3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability
International audience The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, however, may not be so relevant for inhomogeneously irradiated planets, or when the water content is li...
Published in: | Astronomy & Astrophysics |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Online Access: | https://hal.science/hal-00839218 https://hal.science/hal-00839218/document https://hal.science/hal-00839218/file/aa21042-13.pdf https://doi.org/10.1051/0004-6361/201321042 |
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ftinsu:oai:HAL:hal-00839218v1 |
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openpolar |
institution |
Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
planets and satellites: general planets and satellites: atmospheres planets and satellites: physical evolution planet-star interactions [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
planets and satellites: general planets and satellites: atmospheres planets and satellites: physical evolution planet-star interactions [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Leconte, J. Forget, Francois Charnay, Benjamin Wordsworth, Robin Selsis, Franck Millour, Ehouarn 3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
topic_facet |
planets and satellites: general planets and satellites: atmospheres planets and satellites: physical evolution planet-star interactions [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, however, may not be so relevant for inhomogeneously irradiated planets, or when the water content is limited (land planets). Here, based on results from our 3D global climate model, we find that the circulation pattern can shift from super-rotation to stellar/anti stellar circulation when the equatorial Rossby deformation radius significantly exceeds the planetary radius. Using analytical and numerical arguments, we also demonstrate the presence of systematic biases between mean surface temperatures or temperature profiles predicted from either 1D or 3D simulations. Including a complete modeling of the water cycle, we further demonstrate that for land planets closer than the inner edge of the classical habitable zone, two stable climate regimes can exist. One is the classical runaway state, and the other is a collapsed state where water is captured in permanent cold traps. We identify this "moist" bistability as the result of a competition between the greenhouse effect of water vapor and its condensation. We also present synthetic spectra showing the observable signature of these two states. Taking the example of two prototype planets in this regime, namely Gl581c and HD85512b, we argue that they could accumulate a significant amount of water ice at their surface. If such a thick ice cap is present, gravity driven ice flows and geothermal flux should come into play to produce long-lived liquid water at the edge and/or bottom of the ice cap. Consequently, the habitability of planets at smaller orbital distance than the inner edge of the classical habitable zone cannot be ruled out. Transiting planets in this regime represent promising targets for upcoming observatories like EChO and JWST. |
author2 |
Institut Pierre-Simon-Laplace (IPSL) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Université Pierre et Marie Curie - Paris 6 (UPMC) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) SSE 2013 Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS) |
format |
Article in Journal/Newspaper |
author |
Leconte, J. Forget, Francois Charnay, Benjamin Wordsworth, Robin Selsis, Franck Millour, Ehouarn |
author_facet |
Leconte, J. Forget, Francois Charnay, Benjamin Wordsworth, Robin Selsis, Franck Millour, Ehouarn |
author_sort |
Leconte, J. |
title |
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
title_short |
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
title_full |
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
title_fullStr |
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
title_full_unstemmed |
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability |
title_sort |
3d climate modeling of close-in land planets: circulation patterns, climate moist bistability and habitability |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00839218 https://hal.science/hal-00839218/document https://hal.science/hal-00839218/file/aa21042-13.pdf https://doi.org/10.1051/0004-6361/201321042 |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
ISSN: 0004-6361 EISSN: 1432-0756 Astronomy and Astrophysics - A&A https://hal.science/hal-00839218 Astronomy and Astrophysics - A&A, 2013, 554, pp.id.A69. ⟨10.1051/0004-6361/201321042⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1303.7079 info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201321042 hal-00839218 https://hal.science/hal-00839218 https://hal.science/hal-00839218/document https://hal.science/hal-00839218/file/aa21042-13.pdf ARXIV: 1303.7079 BIBCODE: 2013A&A.554A.69L doi:10.1051/0004-6361/201321042 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1051/0004-6361/201321042 |
container_title |
Astronomy & Astrophysics |
container_volume |
554 |
container_start_page |
A69 |
_version_ |
1797584554525982720 |
spelling |
ftinsu:oai:HAL:hal-00839218v1 2024-04-28T08:23:58+00:00 3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability Leconte, J. Forget, Francois Charnay, Benjamin Wordsworth, Robin Selsis, Franck Millour, Ehouarn Institut Pierre-Simon-Laplace (IPSL) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Université Pierre et Marie Curie - Paris 6 (UPMC) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) SSE 2013 Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS) 2013 https://hal.science/hal-00839218 https://hal.science/hal-00839218/document https://hal.science/hal-00839218/file/aa21042-13.pdf https://doi.org/10.1051/0004-6361/201321042 en eng HAL CCSD EDP Sciences info:eu-repo/semantics/altIdentifier/arxiv/1303.7079 info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201321042 hal-00839218 https://hal.science/hal-00839218 https://hal.science/hal-00839218/document https://hal.science/hal-00839218/file/aa21042-13.pdf ARXIV: 1303.7079 BIBCODE: 2013A&A.554A.69L doi:10.1051/0004-6361/201321042 info:eu-repo/semantics/OpenAccess ISSN: 0004-6361 EISSN: 1432-0756 Astronomy and Astrophysics - A&A https://hal.science/hal-00839218 Astronomy and Astrophysics - A&A, 2013, 554, pp.id.A69. ⟨10.1051/0004-6361/201321042⟩ planets and satellites: general planets and satellites: atmospheres planets and satellites: physical evolution planet-star interactions [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2013 ftinsu https://doi.org/10.1051/0004-6361/201321042 2024-04-05T00:30:24Z International audience The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, however, may not be so relevant for inhomogeneously irradiated planets, or when the water content is limited (land planets). Here, based on results from our 3D global climate model, we find that the circulation pattern can shift from super-rotation to stellar/anti stellar circulation when the equatorial Rossby deformation radius significantly exceeds the planetary radius. Using analytical and numerical arguments, we also demonstrate the presence of systematic biases between mean surface temperatures or temperature profiles predicted from either 1D or 3D simulations. Including a complete modeling of the water cycle, we further demonstrate that for land planets closer than the inner edge of the classical habitable zone, two stable climate regimes can exist. One is the classical runaway state, and the other is a collapsed state where water is captured in permanent cold traps. We identify this "moist" bistability as the result of a competition between the greenhouse effect of water vapor and its condensation. We also present synthetic spectra showing the observable signature of these two states. Taking the example of two prototype planets in this regime, namely Gl581c and HD85512b, we argue that they could accumulate a significant amount of water ice at their surface. If such a thick ice cap is present, gravity driven ice flows and geothermal flux should come into play to produce long-lived liquid water at the edge and/or bottom of the ice cap. Consequently, the habitability of planets at smaller orbital distance than the inner edge of the classical habitable zone cannot be ruled out. Transiting planets in this regime represent promising targets for upcoming observatories like EChO and JWST. Article in Journal/Newspaper Ice cap Institut national des sciences de l'Univers: HAL-INSU Astronomy & Astrophysics 554 A69 |