Special Tracers

Some special tracer physics come as standard in the model. These relate to tracers that are of special interest to some of the developers.

• #define TRACERS_SPECIAL_O18 sets up special physics for water isotopes. It requires #define TRACERS_ON and #define TRACERS_WATER to be set as well, and that TRACERS_O18 be included in the object modules.
• #define TRACERS_SPECIAL_Lerner tracers for looking at stratospheric/tropospheric exchange.