YAK AEROSIB

The objective of the YAK-AEROSIB project is to establish systematic observations of atmospheric concentrations of CO2, CH4, CO, O3 and aerosols in Eurasia. These measurements will be collected over a period of several years on board a research aircraft on a transcontinental route between Western and Eastern Siberia. Observations of CO2 and CO gradients in the lower and middle troposphere will be used to infer the sources of these gases from anthropogenic activities and biomass burning, using inverse modelling techniques. Observations of O3 and CO2 interpreted with chemistry-transport models will be used to quantify the chemical and dynamical processes that lead to the formation and long-range transport of O3 in the Northern Hemisphere.