Journal article

Cloud, precipitation and radiation responses to large perturbations in global dimethyl sulfide

Sonya L Fiddes, Matthew T Woodhouse, Zebedee Nicholls, Todd P Lane, Robyn Schofield

Copernicus GmbH

Abstract

<p><strong>Abstract.</strong> Natural aerosol emission represents one of the largest uncertainties in our understanding of the climate system. Sulfur emitted by marine organisms, as dimethyl sulfide (DMS), constitutes one fifth of the global sulfur budget and yet the distribution, fluxes and fate of DMS remain poorly constrained. In this study we quantify the role of DMS in the chemistry-climate system and determine the climate's response to large DMS perturbations. By removing all marine DMS in the Australian Community Climate and Earth System Simulator (ACCESS) – United Kingdom Chemistry and Aerosol (UKCA), we find a top of atmosphere radiative effect of 1.7&amp..

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University of Melbourne Researchers

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