Surface sulfur measurements on stratospheric particles

Mackinnon, Ian D.R. & Mogk, David W. (1985) Surface sulfur measurements on stratospheric particles. Geophysical Research Letters, 12(2), pp. 93-96.

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The surface chemistries of three particulate samples collected from the lower stratosphere have been determined using a Scanning Auger Microprobe (SAM). These samples are typical of the most abundant natural and anthropogenic particles observed within the stratosphere in the >2µm diameter size fraction. Successive sputtering and analysis below the first few adsorbed monolayers of all particles shows the presence of a thin <150A) sulphur layer. These sulphur regions probably formed by surface reaction of sulphur-rich aerosols with each particle within the stratosphere. Settling rate calculations show that a typical sphere (10µm diameter) may reside within the aerosol layer for ~20 days and thus, provide a qualitative guide to surface sulphur reaction rates.

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ID Code: 59929
Item Type: Journal Article
Refereed: Yes
Additional Information: WOS:A1985ABP1000006
Keywords: stratospheric particles, sulfur aerosols, surface analysis, Auger Electron Spectroscopy
DOI: 10.1029/GL012i002p00093
ISSN: 0094-8276
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Aerosols (040101)
Divisions: Current > Institutes > Institute for Future Environments
Copyright Owner: Copyright 1985 by the American Geophysical Union.
Deposited On: 27 May 2013 22:22
Last Modified: 28 May 2013 20:03

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