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The TRAPPIST-1 Habi...
The TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). I. Dry Cases-The Fellowship of the GCMs
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- Turbet, Martin (författare)
- Sorbonne Univ, PSL Res Univ, Ecole Normale Super, Ecole Polytech,Lab Meteorol Dynam,IPSL,CNRS, F-75005 Paris, France.;Univ Geneva, Observ Astron, Chemin Maillettes 51, CH-1290 Versoix, Switzerland.
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- Fauchez, Thomas J. (författare)
- NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.;Univ Space Res Assoc USRA, Goddard Earth Sci Technol & Res GESTAR, Columbia, MD USA.;NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA.
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- Sergeev, Denis E. (författare)
- Univ Exeter, Coll Engn Math & Phys Sci, Dept Math, Exeter EX4 4QF, England.
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- Boutle, Ian A. (författare)
- Met Off, FitzRoy Rd, Exeter England, England.;Univ Exeter, Coll Engn Math & Phys Sci, Dept Astrophys, Exeter EX4 4QL, England.
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- Tsigaridis, Kostas (författare)
- Columbia Univ, Ctr Climate Syst Res, New York, NY 10025 USA.;NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA.
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- Way, Michael J. (författare)
- Uppsala universitet,Observationell astrofysik,Teoretisk astrofysik,NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA.;NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA.;Uppsala Univ, Dept Phys & Astron, Theoret Astrophys, Uppsala, Sweden.
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- Wolf, Eric T. (författare)
- NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA.;Univ Colorado Boulder, Lab Atmospher & Space Phys, Boulder, CO 80303 USA.;NASA, NExSS Virtual Planetary Lab, Seattle, WA 98195 USA.
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- Domagal-Goldman, Shawn D. (författare)
- NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.;NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA.;NASA, NExSS Virtual Planetary Lab, Seattle, WA 98195 USA.
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- Forget, Francois (författare)
- Sorbonne Univ, PSL Res Univ, Ecole Normale Super, Ecole Polytech,Lab Meteorol Dynam,IPSL,CNRS, F-75005 Paris, France.
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- Haqq-Misra, Jacob (författare)
- NASA, NExSS Virtual Planetary Lab, Seattle, WA 98195 USA.;Blue Marble Space Inst Sci, Seattle, WA 98104 USA.
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- Kopparapu, Ravi K. (författare)
- NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.;NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA.;NASA, NExSS Virtual Planetary Lab, Seattle, WA 98195 USA.
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- Lambert, F. Hugo (författare)
- Univ Exeter, Coll Engn Math & Phys Sci, Dept Math, Exeter EX4 4QF, England.
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- Manners, James (författare)
- Met Off, FitzRoy Rd, Exeter England, England.
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- Mayne, Nathan J. (författare)
- Univ Exeter, Coll Engn Math & Phys Sci, Dept Astrophys, Exeter EX4 4QL, England.
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- Sohl, Linda (författare)
- Columbia Univ, Ctr Climate Syst Res, New York, NY 10025 USA.;NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA.
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Sorbonne Univ, PSL Res Univ, Ecole Normale Super, Ecole Polytech,Lab Meteorol Dynam,IPSL,CNRS, F-75005 Paris, France;Univ Geneva, Observ Astron, Chemin Maillettes 51, CH-1290 Versoix, Switzerland. NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.;Univ Space Res Assoc USRA, Goddard Earth Sci Technol & Res GESTAR, Columbia, MD USA.;NASA, GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA. (creator_code:org_t)
- IOP Publishing Ltd, 2022
- 2022
- Engelska.
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Ingår i: The Planetary Science Journal. - : IOP Publishing Ltd. - 2632-3338. ; 3:9
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- With the commissioning of powerful, new-generation telescopes such as the James Webb Space Telescope (JWST) and the ground-based Extremely Large Telescopes, the first characterization of a high molecular weight atmosphere around a temperate rocky exoplanet is imminent. Atmospheric simulations and synthetic observables of target exoplanets are essential to prepare and interpret these observations. Here we report the results of the first part of the TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI) project, which compares 3D numerical simulations performed with four state-of-the-art global climate models (ExoCAM, LMD-Generic, ROCKE-3D, Unified Model) for the potentially habitable target TRAPPIST-1e. In this first part, we present the results of dry atmospheric simulations. These simulations serve as a benchmark to test how radiative transfer, subgrid-scale mixing (dry turbulence and convection), and large-scale dynamics impact the climate of TRAPPIST-1e and consequently the transit spectroscopy signature as seen by JWST. To first order, the four models give results in good agreement. The intermodel spread in the global mean surface temperature amounts to 7 K (6 K) for the N-2-dominated (CO2-dominated) atmosphere. The radiative fluxes are also remarkably similar (intermodel variations less than 5%), from the surface (1 bar) up to atmospheric pressures similar to 5 mbar. Moderate differences between the models appear in the atmospheric circulation pattern (winds) and the (stratospheric) thermal structure. These differences arise between the models from (1) large-scale dynamics, because TRAPPIST-1e lies at the tipping point between two different circulation regimes (fast and Rhines rotators) in which the models can be alternatively trapped, and (2) parameterizations used in the upper atmosphere such as numerical damping.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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Turbet, Martin
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Fauchez, Thomas ...
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Sergeev, Denis E ...
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Boutle, Ian A.
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Tsigaridis, Kost ...
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Way, Michael J.
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Wolf, Eric T.
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Domagal-Goldman, ...
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Forget, Francois
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Haqq-Misra, Jaco ...
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Kopparapu, Ravi ...
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Lambert, F. Hugo
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Manners, James
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Mayne, Nathan J.
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Sohl, Linda
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