High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations
International audience The Martian climate hosts a rare phenomenon of condensation of the bulk atmosphere. CO 2 condenses on the polar ice caps, but also forms clouds in the atmosphere. The existence of low-level, convective CO 2 clouds in the polar night was indirectly discovered by MOLA [1,2] and...
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ftuniversailles:oai:HAL:hal-00484879v1 2024-05-19T07:47:34+00:00 High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations Määttänen, Anni Montmessin, Franck Gondet, B. Hoffmann, H. Scholten, F. Hauber, E. Gonzalez-Galindo, F. Forget, F. Bibring, J.-P. Bertaux, Jean-Loup Neukum, G. PLANETO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut d'astrophysique spatiale (IAS) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Deutsches Zentrum für Luft- und Raumfahrt (DLR) 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 École normale supérieure - Paris (ENS-PSL) 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) Freie Universität Berlin Seattle, WA, United States 2009-07-21 https://hal.science/hal-00484879 https://hal.science/hal-00484879/document https://hal.science/hal-00484879/file/7023.pdf en eng HAL CCSD Lunar and Planetary Institute hal-00484879 https://hal.science/hal-00484879 https://hal.science/hal-00484879/document https://hal.science/hal-00484879/file/7023.pdf info:eu-repo/semantics/OpenAccess Mars Polar Energy Balance and the CO 2 Cycle Third International Workshop on Mars Polar Energy Balance and the CO 2 Cycle https://hal.science/hal-00484879 Third International Workshop on Mars Polar Energy Balance and the CO2 Cycle, Jul 2009, Seattle, WA, United States. pp.37-38 [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] info:eu-repo/semantics/conferenceObject Conference papers 2009 ftuniversailles 2024-04-25T00:35:29Z International audience The Martian climate hosts a rare phenomenon of condensation of the bulk atmosphere. CO 2 condenses on the polar ice caps, but also forms clouds in the atmosphere. The existence of low-level, convective CO 2 clouds in the polar night was indirectly discovered by MOLA [1,2] and modeled in some studies [3-5]. Recently several satellite instruments [6-9] have observed CO 2 clouds also near the equator, but at high altitudes where the temperatures are low enough for CO 2 condensation. Montmessin et al. [7] identified spectroscopically from MEx/OMEGA observations these high-altitude clouds to be composed of CO2 ice crystals by modeling the CO2 ice spectral signature that was observed in a deep CO 2 gas absorption band at around 4.3 μm. In this work we have used the OMEGA [10] and HRSC [11] observations to map the occurrences of the high-altitude CO 2 clouds and their properties. We have also compared the observations to the predictions of the LMD Mars Global Climate Model (LMD-MGCM) [12] and in particular its improved version that extends to the upper atmosphere [13]. Conference Object polar night Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
institution |
Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
spellingShingle |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] Määttänen, Anni Montmessin, Franck Gondet, B. Hoffmann, H. Scholten, F. Hauber, E. Gonzalez-Galindo, F. Forget, F. Bibring, J.-P. Bertaux, Jean-Loup Neukum, G. High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
topic_facet |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
description |
International audience The Martian climate hosts a rare phenomenon of condensation of the bulk atmosphere. CO 2 condenses on the polar ice caps, but also forms clouds in the atmosphere. The existence of low-level, convective CO 2 clouds in the polar night was indirectly discovered by MOLA [1,2] and modeled in some studies [3-5]. Recently several satellite instruments [6-9] have observed CO 2 clouds also near the equator, but at high altitudes where the temperatures are low enough for CO 2 condensation. Montmessin et al. [7] identified spectroscopically from MEx/OMEGA observations these high-altitude clouds to be composed of CO2 ice crystals by modeling the CO2 ice spectral signature that was observed in a deep CO 2 gas absorption band at around 4.3 μm. In this work we have used the OMEGA [10] and HRSC [11] observations to map the occurrences of the high-altitude CO 2 clouds and their properties. We have also compared the observations to the predictions of the LMD Mars Global Climate Model (LMD-MGCM) [12] and in particular its improved version that extends to the upper atmosphere [13]. |
author2 |
PLANETO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut d'astrophysique spatiale (IAS) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Deutsches Zentrum für Luft- und Raumfahrt (DLR) 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 École normale supérieure - Paris (ENS-PSL) 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) Freie Universität Berlin |
format |
Conference Object |
author |
Määttänen, Anni Montmessin, Franck Gondet, B. Hoffmann, H. Scholten, F. Hauber, E. Gonzalez-Galindo, F. Forget, F. Bibring, J.-P. Bertaux, Jean-Loup Neukum, G. |
author_facet |
Määttänen, Anni Montmessin, Franck Gondet, B. Hoffmann, H. Scholten, F. Hauber, E. Gonzalez-Galindo, F. Forget, F. Bibring, J.-P. Bertaux, Jean-Loup Neukum, G. |
author_sort |
Määttänen, Anni |
title |
High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
title_short |
High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
title_full |
High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
title_fullStr |
High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
title_full_unstemmed |
High-altitude CO 2 clouds on Mars: OMEGA and HRSC observations |
title_sort |
high-altitude co 2 clouds on mars: omega and hrsc observations |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00484879 https://hal.science/hal-00484879/document https://hal.science/hal-00484879/file/7023.pdf |
op_coverage |
Seattle, WA, United States |
genre |
polar night |
genre_facet |
polar night |
op_source |
Mars Polar Energy Balance and the CO 2 Cycle Third International Workshop on Mars Polar Energy Balance and the CO 2 Cycle https://hal.science/hal-00484879 Third International Workshop on Mars Polar Energy Balance and the CO2 Cycle, Jul 2009, Seattle, WA, United States. pp.37-38 |
op_relation |
hal-00484879 https://hal.science/hal-00484879 https://hal.science/hal-00484879/document https://hal.science/hal-00484879/file/7023.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1799488003627810816 |