| DOI: | 10.1002/grl.50166
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| 论文题名: | Biogeochemical carbon coupling influences global precipitation in geoengineering experiments |
| 作者: | Fyfe J.C.; Cole J.N.S.; Arora V.K.; Scinocca J.F.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9343
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| EISSN: | 1944-9074
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| 出版年: | 2013
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| 卷: | 40, 期:3 | | 起始页码: | 651
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| 结束页码: | 655
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| 语种: | 英语
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| 英文关键词: | Geoengineering
; global precipitation
; solar radiation management
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| Scopus关键词: | Biogeochemistry
; Carbon dioxide
; Climate models
; Experiments
; Global warming
; Lasers
; Plants (botany)
; Precipitation (meteorology)
; Solar radiation
; Sun
; Biogeochemical interactions
; Earth system model
; Evaporative process
; Geoengineering
; Global precipitation
; Leaves of plants
; Primary effects
; Radiation management
; Carbon
; carbon cycle
; climate modeling
; evaporation
; global change
; precipitation (chemistry)
; solar radiation
; transpiration
; tree
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| 英文摘要: | Climate model studies in which CO2-induced global warming is offset by engineered decreases of incoming solar radiation are generally robust in their prediction of reduced amounts of global precipitation. While this precipitation response has been explained on the basis of changes in net radiation controlling evaporative processes at the surface, there has been relatively little consideration of the relative role of biogeochemical carbon-cycle interactions. To address this issue, we employ an Earth System Model that includes oceanic and terrestrial carbon components to isolate the impact of biogeochemical carbon coupling on the precipitation response in geoengineering experiments for two types of solar radiation management. We show that carbon coupling is responsible for a large fraction of the global precipitation reduction in such geoengineering experiments and that the primary effect comes from reduced transpiration through the leaves of plants and trees in the terrestrial component of the carbon cycle due to elevated CO2. Our results suggest that biogeochemical interactions are as important as changes in net radiation and that climate models that do not account for such carbon coupling may significantly underestimate precipitation reductions in a geoengineered world. Key Points Biogeochemical carbon-cycle interactions important in geoengineering experiments Carbon coupling accounts for large fraction of global precipitation reductions Models not accounting for such coupling underestimate precipitation reductions ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878174919&doi=10.1002%2fgrl.50166&partnerID=40&md5=c02ec8319b7aee2ec5b40796956e8a74
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6607
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Canadian Centre for Climate Modelling and Analysis, Environment Canada, University of Victoria, P.O. Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada
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| Recommended Citation: | |
Fyfe J.C.,Cole J.N.S.,Arora V.K.,et al. Biogeochemical carbon coupling influences global precipitation in geoengineering experiments[J]. Geophysical Research Letters,2013-01-01,40(3).
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