DOI: 10.1029/2017JD028033
Scopus记录号: 2-s2.0-85048961714
论文题名: Marine and Terrestrial Organic Ice-Nucleating Particles in Pristine Marine to Continentally Influenced Northeast Atlantic Air Masses
作者: McCluskey C.S. ; Ovadnevaite J. ; Rinaldi M. ; Atkinson J. ; Belosi F. ; Ceburnis D. ; Marullo S. ; Hill T.C.J. ; Lohmann U. ; Kanji Z.A. ; O'Dowd C. ; Kreidenweis S.M. ; DeMott P.J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 11 起始页码: 6196
结束页码: 6212
语种: 英语
英文关键词: ice-nucleating particles
; marine ice-nucleating particle parameterization
; marine ice-nucleating particles
; marine organic aerosol
; sea spray aerosol
Scopus关键词: aerosol
; air mass
; algal bloom
; cloud
; concentration (composition)
; heating
; hydrogen peroxide
; ice
; marine atmosphere
; nucleation
; parameterization
; phytoplankton
; sampler
; Atlantic Ocean
; Atlantic Ocean (Northeast)
; Connacht
; Galway [(CNT) Connacht]
; Ireland
; Mace Head
英文摘要: Sea spray aerosol (SSA) generated by bubble bursting at the ocean surface is an important component of aerosol-cloud interactions over remote oceans, providing the atmosphere with ice-nucleating particles (INPs) or particles required for heterogeneous ice nucleation. Studies have shown that organic INPs are emitted during phytoplankton blooms, but changes in INP number concentrations (nINPs) due to ocean biological activity have not been directly demonstrated in natural SSA. In this study, a clean sector sampler was used to differentiate ice nucleation and composition of pristine SSA from terrestrial aerosol at the Mace Head Research Station in August 2015. Average nINPs active at −15 °C (nINPs,−15 °C) were 0.0011 L−1, and large variability (up to a factor of 200) was observed for INPs active warmer than −22 °C. Highest nINPs in the clean sector occurred during a period of elevated marine organic aerosol from offshore biological activity (M1, nINPs,−15 °C = 0.0077 L−1). A peak in nINPs was also observed in terrestrial organic aerosol (T1, nINPs,−15 °C = 0.0076 L−1). The impacts of heating and hydrogen peroxide digestion on nINPs indicate that INPs at Mace Head Research Station were largely organic and that INPs observed during M1 and T1 were biological (i.e., protein containing). Complexities of predicting increases in nINPs due to offshore biological activity are explored. A parameterization for pristine SSA INPs over the North Atlantic Ocean was developed, illustrating that SSA is associated with a factor of 1,000 fewer ice-nucleating sites per surface area of aerosol compared to mineral dust. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113702
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Advanced Study Program, National Center for Atmospheric Research, Boulder, CO, United States; School of Physics, National University of Ireland Galway, Galway, Ireland; Institute of Atmospheric Sciences and Climate, CNR, Bologna, Italy; Institute of Atmospheric and Climate Science, ETH, Zurich, Switzerland; Centro Ricerche Frascati, ENEA, Frascati, Italy; Institute of Atmospheric Sciences and Climate, CNR, Rome, Italy
Recommended Citation:
McCluskey C.S.,Ovadnevaite J.,Rinaldi M.,et al. Marine and Terrestrial Organic Ice-Nucleating Particles in Pristine Marine to Continentally Influenced Northeast Atlantic Air Masses[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(11)