polar layered deposits (ice cap). This feature looks like a strong candidate for an impact crater because it is very circular are still has a … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, impact craters, Mars Reconnaissance Orbiter, MRO, NASA, south polar layered deposits, University of Arizona
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THEMIS: Eroded layers in the south polar ice cap
THEMIS Image of the Day, March 21, 2019. This VIS image shows layering in the south polar cap. Such layers are laid down by the seasonal changes and interweave dust and ice. Then they are eroded by winds and seasonal … Continue reading
Posted in Reports
Tagged climate change, climate cycles, south polar ice cap, south polar layered deposits
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THEMIS: Wood-grain patterns in ice and dust
THEMIS Image of the Day, March 20, 2019. This VIS image shows layering in the south polar cap. The layers are formed over thousands of years of seasonal change, reflecting ice and dust surface deposition. Where the layers appear close … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, climate change, Mars Odyssey, NASA, south polar ice cap, south polar layered deposits, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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