Arti Jadav, postdocoral fellow at Combustion Physics, will present the results from a 10-year long simulation study, to evaluate the representation of the marine aerosols.

Oceans contributes to aerosol concentration by directly emitting (primary) and releasing gaseous precursors that form secondary aerosols upon oxidation. These marine aerosols modulate Earth’s radiative budget and cloud microphysical processes. It is important to predict the chemical composition and size of marine aerosol to assess their climate impacts. The Norwegian Earth System Model (NorESM) represents marine aerosols formed from oxidation of dimethyl sulphide (DMS) emission, organic matter produced from chlorophyll activity and sea salt. In this study we have performed 10-year long simulations to evaluate the representation of the marine aerosols. The results indicate that over the Atlantic ocean, aerosol number distribution is strongly influenced by the long range from the African continent. The Southern Ocean exhibits sensitivity to the changes in the marine aerosols. 

Fika will be served at 11.00, and the seminar starts at 11.15.