Short Term Variability in Marine Atmospheric Dimethylsulphide Concentration

View/ Open
File version
Version of Record (VoR)
Author(s)
Ayers, GP
Gillett, RW
Ivey, JP
Schäfer, B
Gabric, A
Griffith University Author(s)
Year published
1995
Metadata
Show full item recordAbstract
Dimethylsulfide (DMS) concentrations measured twice per hour in marine boundary layer air at the Cape Grim baseline station exhibit high variability over timescales as short as several hours. Major sources of this variability are identified as a diurnal cycle associated with the daytime destruction of DMS by reaction with hydroxyl radical, and a strong dependence upon wind speed, with high DMS concentrations at high wind speeds. The wind speed dependence was found to be broadly consistent with the wind speed dependence proposed by Liss and Merlivat [1986] for 10 m wind speed in the range 3.6 to 13 m s−1.Dimethylsulfide (DMS) concentrations measured twice per hour in marine boundary layer air at the Cape Grim baseline station exhibit high variability over timescales as short as several hours. Major sources of this variability are identified as a diurnal cycle associated with the daytime destruction of DMS by reaction with hydroxyl radical, and a strong dependence upon wind speed, with high DMS concentrations at high wind speeds. The wind speed dependence was found to be broadly consistent with the wind speed dependence proposed by Liss and Merlivat [1986] for 10 m wind speed in the range 3.6 to 13 m s−1.
View less >
View less >
Journal Title
Geophysical Research Letters
Volume
22
Issue
18
Copyright Statement
© 1995 American Geophysical Union. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Earth sciences