Timescales of the Climate Record in the South Polar Ice Cap of Mars
The South Polar Layered Deposits (SPLD) are the largest water ice reservoirs on Mars. Their accumulation is believed to result from climate oscillations that drive the movement of ice and dust on the surface. The High‐Resolution Imaging Science Experiment and the Colour and Stereo Surface Imaging Sy...
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ftunivbern:oai:boris.unibe.ch:132767 2023-08-20T04:07:10+02:00 Timescales of the Climate Record in the South Polar Ice Cap of Mars Becerra Valdes, Patricio Sori, Michael M. Thomas, Nicolas Pommerol, Antoine Simioni, Emanuele Sutton, Sarah S. Tulyakov, Stepan Cremonese, Gabriele 2019 application/pdf https://boris.unibe.ch/132767/1/Becerra_et_al-2019-Geophysical_Research_Letters.pdf https://boris.unibe.ch/132767/ eng eng American Geophysical Union https://boris.unibe.ch/132767/ info:eu-repo/semantics/openAccess Becerra Valdes, Patricio; Sori, Michael M.; Thomas, Nicolas; Pommerol, Antoine; Simioni, Emanuele; Sutton, Sarah S.; Tulyakov, Stepan; Cremonese, Gabriele (2019). Timescales of the Climate Record in the South Polar Ice Cap of Mars. Geophysical Research Letters, 46(13), pp. 7268-7277. American Geophysical Union 10.1029/2019gl083588 <http://dx.doi.org/10.1029/2019gl083588> 520 Astronomy 620 Engineering info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1029/2019gl083588 2023-07-31T21:53:31Z The South Polar Layered Deposits (SPLD) are the largest water ice reservoirs on Mars. Their accumulation is believed to result from climate oscillations that drive the movement of ice and dust on the surface. The High‐Resolution Imaging Science Experiment and the Colour and Stereo Surface Imaging System have imaged exposures of its internal structure in troughs and marginal scarps. Here we use the stereo imaging products of these instruments to extract stratigraphic profiles representative of various locations throughout the SPLD. Through wavelet and series‐matching analyses of these profiles, we reveal periodicities in the stratigraphy that correlate to the orbital oscillations that drive climate change on Mars and that have been observed to force the accumulation of the north polar cap. We infer that the water ice and dust of the SPLD were deposited at variable rates of 0.13–0.39 mm/year, taking a minimum of 10–30 Myr to accumulate. Article in Journal/Newspaper Ice cap BORIS (Bern Open Repository and Information System, University of Bern) Geophysical Research Letters 46 13 7268 7277 |
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BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
language |
English |
topic |
520 Astronomy 620 Engineering |
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520 Astronomy 620 Engineering Becerra Valdes, Patricio Sori, Michael M. Thomas, Nicolas Pommerol, Antoine Simioni, Emanuele Sutton, Sarah S. Tulyakov, Stepan Cremonese, Gabriele Timescales of the Climate Record in the South Polar Ice Cap of Mars |
topic_facet |
520 Astronomy 620 Engineering |
description |
The South Polar Layered Deposits (SPLD) are the largest water ice reservoirs on Mars. Their accumulation is believed to result from climate oscillations that drive the movement of ice and dust on the surface. The High‐Resolution Imaging Science Experiment and the Colour and Stereo Surface Imaging System have imaged exposures of its internal structure in troughs and marginal scarps. Here we use the stereo imaging products of these instruments to extract stratigraphic profiles representative of various locations throughout the SPLD. Through wavelet and series‐matching analyses of these profiles, we reveal periodicities in the stratigraphy that correlate to the orbital oscillations that drive climate change on Mars and that have been observed to force the accumulation of the north polar cap. We infer that the water ice and dust of the SPLD were deposited at variable rates of 0.13–0.39 mm/year, taking a minimum of 10–30 Myr to accumulate. |
format |
Article in Journal/Newspaper |
author |
Becerra Valdes, Patricio Sori, Michael M. Thomas, Nicolas Pommerol, Antoine Simioni, Emanuele Sutton, Sarah S. Tulyakov, Stepan Cremonese, Gabriele |
author_facet |
Becerra Valdes, Patricio Sori, Michael M. Thomas, Nicolas Pommerol, Antoine Simioni, Emanuele Sutton, Sarah S. Tulyakov, Stepan Cremonese, Gabriele |
author_sort |
Becerra Valdes, Patricio |
title |
Timescales of the Climate Record in the South Polar Ice Cap of Mars |
title_short |
Timescales of the Climate Record in the South Polar Ice Cap of Mars |
title_full |
Timescales of the Climate Record in the South Polar Ice Cap of Mars |
title_fullStr |
Timescales of the Climate Record in the South Polar Ice Cap of Mars |
title_full_unstemmed |
Timescales of the Climate Record in the South Polar Ice Cap of Mars |
title_sort |
timescales of the climate record in the south polar ice cap of mars |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
https://boris.unibe.ch/132767/1/Becerra_et_al-2019-Geophysical_Research_Letters.pdf https://boris.unibe.ch/132767/ |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
Becerra Valdes, Patricio; Sori, Michael M.; Thomas, Nicolas; Pommerol, Antoine; Simioni, Emanuele; Sutton, Sarah S.; Tulyakov, Stepan; Cremonese, Gabriele (2019). Timescales of the Climate Record in the South Polar Ice Cap of Mars. Geophysical Research Letters, 46(13), pp. 7268-7277. American Geophysical Union 10.1029/2019gl083588 <http://dx.doi.org/10.1029/2019gl083588> |
op_relation |
https://boris.unibe.ch/132767/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2019gl083588 |
container_title |
Geophysical Research Letters |
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46 |
container_issue |
13 |
container_start_page |
7268 |
op_container_end_page |
7277 |
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1774718620540076032 |