fixed global CH4 concentration in CAM-Chem (CESM1.2.2)

[yuqiang_zhang@duke_edu]

Hi,I want to fix the global CH4 concentration in CAM-Chem (CESM1.2.2) simulations. Can someone tell me how to do that? Thanks!  

 

[yuqiang_zhang@duke_edu]

To answer the question: one can set ch4vmr         = 'SOME VALUE' under "&chem_surfvals_nl"