| DOI: | 10.1002/2013GL058452
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| 论文题名: | Bistable effect of organic enrichment on sea spray radiative properties |
| 作者: | Vaishya A.; Ovadnevaite J.; Bialek J.; Jennings S.G.; Ceburnis D.; O'Dowd C.D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8290
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| EISSN: | 1944-8021
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| 出版年: | 2013
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| 卷: | 40, 期:24 | | 起始页码: | 6395
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| 结束页码: | 6398
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| 语种: | 英语
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| 英文关键词: | aerosol
; sea spray
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| Scopus关键词: | Aerosol optical depths
; Direct radiative forcing
; Hygroscopic growth factor
; Organic enrichment
; Radiative properties
; Sea spray
; Sea spray aerosols
; Top of atmospheres
; Aerosols
; Atmospheric aerosols
; Atmospheric radiation
; Budget control
; aerosol
; biosphere
; hygroscopicity
; light scattering
; marine ecosystem
; optical depth
; organic matter
; parameterization
; radiation budget
; radiative forcing
; relative humidity
; sea salt
; spray
; wind velocity
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| 英文摘要: | Primary-produced sea spray aerosol, typically comprising sea-salt, but also enriched with organic matter (OM) in biologically active oceanic regions, impacts the global radiative budget through contributions to aerosol optical depth. We show that sea spray light-scattering enhancement, f(RH), as a function of relative humidity (RH) is suppressed when enriched with OM. A new hygroscopic growth factor parameterization reveals a dual hygroscopicity state, flipping from high hygroscopicity and high f(RH) to low hygroscopicity and low f(RH) as the OM mixing volume percentage exceeds ∼ 55% in sea spray. Under elevated wind speeds, this affects the Top-of-atmosphere direct radiative forcing (ΔF) by reducing the cooling contribution of sea spray by ∼ 5.5 times compared to pure sea-salt spray. These results suggest a positive feedback coupling between the marine biosphere, sea spray aerosol, and the direct radiative budget. ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84890328310&doi=10.1002%2f2013GL058452&partnerID=40&md5=820acf34fd120d71799cead3e92a3d85
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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/5554
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| Appears in Collections: | 气候减缓与适应
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作者单位: | School of Physics, Centre for Climate and Air Pollution Studies, National University of Ireland Galway, University Rd., Galway, Ireland
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| Recommended Citation: | |
Vaishya A.,Ovadnevaite J.,Bialek J.,et al. Bistable effect of organic enrichment on sea spray radiative properties[J]. Geophysical Research Letters,2013-01-01,40(24).
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