Annual Heat Balance of Martian Polar Caps: Viking Observations
The Infrared Thermal Mappers aboard the two Viking orbiters obtained solar reflectance and infrared emission measurements of the Martian north and south polar regions during an entire Mars year. The observations were used to determine annual radiation budgets, infer annual carbon dioxide frost budge...
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American Association for the Advancement of Science
1985
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ftcaltechauth:oai:authors.library.caltech.edu:54144 2023-05-15T18:22:25+02:00 Annual Heat Balance of Martian Polar Caps: Viking Observations Paige, David A. Ingersoll, Andrew P. 1985-06-07 https://authors.library.caltech.edu/54144/ https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194 unknown American Association for the Advancement of Science Paige, David A. and Ingersoll, Andrew P. (1985) Annual Heat Balance of Martian Polar Caps: Viking Observations. Science, 228 (4704). pp. 1160-1168. ISSN 0036-8075. doi:10.1126/science.228.4704.1160. https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194 <https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194> Article PeerReviewed 1985 ftcaltechauth https://doi.org/10.1126/science.228.4704.1160 2021-11-11T19:02:25Z The Infrared Thermal Mappers aboard the two Viking orbiters obtained solar reflectance and infrared emission measurements of the Martian north and south polar regions during an entire Mars year. The observations were used to determine annual radiation budgets, infer annual carbon dioxide frost budgets, and constrain spring season surface and atmospheric properties with the aid of a polar radiative model. The results provide further confirmation of the presence of permanent CO_2 frost deposits near the south pole and show that the stability of these deposits can be explained by their high reflectivities. In the north, the observed absence of solid CO_2 during summer was primarily the result of enhanced CO_2 sublimation rates due to lower frost reflectivities during spring. The results suggest that the present asymmetric behavior of CO_2 frost at the Martian poles is caused by preferential contamination of the north seasonal polar cap by atmospheric dust. Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) South Pole Science 228 4704 1160 1168 |
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Caltech Authors (California Institute of Technology) |
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description |
The Infrared Thermal Mappers aboard the two Viking orbiters obtained solar reflectance and infrared emission measurements of the Martian north and south polar regions during an entire Mars year. The observations were used to determine annual radiation budgets, infer annual carbon dioxide frost budgets, and constrain spring season surface and atmospheric properties with the aid of a polar radiative model. The results provide further confirmation of the presence of permanent CO_2 frost deposits near the south pole and show that the stability of these deposits can be explained by their high reflectivities. In the north, the observed absence of solid CO_2 during summer was primarily the result of enhanced CO_2 sublimation rates due to lower frost reflectivities during spring. The results suggest that the present asymmetric behavior of CO_2 frost at the Martian poles is caused by preferential contamination of the north seasonal polar cap by atmospheric dust. |
format |
Article in Journal/Newspaper |
author |
Paige, David A. Ingersoll, Andrew P. |
spellingShingle |
Paige, David A. Ingersoll, Andrew P. Annual Heat Balance of Martian Polar Caps: Viking Observations |
author_facet |
Paige, David A. Ingersoll, Andrew P. |
author_sort |
Paige, David A. |
title |
Annual Heat Balance of Martian Polar Caps: Viking Observations |
title_short |
Annual Heat Balance of Martian Polar Caps: Viking Observations |
title_full |
Annual Heat Balance of Martian Polar Caps: Viking Observations |
title_fullStr |
Annual Heat Balance of Martian Polar Caps: Viking Observations |
title_full_unstemmed |
Annual Heat Balance of Martian Polar Caps: Viking Observations |
title_sort |
annual heat balance of martian polar caps: viking observations |
publisher |
American Association for the Advancement of Science |
publishDate |
1985 |
url |
https://authors.library.caltech.edu/54144/ https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
Paige, David A. and Ingersoll, Andrew P. (1985) Annual Heat Balance of Martian Polar Caps: Viking Observations. Science, 228 (4704). pp. 1160-1168. ISSN 0036-8075. doi:10.1126/science.228.4704.1160. https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194 <https://resolver.caltech.edu/CaltechAUTHORS:20150127-124550194> |
op_doi |
https://doi.org/10.1126/science.228.4704.1160 |
container_title |
Science |
container_volume |
228 |
container_issue |
4704 |
container_start_page |
1160 |
op_container_end_page |
1168 |
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1766201823012585472 |