This repository contains the CABLE offline configurations used as part of the Global Carbon Budget project. These configurations are the most complicated configuration currently being run with CABLE, containing a series of spin-up stages. The set of stages used in a given configuration is set by the stage_config.yaml file. The stages in this configuration are as follows:
- Climate spin-up (
climate_spinup) - Biomass spin-up (
biomass_spinup) - Carbon stocks spin-up with unrestricted labile
A. Numerical (
unrestricted_N_P) B. Analytical (unrestricted_N_P_analytic) - Carbon stocks spin-up with restricted labile
A. Numerical (
restricted_N_P) B. Analytical (restricted_N_P_analytic) - Land use change initialisation (only with dynamic land use) (
initialise_land_use) - Spin-up with all physics modules active (
full_dynamic_spinup) - Final run (
final_run)
The sub-stages within stages 3 and 4 are cycled based on their entries in stage_config.yaml. The configurations are named based on the scenarios specified by the Global Carbon Budget's TRENDY project.
The supported configuration reflect the respective TRENDY scenarios. The scenarios and respective branches are:
- Scenario 0 (S0): Pre-industrial atmospheric CO2 and nitrogen deposition, with recycled meteorology from 1901 to 1920 and static land use.
- Scenario 1 (S1): Yearly atmospheric CO2 and nitrogen deposition, with recycled meteorology from 1901 to 1920 and static land use.
- Scenario 2 (S2): Yearly atmospheric CO2 and nitrogen deposition, with yearly meteorology and static land use.
- Scenario 3 (S3): Yearly atmospheric CO2 and nitrogen deposition, with yearly meteorology and dynamic land use.
Note that in this instance the differences between the scenarios are restricted to the full_dynamic_spinup and centennial run stages. The prior spin-up stages are the same across scenarios (bar intialise_land_use, which is only active in scenario 3). The meteorology used is the CRU-JRA v2.4 dataset. The land use change data used is the LUH2 dataset. Both are downscaled to 1 degree resolution.
In this instance, "pre-industrial" refers to the year 1700 for the atmospheric CO2 and 1850 for the nitrogen deposition. For scenarios 1 through 3, the yearly data is used for the full_dynamic_spinup and final_run stages. The source of these datasets is currently unknown.
The time period used for the recycled meteorology is a 20 year period from 1901 to 1920. The recycled meteorology is used for all stages bar the final_run stages in scenarios 2 and 3.
The time period used for the initialise_land_use stage in scenario 3 is 1580 to 1699, and 1700 to 1900 for the full_dynamic_spinup stage.