SNAP is now able to better calculate the long-range fallout of nuclear bombs including decay-rate of fallout. SNAP uses now also all layers of the input-meteorology and the output can be set by defining the surface-layer height explicitly (defaut: lowest layer). It is also possible now to run the model with higher output-resolution that the meteorological driver using the config option: https://gitlab.met.no/emep/snap-docs/-/wikis/RCRON#ci-failed . The model comes now also with a tool to identify the mass-balance within the model, i.e. radioactivity leaving the domain vs deposition etc.
This version is also the first version which requires python >= 3.9 (before: >= 3.6) for all job-control and GUI and visualisation-scripts.