Benchmark experiments with global climate models applicable to extra-solar gas giant planets in the shallow atmosphere approximation

Bending, V. L.; Lewis, S. R. and Kolb, U. (2013). Benchmark experiments with global climate models applicable to extra-solar gas giant planets in the shallow atmosphere approximation. Monthly Notices of the Royal Astronomical Society, 428(4) pp. 2874–2884.

DOI: https://doi.org/10.1093/mnras/sts357

URL: http://mnras.oxfordjournals.org/content/428/4/2874

Abstract

The growing field of exoplanetary atmospheric modelling has seen little work on standardised benchmark tests for its models, limiting understanding of the dependence of results on specific models and conditions. With spatially resolved observations as yet difficult to obtain, such a test is invaluable. Although an intercomparison test for models of tidally locked gas giant planets has previously been suggested and carried out, the data provided were limited in terms of comparability. Here, the shallow PUMA model is subjected to such a test, and detailed statistics produced to facilitate comparison, with both time means and the associated standard deviations displayed, removing the time dependence and providing a measure of the variability. Model runs have been analysed to determine the variability between resolutions, and the effect of resolution on the energy spectra studied. Superrotation is a robust and reproducible feature at all resolutions.

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