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Changing -nlev for CAM5

I'm trying to run CAM5 with 60 vertical levels but I'm having trouble figureing out where / how to set -nlev. In the user guide there is a lot of discussion about the configure utility but non of my scripts seem to utilize this directly (maybe because I'm running this through cesm?).I've tried "./xmlchange -file env_run.xml -id CAM_NAMELIST_OPTS -val nlev=60" which outputs the error:"ERROR: in _validate_pair (package Build::NamelistDefinition): Variable name nlev not found..."Thanks for any help,   
 

eaton

CSEG and Liaisons
nlev is an option to configure, not to build-namelist.  You are correct that the cesm scripts don't give you direct access to nlev.  You'll need to go into the file cam/bld/cam.buildnml.csh to access and modify the cam configure command that's issued by the cesm scripts. 
 
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