| DOI: | 10.1002/2016GL069529
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| 论文题名: | Ice-nucleating particle emissions from photochemically aged diesel and biodiesel exhaust |
| 作者: | Schill G.P.; Jathar S.H.; Kodros J.K.; Levin E.J.T.; Galang A.M.; Friedman B.; Link M.F.; Farmer D.K.; Pierce J.R.; Kreidenweis S.M.; DeMott P.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9658
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| EISSN: | 1944-9389
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| 出版年: | 2016
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| 卷: | 43, 期:10 | | 起始页码: | 5524
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| 结束页码: | 5531
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| 语种: | 英语
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| 英文关键词: | black carbon
; clouds
; diesel
; ice nucleation
; mixed phase
; PAM
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| Scopus关键词: | Biodiesel
; Chemical detection
; Climate models
; Clouds
; Diesel engines
; Diesel fuels
; Nucleation
; Parameterization
; Pulse amplitude modulation
; Black carbon
; Chemical transport models
; Diesel
; Global climate model
; Ice nucleation
; Mixed phase
; Northern Hemispheres
; Particle emissions
; Ice
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| 英文摘要: | Immersion-mode ice-nucleating particle (INP) concentrations from an off-road diesel engine were measured using a continuous-flow diffusion chamber at −30°C. Both petrodiesel and biodiesel were utilized, and the exhaust was aged up to 1.5 photochemically equivalent days using an oxidative flow reactor. We found that aged and unaged diesel exhaust of both fuels is not likely to contribute to atmospheric INP concentrations at mixed-phase cloud conditions. To explore this further, a new limit-of-detection parameterization for ice nucleation on diesel exhaust was developed. Using a global-chemical transport model, potential black carbon INP (INPBC) concentrations were determined using a current literature INPBC parameterization and the limit-of-detection parameterization. Model outputs indicate that the current literature parameterization likely overemphasizes INPBC concentrations, especially in the Northern Hemisphere. These results highlight the need to integrate new INPBC parameterizations into global climate models as generalized INPBC parameterizations are not valid for diesel exhaust. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973124353&doi=10.1002%2f2016GL069529&partnerID=40&md5=576036af411f1cd2786af819d97cb0df
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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/10621
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO, United States
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| Recommended Citation: | |
Schill G.P.,Jathar S.H.,Kodros J.K.,et al. Ice-nucleating particle emissions from photochemically aged diesel and biodiesel exhaust[J]. Geophysical Research Letters,2016-01-01,43(10).
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