气候变化领域集成服务门户(CCPortal): Equilibrium Climate after Spectral and Bolometric Irradiance Reduction in Grand Solar Minimum Simulations

CCPortal

DOI	10.3390/cli12010001
	Equilibrium Climate after Spectral and Bolometric Irradiance Reduction in Grand Solar Minimum Simulations
	Tartaglione, Nazario; Toniazzo, Thomas; Ottera, Odd Helge; Orsolini, Yvan
发表日期	2024
EISSN	2225-1154
起始页码	12
结束页码	1
卷号	12 期号:1
英文摘要	In this study, we use the Whole Atmosphere Community Climate Model, forced by present-day atmospheric composition and coupled to a Slab Ocean Model, to simulate the state of the climate under grand solar minimum forcing scenarios. Idealized experiments prescribe time-invariant solar irradiance reductions that are either uniform (percentage-wise) across the total solar radiation spectrum (TOTC) or spectrally localized in the ultraviolet (UV) band (SCUV). We compare the equilibrium condition of these experiments with the equilibrium condition of a control simulation, forced by perpetual solar maximum conditions. In SCUV, we observe large stratospheric cooling due to ozone reduction. In both the Northern Hemisphere (NH) and the Southern Hemisphere (SH), this is accompanied by a weakening of the polar night jet during the cold season. In TOTC, dynamically induced polar stratospheric cooling is observed in the transition seasons over the NH, without any ozone deficit. The global temperature cooling values, compared with the control climate, are 0.55 +/- 0.03 K in TOTC and 0.39 +/- 0.03 K in SCUV. The reductions in total meridional heat transport outside of the subtropics are similar in the two experiments, especially in the SH. Despite substantial differences in stratospheric forcing, similarities exist between the two experiments, such as cloudiness; meridional heating transport in the SH; and strong cooling in the NH during wintertime, although this cooling affects two different regions, namely, North America in TOTC and the Euro-Asian continent in SCUV.
英文关键词	solar activity; climate change projections; global models
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001149052700001
来源期刊	CLIMATE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298507
作者单位	Italian Institute for Environmental Protection & Research (ISPRA); Norwegian Research Centre (NORCE); Stockholm University; Bjerknes Centre for Climate Research; Norwegian University of Science & Technology (NTNU)
推荐引用方式 GB/T 7714	Tartaglione, Nazario,Toniazzo, Thomas,Ottera, Odd Helge,et al. Equilibrium Climate after Spectral and Bolometric Irradiance Reduction in Grand Solar Minimum Simulations[J],2024,12(1).
APA	Tartaglione, Nazario,Toniazzo, Thomas,Ottera, Odd Helge,&Orsolini, Yvan.(2024).Equilibrium Climate after Spectral and Bolometric Irradiance Reduction in Grand Solar Minimum Simulations.CLIMATE,12(1).
MLA	Tartaglione, Nazario,et al."Equilibrium Climate after Spectral and Bolometric Irradiance Reduction in Grand Solar Minimum Simulations".CLIMATE 12.1(2024).