Hi All,

I am analyzing simulation results from a case with BSSP585 Compset (but BGC-SP is used) by CESM2.1.2. I output the PFT level results and aggregated (area-weighted) the results from all tree PFTs to compute the results of 'tree land tile'.

Then I checked the energy balance of the tree land tile and rural land unit using this equation: Error=FSA-FIRA-FSH-EFLX_LH_TOT-FGR. I found that the Error can be very large (-20W/m2) in Greenland region and sometimes in Tibet plateau. For other regions, the energy balance error is very small.

Is this energy imbalance common for a fully coupled simulation? If so, I wonder what is the possible reason for the energy imbalance in Greenland? I guess this has something to do with the land ice model but I cannot figure out why...

Any help would be appreciated! Thanks!

I am analyzing simulation results from a case with BSSP585 Compset (but BGC-SP is used) by CESM2.1.2. I output the PFT level results and aggregated (area-weighted) the results from all tree PFTs to compute the results of 'tree land tile'.

Then I checked the energy balance of the tree land tile and rural land unit using this equation: Error=FSA-FIRA-FSH-EFLX_LH_TOT-FGR. I found that the Error can be very large (-20W/m2) in Greenland region and sometimes in Tibet plateau. For other regions, the energy balance error is very small.

Is this energy imbalance common for a fully coupled simulation? If so, I wonder what is the possible reason for the energy imbalance in Greenland? I guess this has something to do with the land ice model but I cannot figure out why...

Any help would be appreciated! Thanks!