| DOI: | 10.1002/2014GL060349
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| 论文题名: | Climate impacts of changing aerosol emissions since 1996 |
| 作者: | Kühn T.; Partanen A.-I.; Laakso A.; Lu Z.; Bergman T.; Mikkonen S.; Kokkola H.; Korhonen H.; Räisänen P.; Streets D.G.; Romakkaniemi S.; Laaksonen A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9986
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| EISSN: | 1944-9717
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| 出版年: | 2014
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| 卷: | 41, 期:13 | | 起始页码: | 4711
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| 结束页码: | 4718
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| 语种: | 英语
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| 英文关键词: | aerosol emissions
; black carbon
; warming hiatus
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| Scopus关键词: | Absorption cooling
; Atmospheric radiation
; Emission control
; Global warming
; Aerosol emissions
; Black carbon
; Cloudy conditions
; Emission reduction
; Global temperatures
; Radiative effects
; Radiative forcings
; warming hiatus
; Aerosols
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| 英文摘要: | Increases in Asian aerosol emissions have been suggested as one possible reason for the hiatus in global temperature increase during the past 15 years. We study the effect of sulphur and black carbon (BC) emission changes between 1996 and 2010 on the global energy balance. We find that the increased Asian emissions have had very little regional or global effects, while the emission reductions in Europe and the U.S. have caused a positive radiative forcing. In our simulations, the global-mean aerosol direct radiative effect changes by 0.06 W/m2 during 1996 to 2010, while the effective radiative forcing (ERF) is 0.42 W/m2. The rather large ERF arises mainly from changes in cloudiness, especially in Europe. In Asia, the BC warming due to sunlight absorption has largely offset the cooling caused by sulphate aerosols. Asian BC concentrations have increased by a nearly constant fraction at all altitudes, and thus, they warm the atmosphere also in cloudy conditions. Key Points Asian aerosol emissions cannot explain the 16 year hiatus in global warming The warming effect of black carbon has offset sulfate cooling ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904081630&doi=10.1002%2f2014GL060349&partnerID=40&md5=d05da4fd824566266383c0359880d7b0
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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/7250
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Applied Physics, University of Eastern Finland, Kuopio, Finland
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| Recommended Citation: | |
Kühn T.,Partanen A.-I.,Laakso A.,et al. Climate impacts of changing aerosol emissions since 1996[J]. Geophysical Research Letters,2014-01-01,41(13).
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