DOI: 10.1002/2016GL069070
论文题名: OCEANFILMS-2: Representing coadsorption of saccharides in marine films and potential impacts on modeled marine aerosol chemistry
作者: Burrows S.M. ; Gobrogge E. ; Fu L. ; Link K. ; Elliott S.M. ; Wang H. ; Walker R.
刊名: Geophysical Research Letters
ISSN: 0094-8815
EISSN: 1944-8546
出版年: 2016
卷: 43, 期: 15 起始页码: 8306
结束页码: 8313
语种: 英语
英文关键词: marine aerosol
; marine biofilms
; organic aerosol
; sea spray aerosol
; sea surface microlayer
; surfactant interactions
Scopus关键词: Fourier transform infrared spectroscopy
; Glucose
; Monolayers
; Surface active agents
; Surface waters
; Marine aerosols
; Marine biofilms
; Organic aerosol
; Sea spray aerosols
; Sea surface microlayer
; Surfactant interaction
; Aerosols
英文摘要: Here we show that the addition of chemical interactions between soluble monosaccharides and an insoluble lipid surfactant monolayer improves agreement of modeled sea spray chemistry with observed marine aerosol chemistry. In particular, the alkane:hydroxyl mass ratio in modeled sea spray organic matter is reduced from a median of 2.73 to a range of 0.41–0.69, reducing the discrepancy with previous Fourier transform infrared spectroscopy (FTIR) observations of clean marine aerosol (ratio: 0.24–0.38). The overall organic fraction of submicron sea spray also increases, allowing organic mass fractions in the range 0.5–0.7 for submicron sea spray particles over highly active phytoplankton blooms. Sum frequency generation experiments support the modeling approach by demonstrating that soluble monosaccharides can strongly adsorb to a lipid monolayer likely via Coulomb interactions under appropriate conditions. These laboratory findings motivate further research to determine the relevance of coadsorption mechanisms for real-world, sea spray aerosol production. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983538508&doi=10.1002%2f2016GL069070&partnerID=40&md5=9da1c2a010870b7a3b3d21896258ff71
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9778
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: Atmospheric Science and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States
Recommended Citation:
Burrows S.M.,Gobrogge E.,Fu L.,et al. OCEANFILMS-2: Representing coadsorption of saccharides in marine films and potential impacts on modeled marine aerosol chemistry[J]. Geophysical Research Letters,2016-01-01,43(15).