气候变化领域集成服务门户(CCPortal): Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes

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DOI	10.1029/2020GL088337
	Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes
	Visioni D.; MacMartin D.G.; Kravitz B.; Richter J.H.; Tilmes S.; Mills M.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:12
英文摘要	By reflecting some incoming solar radiation, stratospheric aerosol intervention using SO2 would reduce global mean temperature. Previous research has shown that multiple injection latitudes can be used to maintain not only global mean temperature, but also interhemispheric and equator-to-pole temperature gradients. However, the regional climate response depends not only on where the SO2 is injected, but also on when. We show here that even with these same objectives and same choices of latitudes, injecting in only one season instead of continuously throughout the year results in significant differences in regional climate, for instance in the magnitude of precipitation changes over India. The differential outcomes highlight the potential for underlying trade-offs, with different choices regarding deployment leading to a different distribution of benefits or harms. This aspect of climate engineering should be considered in developing governance and emphasizes the need for a deeper understanding of the mechanisms underlying the regional responses. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Economic and social effects; Different distributions; Geoengineering; Global-mean temperature; Multiple injections; Precipitation change; Regional climate; Regional response; Stratospheric aerosols; Aerosols; aerosol; air temperature; global warming; precipitation assessment; regional climate; seasonality; solar radiation; stratosphere; sulfur dioxide; India
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170246
作者单位	Sibley School for Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States; Department of Earth and Atmospheric Science, Indiana University, Bloomington, IN, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Atmospheric Chemistry, Observations, and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Visioni D.,MacMartin D.G.,Kravitz B.,et al. Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes[J],2020,47(12).
APA	Visioni D.,MacMartin D.G.,Kravitz B.,Richter J.H.,Tilmes S.,&Mills M.J..(2020).Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes.Geophysical Research Letters,47(12).
MLA	Visioni D.,et al."Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes".Geophysical Research Letters 47.12(2020).