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首页> 外文期刊>Geophysical Research Letters >Magnitudes and Spatial Patterns of Interdecadal Temperature Variability in CMIP6
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Magnitudes and Spatial Patterns of Interdecadal Temperature Variability in CMIP6

机译:CMIP6中的跨界温度变异性的大小和空间模式

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摘要

Attribution and prediction of global and regional warming requires a better understanding of the magnitude and spatial characteristics of internal global mean surface air temperature (GMST) variability. We examine interdecadal GMST variability in Coupled Modeling Intercomparison Projects, Phases 3, 5, and 6 (CMIP3, CMIP5, and CMIP6) preindustrial control (piControl), last millennium, and historical simulations and in observational data. We find that several CMIP6 simulations show more GMST interdecadal variability than the previous generations of model simulations. Nonetheless, we find that 100-year trends in CMIP6 piControl simulations never exceed the maximum observed warming trend. Furthermore, interdecadal GMST variability in the unforced piControl simulations is associated with regional variability in the high latitudes and the east Pacific, whereas interdecadal GMST variability in instrumental data and in historical simulations with external forcing is more globally coherent and is associated with variability in tropical deep convective regions.
机译:全球和区域变暖的归因和预测需要更好地了解内部全局平均表面空气温度(GMST)变异性的幅度和空间特征。我们在耦合建模的相互比较项目,阶段3,5和6(CMIP3,CMIP5和CMIP6)的预工业控制(Picontrol),最后一千年和历史模拟中以及观察数据中的interdecadal GMST可变性。我们发现,几个CMIP6模拟显示比前几代模型模拟的GMST Interdecadal可变性更多。尽管如此,我们发现CMIP6 Picontrol模拟100年趋势永远不会超过最大观察到的变暖趋势。此外,尚未加强皮科尔仿真中的Interdecadal GMST变异与高纬度和东太平洋的区域可变性有关,而仪器数据的Interdecadal GMST可变异性和外部强制的历史模拟更全球相干,并且与热带深度的可变性有关对流区域。

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