I used the CLM tool to create surface data in 1980-2015, and want to use the IHistClm45Bgc module to understand the changes of soil organic carbon caused by land use change. However, initialization data (finidat) is lacking. Which of the following way is the more reasonable way to obtain initialization data.
1、The IHistClm45Bgc module was spin up to the equilibrium state by using the surface data in 1980-2015 (fsurdat and flanduse_timeseries) and the meteorological data in 1979. Then, the final land surface result is used as the initialization data (finidat).
fsurdat = ‘surfdata_0.23x0.31_hist_78pfts_CMIP6_simyr1980_c230302.nc’
flanduse_timeseries = ‘landuse.timeseries_0.23x0.31_hist_78pfts_CMIP6_simyr1980-2015_c230302.nc’
2、The IHistClm45Bgc module was spin up to the equilibrium state by using the surface data in 1979 (fsurdat and flanduse_timeseries) and the meteorological data in 1979. Then, the final land surface result is used as the initialization data (finidat).
fsurdat = ‘surfdata_0.23x0.31_hist_78pfts_CMIP6_simyr1979_c230302.nc’
flanduse_timeseries = ‘landuse.timeseries_0.23x0.31_hist_78pfts_CMIP6_simyr1979-1979_c230302.nc’
1、The IHistClm45Bgc module was spin up to the equilibrium state by using the surface data in 1980-2015 (fsurdat and flanduse_timeseries) and the meteorological data in 1979. Then, the final land surface result is used as the initialization data (finidat).
fsurdat = ‘surfdata_0.23x0.31_hist_78pfts_CMIP6_simyr1980_c230302.nc’
flanduse_timeseries = ‘landuse.timeseries_0.23x0.31_hist_78pfts_CMIP6_simyr1980-2015_c230302.nc’
2、The IHistClm45Bgc module was spin up to the equilibrium state by using the surface data in 1979 (fsurdat and flanduse_timeseries) and the meteorological data in 1979. Then, the final land surface result is used as the initialization data (finidat).
fsurdat = ‘surfdata_0.23x0.31_hist_78pfts_CMIP6_simyr1979_c230302.nc’
flanduse_timeseries = ‘landuse.timeseries_0.23x0.31_hist_78pfts_CMIP6_simyr1979-1979_c230302.nc’