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DOI | 10.1175/JCLI-D-17-0620.1 |
Climate Response to Aerosol Geoengineering: A Multimethod Comparison | |
Muri, Helene1,2; Tjiputra, Jerry3; Ottera, Odd Helge3; Adakudlu, Muralidhar3; Lauvset, Siv K.3; Grini, Alf4; Schulz, Michael4; Niemeier, Ulrike5; Kristjansson, Jon Egill1 | |
2018-08-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:16页码:6319-6340 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; Germany |
英文摘要 | Considering the ambitious climate targets of the Paris Agreement to limit global warming to 2 degrees C, with aspirations of even 1.5 degrees C, questions arise on how to achieve this. Climate geoengineering has been proposed as a potential tool to minimize global harm from anthropogenic climate change. Here, an Earth system model is used to evaluate the climate response when transferring from a high CO2 forcing scenario, RCP8.5, to a middle-of-the-road forcing scenario, like RCP4.5, using aerosol geoengineering. Three different techniques are considered: stratospheric aerosol injections (SAI), marine sky brightening (MSB), and cirrus cloud thinning (CCT). The climate states appearing in the climate geoengineering cases are found to be closer to RCP4.5 than RCP8.5 and many anthropogenic global warming symptoms are alleviated. All three techniques result in comparable global mean temperature evolutions. However, there are some notable differences in other climate variables due to the nature of the forcings applied. CCT acts mainly on the longwave part of the radiation budget, as opposed to MSB and SAI acting in the shortwave. This yields a difference in the response, particularly in the hydrological cycle. The responses in sea ice, sea level, ocean heat, and circulation, as well as the carbon cycle, are furthermore compared. Sudden termination of the aerosol injection geoengineering shows that the climate very rapidly (within two decades) reverts to the path of RCP8.5, questioning the sustainable nature of such climate geoengineering, and simultaneous mitigation during any such form of climate geoengineering would be needed to limit termination risks. |
英文关键词 | Atmosphere Ocean Clouds North Atlantic Oscillation Carbon cycle General circulation models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000438189800006 |
WOS关键词 | SOLAR-RADIATION MANAGEMENT ; STRATOSPHERIC AEROSOL ; IRRADIANCE REDUCTION ; CLOUD ; INJECTION ; IMPACT ; ALBEDO ; SIMULATIONS ; OCEAN |
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/20715 |
专题 | 气候变化 |
作者单位 | 1.Univ Oslo, Sect Meteorol & Oceanog, Dept Geosci, Oslo, Norway; 2.Norwegian Univ Sci & Technol, Ind Ecol Program, Dept Energy & Proc Engn, Trondheim, Norway; 3.Bjerknes Ctr Climate Res, Uni Res Climate, Bergen, Norway; 4.Meteorol Inst, Oslo, Norway; 5.Max Planck Inst Meteorol, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Muri, Helene,Tjiputra, Jerry,Ottera, Odd Helge,et al. Climate Response to Aerosol Geoengineering: A Multimethod Comparison[J]. JOURNAL OF CLIMATE,2018,31(16):6319-6340. |
APA | Muri, Helene.,Tjiputra, Jerry.,Ottera, Odd Helge.,Adakudlu, Muralidhar.,Lauvset, Siv K..,...&Kristjansson, Jon Egill.(2018).Climate Response to Aerosol Geoengineering: A Multimethod Comparison.JOURNAL OF CLIMATE,31(16),6319-6340. |
MLA | Muri, Helene,et al."Climate Response to Aerosol Geoengineering: A Multimethod Comparison".JOURNAL OF CLIMATE 31.16(2018):6319-6340. |
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