The project attempts to quantify the radiative impact of organic/inorganic aerosol in Europe since ~ AD 1850. Present-day aerosol composition is investigated at remote sites on a west-east transect including precipitation samples. Apart from inorganic species, specific analyses comprise elemental, particulate and secondary carbon fractions as well as organic tracers including 14C for fossil/biomass differentiation. The change of organic/inorganic aerosol load over Europe since the pre-industrial era will there be reconstructed from available Alpine ice cores via experimental air/snow relationship at the glacier sites. Model simulations and observed organic aerosol distributions are iteratively used to estimate natural versus anthropogenic (primary/secondary) source contributions at present and past. From that, past trends in radiative aerosol forcing due to change in load and composition are quantified with regional model simulations.
Call for proposalData not available
Funding SchemeCSC - Cost-sharing contracts
20899 8370 Gaythersburg