DOI: 10.1007/s00382-014-2314-2
Scopus记录号: 2-s2.0-84935038295
论文题名: The quasi-biennial oscillation in a warmer climate: sensitivity to different gravity wave parameterizations
作者: Schirber S. ; Manzini E. ; Krismer T. ; Giorgetta M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-03-04 起始页码: 825
结束页码: 836
语种: 英语
英文关键词: Climate change
; Gravity waves
; Parameterization
; Quasi-biennial oscillation
英文摘要: In order to simulate the quasi-biennial oscillation (QBO) with a realistic period and amplitude, general circulation models commonly include parameterizations of small scale gravity waves (GW). In this work, we explore how different GW parameterization setups determine the response of QBO properties to a warmer climate. Atmosphere-only experiments in both present day and warmer climate serve as testbed to analyze the effect of four different GW parameterization setups, active in the tropics. Having tuned the GW parameterizations to produce a realistic QBO in present day climate, we analyze changes of QBO properties in the warmer climate. The QBO period decreases in two parameterization setups by ~30 %, while the QBO period remains unchanged in the remaining two parameterization setups. In all parameterization setups, the QBO amplitude in the warmer climate weakens below 10 hPa but shows different behaviour above 10 hPa. We show that changes in QBO amplitude and changes in QBO period are inconsistent among experiments. In the chosen experimental design, the inconsistent future change in QBO properties among the suite of experiments depends solely on the choice of the GW parameterization setup. © 2014, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54064
Appears in Collections: 过去全球变化的重建
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作者单位: Max Planck Insitute for Meterology, Bundesstr. 53, Hamburg, Germany
Recommended Citation:
Schirber S.,Manzini E.,Krismer T.,et al. The quasi-biennial oscillation in a warmer climate: sensitivity to different gravity wave parameterizations[J]. Climate Dynamics,2015-01-01,45(2017-03-04)