ERROR: Longwave down sent from the atmosphere model is negative or zero

[pybl]

Hello,

I use WACCM 6 --compset BWma1850 --res f19_g17 for my simulation and STOP_N= 6 months, and I encountered this error shown in cesm log file that stopped the run.

'' lnd_import ERROR: Longwave down sent from the atmosphere model is negative or zero ''

I have found similar error in thread, but solution wasn't posted there I guess:

lnd_import ERROR: Longwave down sent from the atmosphere model is negative or zero

Dear all, recently, I am working on CAM6 with variable-resolution simulation. I want to run the simulation with FHIST_BGC component set. I build the model and can successfully complete the the simulation for 5 days (STOP_N=5). However, the model always crash when I change the STOP_N to a longer...

bb.cgd.ucar.edu

Thanks for helping!

 

[katec]

Hi Bingham,
Sorry for not replying in the previous thread. These are issues that don't have any answers that are not easy to figure out over a bulletin board post. Are you getting the same longwave down error in this run in the previous run that was modified? What modifications were done to this run? Could you please send a copy of your atm and cesm log files plus any modifications you made to the case for this run? I have often seen that these errors occur due to modifications that cause the model to get into a bad state.