GMSL experiments

The first is the pre-industrial control experiment (picontrol). It employs the Earth's orbital parameters of 1990 CE, and the atmospheric CO2 level 284.70 ppm and CH4 level 791.60 ppb.

The second group (lig126 group) includes three simulations, lig126, lig126sl5m, lig126sl10m. The lig126 experiment, which only considers changes in the Earth's orbital configuration and greenhouse gas levels, uses the orbital parameters of 126 ka, the atmospheric CO2 level 274.99 ppm, and the atmospheric CH4 level 652.52 ppb. In addition to the orbital parameters and greenhouse gas level, lig126sl5m and lig126sl10m further consider the GMSL rise of 5 and 10 m, respectively.

The third group (co2400 group) includes seven simulations, co2400, co2400sl0.625m, co2400sl1.25m, co2400sl2.5m, co2400sl5m, co2400sl10m and co2400sl20m. In co2400, the atmospheric CO2 level is 400 ppm, all other boundary conditions (including orbital parameters, CH4 level, bathymetry, and topography) are identical to the picontrol experiment. Compared to co2400, we consider GMSL rise of 0.625, 1.25, 2.5, 5, 10, and 20 m in other experiments in this group.