Added multiple layers to the atmosphere. These have adjacent radiation exchange but not cross-level exchange, and no vertical momentum calculated. Also tweaked the absorption in different levels of the atmosphere. Differential sections of the code have been generalised for 3D fields
Increased heat capacity of all components, resulting in more realistic physics (i.e. no immediate blowup). Also implemented toggle for velocity calculations (now largely redundant). Various other fiddles.
Corrected geometric mistake with Coriolis, tidied up optional oceans, changed the order of operation such that all thermal processes take place before updating the pressure
Simon Clark