气候变化领域集成服务门户(CCPortal): CO2-induced heat source changes over the Tibetan Plateau in boreal summer-Part I: the total effects of increased CO2

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DOI	10.1007/s00382-020-05353-9
	CO2-induced heat source changes over the Tibetan Plateau in boreal summer-Part I: the total effects of increased CO2
	Qu X.; Huang G.; Zhu L.
发表日期	2020
ISSN	0930-7575
起始页码	1793
结束页码	1807
卷号	55
英文摘要	The concentration of CO2 in the atmosphere has been increasing, but its effects on the heat source (HS) over the Tibetan Plateau (TP) are unclear. Aimed at understanding these effects, at first, present study evaluated the CMIP5 (phase 5 of the Coupled Model Intercomparison Project) models and found that their multi-model ensemble (MME) reproduces the spatial pattern of the HS over the TP during June–September (hereafter JJAS) in observation reasonably well. Then, we used the MME to investigate the response of the JJAS HS over the TP to increased CO2. In response to increased CO2, the JJAS HS increases significantly. In terms of the response pattern and TP-averaged results, the increase in HS is mainly contributed by the latent heating (LH), which is due to moisture increases (with the lower level stronger than the upper level) and evaporation intensification led by CO2 change. The leading two intermodel spreads feature a nearly uniform structure and a central-southeastern TP dipole structure, respectively, and account for half of the total intermodel variance. The latent heating is mainly responsible for the spreads. The intensified radiative cooling of the atmosphere slightly dampen the TP-averaged HS increases. Over the TP, when CO2 increases, the atmospheric column above warms. Accordingly, the net longwave radiation flux out of the atmosphere column enhances, resulting in the intensified radiative cooling over the TP. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	CO2 increase; Heat source; The Tibetan Plateau
语种	英语
scopus关键词	carbon dioxide; climate modeling; ensemble forecasting; evaporation; heat source; induced response; latent heat flux; spatial analysis; summer; China; Qinghai-Xizang Plateau
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145339
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, Beijing, 100029, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; School of Atmospheric Sciences/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province/Joint Laboratory of Climate and Environment Change, Chengdu University of Information Technology, Chengdu, 610225, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Qu X.,Huang G.,Zhu L.. CO2-induced heat source changes over the Tibetan Plateau in boreal summer-Part I: the total effects of increased CO2[J],2020,55.
APA	Qu X.,Huang G.,&Zhu L..(2020).CO2-induced heat source changes over the Tibetan Plateau in boreal summer-Part I: the total effects of increased CO2.Climate Dynamics,55.
MLA	Qu X.,et al."CO2-induced heat source changes over the Tibetan Plateau in boreal summer-Part I: the total effects of increased CO2".Climate Dynamics 55(2020).