Simulations of idealised 3D atmospheric flows on terrestrial planets using LFRic-Atmosphere

Abstract We demonstrate that LFRic-Atmosphere, a model built using the Met Office's GungHo dynamical core, is able to reproduce idealised large-scale atmospheric circulation patterns specified by several widely used benchmark recipes. This is motivated by the rapid rate of exoplanet discovery and the ever-growing need for numerical modelling and characterisation of their atmospheres. Here we present LFRic-Atmosphere's results for the idealised tests imitating circulation regimes commonly used in the exoplanet modelling community. The benchmarks include three analytic forcing cases: the standard Held–Suarez test, the Menou–Rauscher Earth-like test, and the Merlis–Schneider tidally locked Earth test. Qualitatively, LFRic-Atmosphere agrees well with other numerical models and shows excellent conservation properties in terms of total mass, angular momentum, and kinetic energy. We then use LFRic-Atmosphere with a more realistic representation of physical processes (radiation, subgrid-scale mixing, convection, clouds) by configuring it for the four TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI) scenarios. This is the first application of LFRic-Atmosphere to a possible climate of a confirmed terrestrial exoplanet. LFRic-Atmosphere reproduces the THAI scenarios within the spread of the existing models across a range of key climatic variables. Our work shows that LFRic-Atmosphere performs well in the seven benchmark tests for terrestrial atmospheres, justifying its use in future exoplanet climate studies.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Simulations of idealised 3D atmospheric flows on terrestrial planets using LFRic-Atmosphere ; volume:16 ; number:19 ; year:2023 ; pages:5601-5626 ; extent:26 ; Geoscientific model development ; 16, Heft 19 (2023), 5601-5626 (gesamt 26)

Contributors, Places and Time

• Creator: Sergeev, Denis E. ; Mayne, Nathan J. ; Bendall, Thomas ; Boutle, Ian A. ; Brown, Alex ; Kavčič, Iva ; Kent, James ; Kohary, Krisztian ; Manners, James ; Melvin, Thomas ; Olivier, Enrico ; Ragta, Lokesh K. ; Shipway, Ben ; Wakelin, Jon ; Wood, Nigel ; Zerroukat, Mohamed

Further information

• DOI: 10.5194/gmd-16-5601-2023
• URN: urn:nbn:de:101:1-2023101204191745811842
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:57 AM CEST