Configure Modes NOT scientifically validated, documented, supported or, in some cases, even advised to be used:

1. C13

   (-c13)

   The C13 mode for bgc=cn is NOT scientifically validated or documented and is NOT recommended for use. It is also deprecated and will be removed in the next release (although CLM4.5 will have namelist options for both C13 and C14).

2. SNICAR_FRC

   (-snicar_frc)

   This mode is tested and functional, but is NOT constantly scientifically validated, and should be considered experimental.