Investigating Mars South Residual CO2 Cap with a Global Climate Model
The CO2 cycle is one of the three controlling climate cycles on Mars. One aspect of the CO2 cycle that is not yet fully understood is the existence of a residual CO2 ice cap that is offset from the south pole. Previous investigations suggest that the atmosphere may control the placement of the south...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20160011105 2023-05-15T16:38:15+02:00 Investigating Mars South Residual CO2 Cap with a Global Climate Model Haberle, R. M. Dequaire, J. Hollingsworth, J. L. Kahre, M. A. Unclassified, Unlimited, Publicly available September 5, 2016 application/pdf http://hdl.handle.net/2060/20160011105 unknown Document ID: 20160011105 http://hdl.handle.net/2060/20160011105 Copyright, Distribution as joint owner in the copyright CASI Lunar and Planetary Science and Exploration ARC-E-DAA-TN33840 International Conference on Mars Polar Science and Exploration; 5-9 Sep. 2016; Reykjavik; Iceland 2016 ftnasantrs 2019-07-20T23:45:52Z The CO2 cycle is one of the three controlling climate cycles on Mars. One aspect of the CO2 cycle that is not yet fully understood is the existence of a residual CO2 ice cap that is offset from the south pole. Previous investigations suggest that the atmosphere may control the placement of the south residual cap (e.g., Colaprete et al., 2005). These investigations show that topographically forced stationary eddies in the south during southern hemisphere winter produce colder atmospheric temperatures and increased CO2 snowfall over the hemisphere where the residual cap resides. Since precipitated CO2 ice produces higher surface albedos than directly deposited CO2 ice, it is plausible that CO2 snowfall resulting from the zonally asymmetric atmospheric circulation produces surface ice albedos high enough to maintain a residual cap only in one hemisphere. The goal of the current work is to further evaluate Colaprete et al.'s hypothesis by investigating model-predicted seasonally varying snowfall patterns in the southern polar region and the atmospheric circulation components that control them. Other/Unknown Material Ice cap South pole NASA Technical Reports Server (NTRS) South Pole |
institution |
Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Lunar and Planetary Science and Exploration |
spellingShingle |
Lunar and Planetary Science and Exploration Haberle, R. M. Dequaire, J. Hollingsworth, J. L. Kahre, M. A. Investigating Mars South Residual CO2 Cap with a Global Climate Model |
topic_facet |
Lunar and Planetary Science and Exploration |
description |
The CO2 cycle is one of the three controlling climate cycles on Mars. One aspect of the CO2 cycle that is not yet fully understood is the existence of a residual CO2 ice cap that is offset from the south pole. Previous investigations suggest that the atmosphere may control the placement of the south residual cap (e.g., Colaprete et al., 2005). These investigations show that topographically forced stationary eddies in the south during southern hemisphere winter produce colder atmospheric temperatures and increased CO2 snowfall over the hemisphere where the residual cap resides. Since precipitated CO2 ice produces higher surface albedos than directly deposited CO2 ice, it is plausible that CO2 snowfall resulting from the zonally asymmetric atmospheric circulation produces surface ice albedos high enough to maintain a residual cap only in one hemisphere. The goal of the current work is to further evaluate Colaprete et al.'s hypothesis by investigating model-predicted seasonally varying snowfall patterns in the southern polar region and the atmospheric circulation components that control them. |
format |
Other/Unknown Material |
author |
Haberle, R. M. Dequaire, J. Hollingsworth, J. L. Kahre, M. A. |
author_facet |
Haberle, R. M. Dequaire, J. Hollingsworth, J. L. Kahre, M. A. |
author_sort |
Haberle, R. M. |
title |
Investigating Mars South Residual CO2 Cap with a Global Climate Model |
title_short |
Investigating Mars South Residual CO2 Cap with a Global Climate Model |
title_full |
Investigating Mars South Residual CO2 Cap with a Global Climate Model |
title_fullStr |
Investigating Mars South Residual CO2 Cap with a Global Climate Model |
title_full_unstemmed |
Investigating Mars South Residual CO2 Cap with a Global Climate Model |
title_sort |
investigating mars south residual co2 cap with a global climate model |
publishDate |
2016 |
url |
http://hdl.handle.net/2060/20160011105 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
Ice cap South pole |
genre_facet |
Ice cap South pole |
op_source |
CASI |
op_relation |
Document ID: 20160011105 http://hdl.handle.net/2060/20160011105 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766028530624233472 |