Minimize differences in multi-stage runs¶
If you need to split up a very long simulation (e.g. 1 model year or more) into multiple stages, keep these guidelines in mind:
HEMCO_RESTARToptions are set to
To ensure your restart_files are read and species concentrations are properly initialized, check your GEOS-Chem log file for the following output:
=============================================================================== R E S T A R T F I L E I N P U T Min and Max of each species in restart file [mol/mol]:`` Species 1, NO: Min = 1.000000003E-30 Max = 1.560991691E-08 Species 2, O3: Min = 3.135925075E-09 Max = 9.816152669E-06 Species 3, PAN: Min = 3.435056848E-25 Max = 1.222619450E-09 ...
Actual values may differ. If you see
Use background = ...for most or all species, that suggests your restart file was not found. To avoid using the wrong restart file make sure to use time cycle flag
EYin HEMCO_Config.rc (cf. How are restart files read into GEOS-Chem?).