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.
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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|Item Type:||Journal Article|
|Keywords:||stratospheric particles, sulfur aerosols, surface analysis, Auger Electron Spectroscopy|
|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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