Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities
Abstract We systematically investigated the climate of water-rich terrestrial planets with a negative feedback mechanism of carbonate-silicate geochemical cycle against the climate under various obliquities and semi-major axes. We found that, while the permanent ice-cap mode (partially ice-covered t...
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Online Access: | http://dx.doi.org/10.1017/s1743921313013112 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921313013112 |
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crcambridgeupr:10.1017/s1743921313013112 2023-05-15T16:38:08+02:00 Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities Watanabe, Yoshiyasu Tajika, Eiichi Kadoya, Shintaro 2012 http://dx.doi.org/10.1017/s1743921313013112 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921313013112 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Proceedings of the International Astronomical Union volume 8, issue S293, page 333-335 ISSN 1743-9213 1743-9221 Astronomy and Astrophysics Space and Planetary Science journal-article 2012 crcambridgeupr https://doi.org/10.1017/s1743921313013112 2022-04-07T08:54:31Z Abstract We systematically investigated the climate of water-rich terrestrial planets with a negative feedback mechanism of carbonate-silicate geochemical cycle against the climate under various obliquities and semi-major axes. We found that, while the permanent ice-cap mode (partially ice-covered throughout the year) and the seasonal ice-cap mode (partially ice-covered seasonally) exist stably at low obliquity conditions, the ranges of semi-major axis for these climate modes shrink and finally disappear with an increase of obliquity. When carbonate-silicate geochemical cycle is taken into account, the ranges of semi-major axis for all the climate modes expand at any obliquities, compared with the cases without carbonate-silicate geochemical cycle, indicating that the carbonate-silicate geochemical cycle strongly stabilizes the climate for the planets with any obliquities inside the habitable zone. Article in Journal/Newspaper Ice cap Cambridge University Press (via Crossref) Proceedings of the International Astronomical Union 8 S293 333 335 |
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Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Astronomy and Astrophysics Space and Planetary Science |
spellingShingle |
Astronomy and Astrophysics Space and Planetary Science Watanabe, Yoshiyasu Tajika, Eiichi Kadoya, Shintaro Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
topic_facet |
Astronomy and Astrophysics Space and Planetary Science |
description |
Abstract We systematically investigated the climate of water-rich terrestrial planets with a negative feedback mechanism of carbonate-silicate geochemical cycle against the climate under various obliquities and semi-major axes. We found that, while the permanent ice-cap mode (partially ice-covered throughout the year) and the seasonal ice-cap mode (partially ice-covered seasonally) exist stably at low obliquity conditions, the ranges of semi-major axis for these climate modes shrink and finally disappear with an increase of obliquity. When carbonate-silicate geochemical cycle is taken into account, the ranges of semi-major axis for all the climate modes expand at any obliquities, compared with the cases without carbonate-silicate geochemical cycle, indicating that the carbonate-silicate geochemical cycle strongly stabilizes the climate for the planets with any obliquities inside the habitable zone. |
format |
Article in Journal/Newspaper |
author |
Watanabe, Yoshiyasu Tajika, Eiichi Kadoya, Shintaro |
author_facet |
Watanabe, Yoshiyasu Tajika, Eiichi Kadoya, Shintaro |
author_sort |
Watanabe, Yoshiyasu |
title |
Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
title_short |
Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
title_full |
Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
title_fullStr |
Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
title_full_unstemmed |
Climate of Extraterrestrial Planets with Oceans and Carbonate-Silicate Geochemical Cycle Under Various Obliquities |
title_sort |
climate of extraterrestrial planets with oceans and carbonate-silicate geochemical cycle under various obliquities |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s1743921313013112 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921313013112 |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
Proceedings of the International Astronomical Union volume 8, issue S293, page 333-335 ISSN 1743-9213 1743-9221 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s1743921313013112 |
container_title |
Proceedings of the International Astronomical Union |
container_volume |
8 |
container_issue |
S293 |
container_start_page |
333 |
op_container_end_page |
335 |
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1766028420652728320 |