| DOI: | 10.1002/grl.50441
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| 论文题名: | Natural aerosol direct and indirect radiative effects |
| 作者: | Rap A.; Scott C.E.; Spracklen D.V.; Bellouin N.; Forster P.M.; Carslaw K.S.; Schmidt A.; Mann G.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8900
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| EISSN: | 1944-8631
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| 出版年: | 2013
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| 卷: | 40, 期:12 | | 起始页码: | 3297
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| 结束页码: | 3301
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| 语种: | 英语
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| 英文关键词: | natural aerosol
; radiative effect
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| Scopus关键词: | Dimethyl sulfide
; Emission source strength
; Natural sources
; Radiative balance
; Radiative effects
; Radiative efficiency
; Radiative transfer model
; Small particles
; Atmospheric aerosols
; Sulfur compounds
; Volcanoes
; Solar radiation
; aerosol composition
; aerosol property
; albedo
; dimethylsulfide
; radiation balance
; radiative forcing
; radiative transfer
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| 英文摘要: | Natural aerosol plays a significant role in the Earth's system due to its ability to alter the radiative balance of the Earth. Here we use a global aerosol microphysics model together with a radiative transfer model to estimate radiative effects for five natural aerosol sources in the present-day atmosphere: dimethyl sulfide (DMS), sea-salt, volcanoes, monoterpenes, and wildfires. We calculate large annual global mean aerosol direct and cloud albedo effects especially for DMS-derived sulfate (-0.23 Wm-2 and -0.76 Wm-2, respectively), volcanic sulfate (-0.21 Wm-2 and -0.61 Wm-2) and sea-salt (-0.44 Wm-2 and -0.04 Wm -2). The cloud albedo effect responds nonlinearly to changes in emission source strengths. The natural sources have both markedly different radiative efficiencies and indirect/direct radiative effect ratios. Aerosol sources that contribute a large number of small particles (DMS-derived and volcanic sulfate) are highly effective at influencing cloud albedo per unit of aerosol mass burden. Key Points New, consistent estimates of natural aerosol radiative effects are given We find substantial variability in natural aerosol radiative efficiency Non-linear sensitivity of cloud albedo effects to emission source strength ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880525843&doi=10.1002%2fgrl.50441&partnerID=40&md5=059ae58bb32bec4e7fc5322bc928e681
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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/6164
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| Appears in Collections: | 气候减缓与适应
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作者单位: | School of Earth and Environment, University of Leeds, Leeds, United Kingdom
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| Recommended Citation: | |
Rap A.,Scott C.E.,Spracklen D.V.,et al. Natural aerosol direct and indirect radiative effects[J]. Geophysical Research Letters,2013-01-01,40(12).
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