Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits
The springtime sublimation process of Mars’ southern seasonal polar CO2 ice cap features dark fan-shaped de- posits appearing on the top of the thawing ice sheet. The fan material likely originates from the surface below the ice sheet, brought up via CO2 jets breaking through the seasonal ice cap. O...
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ftzenodo:oai:zenodo.org:1475479 2023-05-15T16:38:10+02:00 Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits Aye, Klaus-Michael Schwamb, Megan E. Portyankina, Ganna Hansen, Candice J. McMaster, Adam Miller, Grant R.M. Carstensen, Brian Snyder, Christopher Parrish, Michael Lynn, Stuart Mai, Chuhong Miller, David Simpson, Robert J. Smith, Arfon M. 2018-10-31 https://zenodo.org/record/1475479 https://doi.org/10.5281/zenodo.1475479 unknown doi:10.5281/zenodo.1475478 https://zenodo.org/record/1475479 https://doi.org/10.5281/zenodo.1475479 oai:zenodo.org:1475479 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Icarus 319 info:eu-repo/semantics/article publication-article 2018 ftzenodo https://doi.org/10.5281/zenodo.147547910.5281/zenodo.1475478 2023-03-11T02:54:29Z The springtime sublimation process of Mars’ southern seasonal polar CO2 ice cap features dark fan-shaped de- posits appearing on the top of the thawing ice sheet. The fan material likely originates from the surface below the ice sheet, brought up via CO2 jets breaking through the seasonal ice cap. Once the dust and dirt is released into the atmosphere, the material may be blown by the surface winds into the dark streaks visible from orbit. The location, size and direction of these fans record a number of parameters important to quantifying seasonal winds and sublimation activity, the most important agent of geological change extant on Mars. We present results of a systematic mapping of these south polar seasonal fans with the Planet Four online citizen science project. Planet Four enlists the general public to map the shapes, directions, and sizes of the seasonal fans visible in orbital images. Over 80,000 volunteers have contributed to the Planet Four project, reviewing 221 images, from Mars Reconnaissance Orbiter’s HiRISE (High Resolution Imaging Science Experiment) camera, taken in southern spring during Mars Years 29 and 30. We provide an overview of Planet Four and detail the processes of combining multiple volunteer assessments together to generate a high delity catalog of ∼ 400000 south polar seasonal fans. We present the results from analyzing the wind directions at several locations monitored by HiRISE over two Mars years, providing new insights into polar surface winds. Article in Journal/Newspaper Ice cap Ice Sheet Zenodo |
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description |
The springtime sublimation process of Mars’ southern seasonal polar CO2 ice cap features dark fan-shaped de- posits appearing on the top of the thawing ice sheet. The fan material likely originates from the surface below the ice sheet, brought up via CO2 jets breaking through the seasonal ice cap. Once the dust and dirt is released into the atmosphere, the material may be blown by the surface winds into the dark streaks visible from orbit. The location, size and direction of these fans record a number of parameters important to quantifying seasonal winds and sublimation activity, the most important agent of geological change extant on Mars. We present results of a systematic mapping of these south polar seasonal fans with the Planet Four online citizen science project. Planet Four enlists the general public to map the shapes, directions, and sizes of the seasonal fans visible in orbital images. Over 80,000 volunteers have contributed to the Planet Four project, reviewing 221 images, from Mars Reconnaissance Orbiter’s HiRISE (High Resolution Imaging Science Experiment) camera, taken in southern spring during Mars Years 29 and 30. We provide an overview of Planet Four and detail the processes of combining multiple volunteer assessments together to generate a high delity catalog of ∼ 400000 south polar seasonal fans. We present the results from analyzing the wind directions at several locations monitored by HiRISE over two Mars years, providing new insights into polar surface winds. |
format |
Article in Journal/Newspaper |
author |
Aye, Klaus-Michael Schwamb, Megan E. Portyankina, Ganna Hansen, Candice J. McMaster, Adam Miller, Grant R.M. Carstensen, Brian Snyder, Christopher Parrish, Michael Lynn, Stuart Mai, Chuhong Miller, David Simpson, Robert J. Smith, Arfon M. |
spellingShingle |
Aye, Klaus-Michael Schwamb, Megan E. Portyankina, Ganna Hansen, Candice J. McMaster, Adam Miller, Grant R.M. Carstensen, Brian Snyder, Christopher Parrish, Michael Lynn, Stuart Mai, Chuhong Miller, David Simpson, Robert J. Smith, Arfon M. Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
author_facet |
Aye, Klaus-Michael Schwamb, Megan E. Portyankina, Ganna Hansen, Candice J. McMaster, Adam Miller, Grant R.M. Carstensen, Brian Snyder, Christopher Parrish, Michael Lynn, Stuart Mai, Chuhong Miller, David Simpson, Robert J. Smith, Arfon M. |
author_sort |
Aye, Klaus-Michael |
title |
Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
title_short |
Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
title_full |
Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
title_fullStr |
Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
title_full_unstemmed |
Planet Four: Probing springtime winds on Mars by mapping the southern polar CO2 jet deposits |
title_sort |
planet four: probing springtime winds on mars by mapping the southern polar co2 jet deposits |
publishDate |
2018 |
url |
https://zenodo.org/record/1475479 https://doi.org/10.5281/zenodo.1475479 |
genre |
Ice cap Ice Sheet |
genre_facet |
Ice cap Ice Sheet |
op_source |
Icarus 319 |
op_relation |
doi:10.5281/zenodo.1475478 https://zenodo.org/record/1475479 https://doi.org/10.5281/zenodo.1475479 oai:zenodo.org:1475479 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.147547910.5281/zenodo.1475478 |
_version_ |
1766028463034073088 |