JOSEFINA (Joint Bavarian Slovenian Endeavor for Innovative Air Quality Analysis)

The aim is to create the first comprehensive fine dust map for Bavaria using historical and new satellite data from various missions from 1999 to the present (AQUA/MODIS, TERRA/MODIS, Copernicus/Sentinel-3). The data will be available on a homogeneous grid with a resolution of better than 5x5 km². The mapping and data evaluation will serve to improve air quality analyses and multi-day forecasts for Bavaria through the synergistic combination of in-situ measurements from the LÜB network with regional chemistry transport modelling. For the first time, aerosol data from the new COPERNICUS space infrastructure (Sentinel-3 with MODIS and VIIRS as possible substitutes) will also be assimilated into the model system. Another important component is the integration of the results into the Alpine Data Analysis Centre of the Schneefernerhaus Environmental Research Station (UFS). The work also includes comparisons and validations of the results with the help of the LÜB network and data from Slovenian partners. Finally, analyses of the variability and trends of the air pollutants PM (particles), NO2 and aerosol optical thickness based on satellite data should make a significant contribution to improving our understanding of air pollution and climate change in Bavaria.