The role of atmospheric aerosols is significant to the Arctic warming and is related the worldwide changes in the aerosol chemical composition. The aerosol chemistry influences its direct, indirect and semi-direct effects. Moreover, several aerosol-related processes and feedbacks can enhance the Arctic amplification.

Along the present course students will learn:

• how aerosol-gases in the atmosphere interact in the Arctic influencing the final aerosol concentrations and chemical characteristics focusing on the sources, their apportionment (e.g. anthropogenic transported aerosol, dust, biomass burning) and the chemical feedback involving different environmental compartment (e.g. the sea)

• the main aerosol sampling and monitoring systems, from direct to indirect techniques, either at ground and along vertical profiles

• the aerosol, optical properties and climatic effects in the Arctic

• the heating rate determination with respect to the effect of clouds and aerosol sources and atmospheric transports

• the overall feedbacks involving aerosol in the Arctic and the interaction with mid-latitudes and equator