Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD030237 |
Soil Moisture and Other Hydrological Changes in a Stratospheric Aerosol Geoengineering Large Ensemble | |
Cheng, Wei1; MacMartin, Douglas1; Dagon, Katherine2; Kravitz, Ben3,4; Tilmes, Simone5; Richter, Jadwiga H.2; Mills, Michael J.5; Simpson, Isla R.2 | |
2019-12-11 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA |
英文摘要 | Stratospheric sulfate aerosol geoengineering has been proposed as a potential strategy to reduce the impacts of climate change. Here we investigate the impact of stratospheric aerosol geoengineering on the terrestrial hydrological cycle. We use the Geoengineering Large Ensemble, which involves a 20-member ensemble of simulations using the Community Earth System Model with the Whole Atmosphere Community Climate Model, in which sulfur dioxide (SO2) was injected into the stratosphere at four different locations, to maintain global mean surface temperature, and also the interhemispheric and equator-to-pole temperature gradients at values representative of 2020 ("baseline") under the Representative Concentration Pathway 8.5. In our simulations, annual mean land precipitation and evapotranspiration (ET) increase by 12% each under Representative Concentration Pathway 8.5. Under the Geoengineering Large Ensemble, the hydrological cycle is suppressed compared to the baseline, with end-of-century decreases of 1.4% (12 +/- 5 mm/year) and 3.3% (18 +/- 2 mm/year) in global mean, annual mean precipitation, and ET over land, respectively. Geoengineering effectively maintains global mean soil moisture under a high CO2 scenario, although there is significant regional variability. Summertime soil moisture is reduced by 42 +/- 11 kg/m(2) (3.5%) and 27 +/- 16 kg/m(2) (2.1%) in India and the Amazon, respectively, which is dominated by the decrease in precipitation. We also compare these regional changes in soil moisture under the Geoengineering Large Ensemble with an equatorial-only SO2 injection case and find a similar sign in residual changes, although the magnitude of the changes is larger in the equatorial run. |
英文关键词 | geoengineering solar radiation management soil moisture GLENS |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000501964800001 |
WOS关键词 | IMPACTS ; DYNAMICS ; EVAPOTRANSPIRATION ; TRANSPIRATION ; PRECIPITATION ; EVAPORATION ; RUNOFF ; TRENDS |
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/225866 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Cornell Univ, Mech & Aerosp Engn, Ithaca, NY 14853 USA; 2.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA; 3.Indiana Univ, Dept Earth & Atmospher Sci, Bloomington, IN USA; 4.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA; 5.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Cheng, Wei,MacMartin, Douglas,Dagon, Katherine,et al. Soil Moisture and Other Hydrological Changes in a Stratospheric Aerosol Geoengineering Large Ensemble[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019. |
APA | Cheng, Wei.,MacMartin, Douglas.,Dagon, Katherine.,Kravitz, Ben.,Tilmes, Simone.,...&Simpson, Isla R..(2019).Soil Moisture and Other Hydrological Changes in a Stratospheric Aerosol Geoengineering Large Ensemble.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. |
MLA | Cheng, Wei,et al."Soil Moisture and Other Hydrological Changes in a Stratospheric Aerosol Geoengineering Large Ensemble".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019). |
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