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DOI	10.1016/j.dynatmoce.2021.101206
	Resolution of the atmospheric model matters for the Northern Hemisphere Mid-Holocene climate
	Lohmann G.; Wagner A.; Prange M.
发表日期	2021
ISSN	03770265
卷号	93
英文摘要	This study evaluates the dependence of simulated surface air temperatures on model resolution and orography for the mid-Holocene. Sensitivity experiments with the atmospheric general circulation model ECHAM5 are performed with low (∼3.75°, 19 vertical levels) and high (∼1.1°, 31 vertical levels) resolution. Results are compared to the respective preindustrial runs. It is found that the large-scale temperature anomalies for the mid-Holocene (compared to preindustrial) are significantly different in the low- and high-resolution versions. For boreal winter, differences are mainly related to circulation changes caused by the response to thermal forcing in conjunction with orographic resolution. For summer, shortwave cloud radiative forcing emerges as an important factor. The anomaly differences (low minus high resolution version) in the Northern Hemisphere are regionally as large as the anomalous mid-Holocene temperature signals. Furthermore, they depend on the applied surface boundary conditions. We conclude that the resolution matters for the Northern Hemisphere response in mid-Holocene simulations, which should be taken into account in model-model and data-model comparisons. © 2021 The Authors
英文关键词	Mid-Holocene; Paleoclimate modeling; Resolution
语种	英语
scopus关键词	Atmospheric radiation; Atmospheric general circulation models; Atmospheric model; Circulation changes; Cloud radiative forcing; Northern Hemispheres; Surface air temperatures; Temperature anomaly; Temperature signal; Climate models; air temperature; atmospheric modeling; climate modeling; Holocene; Northern Hemisphere; paleoclimate
来源期刊	Dynamics of Atmospheres and Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178245
作者单位	Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bussestraße 24, Bremerhaven, 27570, Germany; MARUM – Zentrum für Marine Umweltwissenschaften, Universität Bremen, Leobener Str. 8, Bremen, 28359, Germany
推荐引用方式 GB/T 7714	Lohmann G.,Wagner A.,Prange M.. Resolution of the atmospheric model matters for the Northern Hemisphere Mid-Holocene climate[J],2021,93.
APA	Lohmann G.,Wagner A.,&Prange M..(2021).Resolution of the atmospheric model matters for the Northern Hemisphere Mid-Holocene climate.Dynamics of Atmospheres and Oceans,93.
MLA	Lohmann G.,et al."Resolution of the atmospheric model matters for the Northern Hemisphere Mid-Holocene climate".Dynamics of Atmospheres and Oceans 93(2021).