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CAM4; ZM_CONV IENTROPY: Tmix did not converge

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jhe@...
CAM4; ZM_CONV IENTROPY: Tmix did not converge

Hi,

I'm trying to run slabocean aquaplanet configuration with 2xCO2. The model crashed in year 6. It seems the model produced a value that exceeded its limit. The error massage is pasted below.

I saw a similar issue reported on the forum before. The suggested solution is to increase nsplit, nspltrac and nspltvrm, which I tried and didn't work. The model I'm running is CESM1.2.1 with CAM4.


 *** ZM_CONV: IENTROPY: Failed and about to exit, info follows ****

ZM_CONV: IENTROPY. Details: call#,lchnk,icol= 2 168  15 lat:  -0.95 lon: 312.50 P(mb)= 603.39 Tfg(K)= 295.77 qt(g/kg) =  27.78 qst(g/kg) =   6.90, s(J/kg) = 403.44

(shr_sys_abort) ERROR: **** ZM_CONV IENTROPY: Tmix did not converge ****

 

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

 

Thanks,

Jie

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