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DOI10.1029/2018JD028285
Stratospheric Response in the First Geoengineering Simulation Meeting Multiple Surface Climate Objectives
Jadwiga, H. Richter1; Tilmes, Simone1,2; Glanville, Anne1,2; Kravitz, Ben3; MacMartin, Douglas G.4,5; Mills, Michael J.2; Simpson, Isla R.1; Vitt, Francis2; Tribbia, Joseph J.1; Lamarque, Jean-Francois1
2018-06-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2018
卷号123期号:11页码:5762-5782
文章类型Article
语种英语
国家USA
英文摘要

We describe here changes in stratospheric dynamics and chemistry in a first century-long sulfate aerosol geoengineering simulation in which the mean surface temperature and the interhemispheric and equator-to-pole surface temperature gradients were kept near their 2020 levels despite the RCP8.5 emission scenario. Simulations were carried out with the Community Earth System Model, version 1 with the Whole Atmosphere Community Climate Model as its atmospheric component [CESM1(WACCM)] coupled to a feedback algorithm controlling the magnitude of sulfur dioxide (SO2) injections at four injection latitudes. We find that, throughout the entire geoengineering simulation, the lower stratospheric temperatures increase by similar to 0.19 K per Tg SO2 injection per year or similar to 10 K with similar to 40 Tg SO2/year total SO2 injection. These temperature changes are associated with a strengthening of the polar jets in the stratosphere and weakening of the mean zonal wind in the lower stratosphere subtropics and throughout the troposphere, associated with weaker storm track activity. In the geoengineering simulation the quasi-biennial oscillation of the tropical lower stratospheric winds remains close to the presently observed quasi-biennial oscillation, even for large amounts of SO2 injection. Water vapor in the stratosphere increases substantially: by 25% with similar to 20 Tg SO2/year annual injection and by up to 90% with a similar to 40 Tg SO2/year injection. Stratospheric column ozone in the geoengineering simulation is predicted to recover to or supersede preozone hole conditions by the end of the century.


英文关键词geoengineering stratosphere climate sulfate aerosols
领域气候变化
收录类别SCI-E
WOS记录号WOS:000436110800002
WOS关键词QUASI-BIENNIAL OSCILLATION ; CALIFORNIA WINTER PRECIPITATION ; NORTH-ATLANTIC JET ; MODEL ; CIRCULATION ; AEROSOLS ; SULFATE ; SYSTEM ; PERTURBATIONS ; SENSITIVITY
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/32914
专题气候变化
作者单位1.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA;
2.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA;
3.Pacific Northwest Natl Lab, Richland, WA USA;
4.Cornell Univ, Mech & Aerosp Engn, Ithaca, NY USA;
5.CALTECH, Dept Comp & Math Sci, Pasadena, CA 91125 USA
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Jadwiga, H. Richter,Tilmes, Simone,Glanville, Anne,et al. Stratospheric Response in the First Geoengineering Simulation Meeting Multiple Surface Climate Objectives[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(11):5762-5782.
APA Jadwiga, H. Richter.,Tilmes, Simone.,Glanville, Anne.,Kravitz, Ben.,MacMartin, Douglas G..,...&Lamarque, Jean-Francois.(2018).Stratospheric Response in the First Geoengineering Simulation Meeting Multiple Surface Climate Objectives.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(11),5762-5782.
MLA Jadwiga, H. Richter,et al."Stratospheric Response in the First Geoengineering Simulation Meeting Multiple Surface Climate Objectives".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.11(2018):5762-5782.
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