CLASS (Chemistry Land surface Atmosphere Soil Slab) combines the theoretical concepts of the land-atmosphere-cloud system outlined in a course book with the CLASS software. This software provides hands-on practical exercises and allows a researcher or student to design their own numerical experiments. CLASS is an ideal modelling tool to support the observational analyses of biological, chemical, soil, plant and atmospheric boundary layer dynamics. In addition to the original friendly graphical interface, there is a version coded in PYTHON and FORTRAN.
More information and the code at http://classmodel.github.io/