MCEq is a numerical tool for solving cascade equations that model the evolution of particle densities as they traverse gaseous or dense media. Its primary application is simulating particle cascades in the Earth's atmosphere, where particles are tracked as average densities across discrete energy bins. MCEq outputs differential energy spectra and total particle counts, supporting a range of models and parameterizations for particle interactions and atmospheric density profiles.
Very early releases, previously maintained under the 'master' and 'development' branches, are archived and available in the MCEq_classic repository.
The documentation contains installation instructions, a tutorial and more.
The v2 porting guide lists the API changes; the CHANGELOG lists all changes by release.
If you are using this code in your scientific work, please cite the code AND the physical models! We provide citation resources in our Docs!
Anatoli Fedynitch Stefan Fröse
See here and here for MCEq_classic.
Code released under the BSD 3-clause license (see LICENSE).