Arctic-SOLAS 2007 atmospheric DMS, SO2, aerosol sulfate and MSA

The CLAW hypothesis states that dimethylsulfide (DMS) could produce a climate feedback mechanism by the production of sulfate that could form new aerosols and alter cloud albedo. The melting of sea ice and opening of waters in the Arctic could potentially release more DMS in the atmosphere intensifying these effects. This study aims to understand the effects of DMS and its oxidation products to aerosol formation and growth. The use of stable isotope techniques would identify the amount of SO2 and sulfate that originated from DMS oxidation. These would serve as inputs to oxidation models to better understand DMS oxidation mechanism in Arctic conditions. Also, this would be used to ascertain whether DMS emissions in the Arctic atmosphere could result in new aerosol formation.