What version of the code are you using?
cesm_dart.2.2.03
Have you made any changes to files in the source tree?
Yes I changed the source code to include a spatially resolved soil decomposition parameters.
Describe every step you took leading up to the problem:
I am trying to re spin-up my case after changing the code. Here is my steps:
1. Create a case named SSA_Feng_spinup.AD.t1.
2. Spin up this case at accelerated decomposition mode (./xmlchange CLM_ACCELERATED_SPINUP="on") and run for 200 years, from 1300 to 1500.
3. Create another case named SSA_Feng_spinup.postAD
4. Add finidat='/glade/derecho/scratch/jiamengl/archive/SSA_Feng_spinup.AD.t1/rest/1500-01-01-00000/SSA_Feng_spinup.AD.t1.clm2.r.1500-01-01-00000.nc' in the user_nl_clm file for the postAD case.
5. Run the postAD case under normal mode (./xmlchange CLM_ACCELERATED_SPINUP="off") for 500 years, from 1500 to 2100.
Describe your problem or question:
I expect that if I plotted the variable values from 1300 to 2100, the values will be continuous as the initial file for my postAD case is the restart file of my AD case in the last running year. However, for the soil carbon I found that the postAD value is much higher than the AD value, and they seemed not continuous, although in the end, it seemed to be in equilibrium.
I checked the user guide (1.5.5. Spinup of CLM5.0-BGC-Crop — ctsm release-clm5.0 documentation), and found that interestingly, the values for variable are also not continuous in Fig. 1.5.3 and Fig. 1.5.4. For example, the variable TOTSOMC in Fig. 1.5.3 (which should correspond to an AD case) ends at ~45 Pg C, whereas the TOTSOMC in Fig. 1.5.4 (corresponding to the following postAD case if I understand correctly) starts at 1892 Pg C.
In this case, I am wondering does this make sense that these two cases just not give similar and continuous values?
Figures that show my results are attached for your reference. Thanks for your time!
cesm_dart.2.2.03
Have you made any changes to files in the source tree?
Yes I changed the source code to include a spatially resolved soil decomposition parameters.
Describe every step you took leading up to the problem:
I am trying to re spin-up my case after changing the code. Here is my steps:
1. Create a case named SSA_Feng_spinup.AD.t1.
2. Spin up this case at accelerated decomposition mode (./xmlchange CLM_ACCELERATED_SPINUP="on") and run for 200 years, from 1300 to 1500.
3. Create another case named SSA_Feng_spinup.postAD
4. Add finidat='/glade/derecho/scratch/jiamengl/archive/SSA_Feng_spinup.AD.t1/rest/1500-01-01-00000/SSA_Feng_spinup.AD.t1.clm2.r.1500-01-01-00000.nc' in the user_nl_clm file for the postAD case.
5. Run the postAD case under normal mode (./xmlchange CLM_ACCELERATED_SPINUP="off") for 500 years, from 1500 to 2100.
Describe your problem or question:
I expect that if I plotted the variable values from 1300 to 2100, the values will be continuous as the initial file for my postAD case is the restart file of my AD case in the last running year. However, for the soil carbon I found that the postAD value is much higher than the AD value, and they seemed not continuous, although in the end, it seemed to be in equilibrium.
I checked the user guide (1.5.5. Spinup of CLM5.0-BGC-Crop — ctsm release-clm5.0 documentation), and found that interestingly, the values for variable are also not continuous in Fig. 1.5.3 and Fig. 1.5.4. For example, the variable TOTSOMC in Fig. 1.5.3 (which should correspond to an AD case) ends at ~45 Pg C, whereas the TOTSOMC in Fig. 1.5.4 (corresponding to the following postAD case if I understand correctly) starts at 1892 Pg C.
In this case, I am wondering does this make sense that these two cases just not give similar and continuous values?
Figures that show my results are attached for your reference. Thanks for your time!
