Equilibrium climate sensitivity experiments using EC-Earth3-LR model — Surface Air Temperature data

Three experiments was conducted using a EC-Earth model with the EC-Earth3-LR configuration (REF), which couples atmosphere, land, ocean and sea-ice components. First, we performed a pre-industrial (PI) control simulation (E280) using pre-industrial forcing, holding atmospheric constituents constant at 1850 levels (e.g., CO₂ concentration at 280 ppm). This simulation was initialized by a pre-run steady restart file (from a 500-year pre-industrial control simulation) and ran for 2000 years. We also conducted two sensitivity experiments (E400 and E560) by adjusting the CO₂ concentration to 400 ppm and 560 ppm, respectively, at the start year of the E280 experiment, and continued for over 3000 years (3069 years for E400, and 3013 years for E560). For our statistical analysis, we only considered the integration periods after the spin-up, using the last 2000-year outputs from the three simulations.

The dataset contains Earth system model results from EC-Earth3 presented in the study by Cao et al. (2023).

Cao, N., Zhang, Q., Wang, Z., Power, K.E., & Liu, C. (2023). The non-negligible impact of internal multi-centennial climate variability on estimating equilibrium climate change. Submitted to Geophysical Research Letters.

Model configuration
Time periods: 2000-year time slice for all three experiments
ESM configuration: EC-Earth3-LR
Horizontal resolution: ~1.125° (~125 km)

Available data
Annual mean data for Surface Air Temperature data.