In a manual to introduce biogeochemical model in ROMS, it says
if OXYGEN is defined in "cppdefs.h", the oxygen equation is solved additionally. if CARBON is defined in "cppdefs.h", the equations for all C-related components are solved additionally.
But I could not find OXYGEN or CARBON in "cppdefs.h" of ROMS2. Can someone tell me what is going on?
Thanks.
Liejun