Variability of atmospheric DMS due to changes in ultraviolet light

Kniveton, D R, Todd, M C, Sciare, J and Milahopoulis, N (2004) Variability of atmospheric DMS due to changes in ultraviolet light. In: Atmosphere-Ocean-Ecology dynamics in the western Indian Ocean. 19th and 20th January 2004.

Full text not available from this repository.


Dimethylsulphide (DMS) is a climatically important component of global biogeochemical cycles, through its role in the sulphur cycle. Changes in ultraviolet radiation (UV) exhibit both positive and negative forcings on the dynamics of production and turnover of DMS and its precursor dimethylsulphoniopropionate (DMSP). In this study we investigate the net forcing of UV on atmospheric DMS. The work is based on a 10-year record of observed DMS at Amsterdam Island in the southern Indian Ocean, and satellite-based retrievals of surface UV and photosynthetically active radiation (PAR). The results show an inverse relationship between UV radiation and atmospheric DMS associated with extreme changes (defined as the greatest 5%) in daily UV, independent of changes in wind speed, sea surface temperature, and PAR.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Poster at the Royal Society Discussion Meeting
Schools and Departments: School of Global Studies > Geography
Depositing User: Dominic Kniveton
Date Deposited: 06 Feb 2012 15:12
Last Modified: 11 Apr 2012 11:22
📧 Request an update