| DOI: | 10.1002/2014GL059524
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| 论文题名: | Cloud fraction mediates the aerosol optical depth-cloud top height relationship |
| 作者: | Gryspeerdt E.; Stier P.; Grandey B.S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10054
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| EISSN: | 1944-9785
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| 出版年: | 2014
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| 卷: | 41, 期:10 | | 起始页码: | 3622
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| 结束页码: | 3627
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| 语种: | 英语
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| 英文关键词: | aerosol
; aerosol-cloud interactions
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| Scopus关键词: | Aerosols
; Earth sciences
; Geophysics
; Aerosol effect
; Aerosol optical depths
; Aerosol-cloud interaction
; Cloud fraction
; Cloud top heights
; Cloud top pressure
; Convective clouds
; Strong correlation
; Atmospheric aerosols
; aerosol property
; convective cloud
; height determination
; humidity
; meteorology
; optical depth
; satellite data
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| 英文摘要: | The observed strong link between aerosol optical depth (τ) and cloud top pressure (ptop) has frequently been interpreted as the invigoration of convective clouds by aerosol, with increased τ being strongly correlated with decreases in ptop (increases in cloud top height). A strong correlation between τ and cloud fraction (fc) has also been observed. Using satellite-retrieved data, here we show that p top is also strongly correlated to fc, and when combined with the strong sensitivity between fc and τ, a large proportion of the relationship between ptop and τcan be reconstructed. Given the uncertainties about the influence of aerosol-cloud interactions on the τ-fc relationship, this suggests that a large fraction of the τ-ptop correlation may not be due to aerosol effects. Influences such as aerosol humidification and meteorology play an important role and should therefore be considered in studies of aerosol-cloud interactions. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84900934922&doi=10.1002%2f2014GL059524&partnerID=40&md5=b2f7243073cb4faf2cf75d0b879f5a79
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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/7318
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Physics, University of Oxford, Oxford, United Kingdom
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| Recommended Citation: | |
Gryspeerdt E.,Stier P.,Grandey B.S.. Cloud fraction mediates the aerosol optical depth-cloud top height relationship[J]. Geophysical Research Letters,2014-01-01,41(10).
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