Abstract
Results are presented from the GFDL “SKYHI” general circulation model that illuminate the effects of increasing horizontal grid resolution. The model experiments reveal a very pronounced improvement of simulation skill at the highest resolution tested (1° latitude grid size). The zonal wind climatology is particularly affected with dramatic improvements in the stratospheric winter westerlies and the positions of the tropospheric subtropical jet streams. These improvements are apparently related to increases in tropospheric wave forcing, specifically the Eliassen-Palm flux. The 1° resolution model has successfully simulated a major mid-stratospheric sudden warming event. Some preliminary analysis and insights on the causes and character of the sudden warming event are presented.
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References
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© 1987 D. Reidel Publishing Company, Dordrecht, Holand.
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Mahlman, J.D., Umscheidl, L.J. (1987). Comprehensive Modeling of the Middle Atmosphere: The Influence of Horizontal Resolution. In: Visconti, G., Garcia, R. (eds) Transport Processes in the Middle Atmosphere. NATO ASI Series, vol 213. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3973-8_17
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DOI: https://doi.org/10.1007/978-94-009-3973-8_17
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