Abstract: In the first half, Lucie will introduce the Lagrangian particle dispersion model FLEXPART and highlight some of the developments in the upcoming version 11. Atmospheric transport modelling plays an important role in understanding many complex interactions within our atmosphere. Developed in the 1990s, FLEXPART has proven to be a valuable tool for investigating a wide range of environmental issues, both in the research community and in operational settings. Its applications now cover much of atmospheric research and extend into related disciplines such as ice core interpretation. New features of FLEXPART include the proper consideration of aerosol particle shape, improving the accuracy of the deposition of non-spherical particles (e.g. microplastic fibres), OpenMP parallelisation, a user manual, new input and output options, and many technical improvements.
In the second half, Andreas will present an evaluation of historical SO2 emissions for roughly the last 150 years, as used for Coupled Model Intercomparison Projects (e.g., CMIP6). This evaluation is based on an inversion technique using an array of ice core records of deposited sulfate and atmospheric transport/deposition modeling with FLEXPART. The inversion technique minimizes discrepancies between the spatio-temporal patterns of the emission inventories and the observed deposition at the ice core sites by adjusting the emissions and providing new emission estimates. We find substantial differences between the inversion-reconstructed SO2 emissions and existing bottom-up inventories.
What is the Joint Oslo Seminar (JOS):
- Atmospheric and climate sciences have a stronghold in Oslo among the four institutions University of Oslo, the Meteorological Institute, CICERO and NILU.
- This joint seminar invites renowned international experts to contribute to an informal series of lectures, meant to create interaction with the Oslo atmospheric and climate science community on recent highlights and analysis in the field.
- Normally seminars will be held on Thursdays (12:15 pm -1 pm).