Welcome to the new DiscussCESM forum!
We are still working on the website migration, so you may experience downtime during this process.

Existing users, please reset your password before logging in here: https://xenforo.cgd.ucar.edu/cesm/index.php?lost-password/


  1. X

    how to close atmospheric chemistry in FHIST_BGC case

    Hi I am planing a long time (more than 200 years) run for FHIST_BGC case, and I find the atm takes more than 80 percent of the total run time. So, I would like to close the atmospheric chemistry to reduce run cost. I attempt to only change the CAM_CONFIG_OPTS from "-phys cam6" to "-phys cam6...
  2. L

    How to add heterogeneous reaction in CAM-chem

    Dear all, I'm running CAM-chem simulation with CESM2.1.0 and I want to add heterogeneous reactions in the FCHIST compset. Where should I change the chemical mechanism? Which file should I add the reactions and individualized reaction rate constant? I really appreciate your helps.