气候变化领域集成服务门户(CCPortal): Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and their radiative forcing

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DOI	10.5194/acp-21-535-2021
	Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and their radiative forcing
	Kloss C.; Berthet G.; Sellitto P.; Ploeger F.; Taha G.; Tidiga M.; Eremenko M.; Bossolasco A.; Jégou F.; Renard J.-B.; Legras B.
发表日期	2021
ISSN	1680-7316
起始页码	535
结束页码	560
卷号	21 期号:1
英文摘要	In June 2019 a stratospheric eruption occurred at Raikoke (48° N, 153° E). Satellite observations show the injection of ash and SO2 into the lower stratosphere and an early entrainment of the plume into a cyclone. Following the Raikoke eruption, stratospheric aerosol optical depth (sAOD) values increased in the whole Northern Hemisphere and tropics and remained enhanced for more than 1 year, with peak values at 0.040 (short-wavelength, high northern latitudes) to 0.025 (short-wavelength, Northern Hemisphere average). Discrepancies between observations and global model simulations indicate that ash may have influenced the extent and evolution of the sAOD. Top of the atmosphere radiative forcings are estimated at values between-0:3 and-0:4Wm-2 (clear-sky) and of-0:1 to-0:2Wm-2 (all-sky), comparable to what was estimated for the Sarychev eruption in 2009. Almost simultaneously two significantly smaller stratospheric eruptions occurred at Ulawun (5° S, 151° E) in June and August. Aerosol enhancements from the Ulawun eruptions mainly had an impact on the tropics and Southern Hemisphere. The Ulawun plume circled the Earth within 1 month in the tropics. Peak shorter-wavelength sAOD values at 0.01 are found in the tropics following the Ulawun eruptions and a radiative forcing not exceeding-0:15 (clear-sky) and-0:05 (all-sky). Compared to the Canadian fires (2017), Ambae eruption (2018), Ulawun (2019) and the Australian fires (2019/2020), the highest sAOD and radiative forcing values are found for the Raikoke eruption. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; aerosol property; atmospheric plume; optical depth; radiative forcing; stratosphere; volcanic eruption; Kuril Islands; Matua; Russian Federation; Sakhalin; Sarychev Volcano
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247226
作者单位	Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Cnrs Umr 7328, Université d'Orléans, Orléans, France; Laboratoire Interuniversitaire des Systèmes Atmosphériques, Umr Cnrs 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France; Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK-7), Jülich, Germany; Institute for Atmospheric and Environmental Research, University of Wuppertal, Wuppertal, Germany; Universities Space Research Association, Greenbelt, MD, United States; Nasa Goddard Space Flight Center, Greenbelt, MD, United States; Laboratoire de Météorologie Dynamique, Cnrs Umr 8539, ENS-PSL/Sorbonne Université/École Polytechnique, Paris, France
推荐引用方式 GB/T 7714	Kloss C.,Berthet G.,Sellitto P.,et al. Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and their radiative forcing[J],2021,21(1).
APA	Kloss C..,Berthet G..,Sellitto P..,Ploeger F..,Taha G..,...&Legras B..(2021).Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and their radiative forcing.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(1).
MLA	Kloss C.,et al."Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and their radiative forcing".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.1(2021).