CAM build-namelist error

[tylerh]

Hi,

I have added several namelist variables in the "user_nl_cam" file and keep getting the same error message (attached) when I try to run "./cesm.setup". I originally thought maybe my formatting was messed up in the user_nl_cam file, but everything works properly if I remove the last two variables in the file. Is there a way to change what the array size is allowed to be?



Thanks!

 

[sacks]

Based on your directory name, it looks like you're running iCESM (isotope-enabled CESM). Is that correct? I'm going to move this to the Paleoclimate forums, since that is the group that is supporting iCESM.

 

[nusbaume]

Hi Tyler,

How many total water tracers do you have? If you are using iCESM1.2, then there is currently a hard-coded limit of 700 different water tracers (which translates to 100 unique water tags). To fix this, simply modify the variable:

WTRC_MAX_CNST

in this file:

<iCESM1.2_dir>/models/atm/cam/src/physics/cam/water_tracer_vars.F90

As well as modify the type="char*X(700)" attribute for all the wtrc_* variables here:

<iCESM1.2_dir>/models/atm/cam/bld/namelist_files/namelist_definition.xml

And increase the "700" number to whatever is needed (i.e. total unique water tags * 7). If by chance you are using a later version of iCESM and/or iCAM then you should only need to modify the namelist_definition.xml file, as WTRC_MAX_CNSTwill be set automatically.

If after doing this you still run into any problems or issues just let me know.

Thanks, and have a great day!

Jesse