globalchange  > 科学计划与规划
DOI: 10.1002/2016GL071042
论文题名:
Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall
作者: Ellis A.; Edwards R.; Saunders M.; Chakrabarty R.K.; Subramanian R.; Timms N.E.; van Riessen A.; Smith A.M.; Lambrinidis D.; Nunes L.J.; Vallelonga P.; Goodwin I.D.; Moy A.D.; Curran M.A.J.; van Ommen T.D.
刊名: Geophysical Research Letters
ISSN: 0094-8366
EISSN: 1944-8097
出版年: 2016
卷: 43, 期:22
起始页码: 11875
结束页码: 11883
语种: 英语
英文关键词: Antarctica ; black carbon ; ice core ; iron ; particle characteristics
Scopus关键词: Aerosols ; Aggregates ; Atmospheric aerosols ; Black coatings ; Coatings ; Energy dispersive spectroscopy ; Fog ; Glacial geology ; High resolution transmission electron microscopy ; Ice ; Iron ; Rain ; Transmission electron microscopy ; X ray spectroscopy ; Antarctica ; Atmospheric circulation ; Black carbon ; Black carbon aerosol ; Energy dispersive X ray spectroscopy ; Ice core ; Particle characteristics ; Particle morphologies ; Atmospheric chemistry
英文摘要: Black carbon (BC) aerosols are a large source of climate warming, impact atmospheric chemistry, and are implicated in large-scale changes in atmospheric circulation. Inventories of BC emissions suggest significant changes in the global BC aerosol distribution due to human activity. However, little is known regarding BC's atmospheric distribution or aged particle characteristics before the twentieth century. Here we investigate the prevalence and structural properties of BC particles in Antarctic ice cores from 1759, 1838, and 1930 Common Era (C.E.) using transmission electron microscopy and energy-dispersive X-ray spectroscopy. The study revealed an unexpected diversity in particle morphology, insoluble coatings, and association with metals. In addition to conventionally occurring BC aggregates, we observed single BC monomers, complex aggregates with internally, and externally mixed metal and mineral impurities, tar balls, and organonitrogen coatings. The results of the study show BC particles in the remote Antarctic atmosphere exhibit complexity that is unaccounted for in atmospheric models of BC. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004074714&doi=10.1002%2f2016GL071042&partnerID=40&md5=1d189adb2a8a0229570cae3b3938c2d1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9329
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: Physics and Astronomy, Curtin University, Perth, WA, Australia

Recommended Citation:
Ellis A.,Edwards R.,Saunders M.,et al. Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall[J]. Geophysical Research Letters,2016-01-01,43(22).
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