Coupled atmospHere Interior modeL Intercomparison (CHILI)—Protocol Version 1.0: A CUISINES Intercomparison Project of Magma Ocean Models
The Planetary Science Journal, vol. 7, pp. 108
Abstract
Abstract Spectroscopic characterization of rocky exoplanets with the James Webb Space Telescope has brought the origin and evolution of their atmospheres into the focus of exoplanet science. Time-evolved models of the feedback between interior and atmosphere are critical to predict and interpret these observations and link them to the solar system terrestrial planets. However, models differ in methodologies and input data, which can lead to significant differences in interpretation. In this paper, we present the experimental protocol of the Coupled atmospHere Interior modeL Intercomparison (CHILI) project. CHILI is an (exo)planet model intercomparison project within the Climates Using Interactive Suites of Intercomparisons Nested for Exoplanet Studies (CUISINES) framework, which aims to support a diverse set of multimodel intercomparison projects in the exoplanet community. The present protocol includes the initial set of participating magma ocean models, divided into evolutionary and static models, and two types of test categories, one focused on solar system planets (Earth and Venus) and the other on exoplanets orbiting low-mass M dwarfs. Both test categories aim to quantify the evolution of key markers of the links between planetary atmospheres and interiors over geological timescales. The proposed tests would allow us to quantify and compare the differences between coupled atmosphere–interior models used by the exoplanet and planetary science communities. Results from the proposed tests will be published in dedicated follow-up papers. To encourage the community to join this comparison effort, and as an example, we present initial test results for the early Earth and TRAPPIST-1 b, conducted with models differing in the treatment of energy transport in the planetary interior and atmosphere, surface boundary layer, geochemistry, and in- and outgassing of volatile compounds.
Authors 25
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University of Groningen
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Stanford University
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University of Washington
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Leiden Observatory · Space Research Organisation Netherlands
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Leiden Observatory
SRON Netherlands Institute for Space Research
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University of Bristol
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Freie Universität Berlin
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Harvard Paulson School of Engineering and Applied Sciences
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Leiden Observatory
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McGill University
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University of Cambridge · University of Oxford
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University of Cambridge
University of Oxford
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University of Washington
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Univ. Bordeaux
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Stanford University
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Johns Hopkins University
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University of Groningen
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University of Groningen
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Institute of Space Research
Université Paris Cité
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Netherlands eScience Center
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Stanford University
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Goddard Space Flight Center · American University
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American University
NASA GSFC Sellers Exoplanet Environments Collaboration
NASA Goddard Space Flight Center
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National Astronomical Observatory of Japan
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National Astronomical Observatory of Japan
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Univ. Bordeaux
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Laboratoire Magmas et Volcans
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Freie Universität Berlin
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Netherlands eScience Center · IMEC
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IMEC
Netherlands eScience Center
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