Emulator RMSE in mean surface air temperature (K) RMSE in mean diurnal temperature range (K) RMSE in mean precipitation (mm/day) RMSE in 90th percentile precipitation (mm/day)
Gaussian process regression 0.36 (CRPS: 0.33) 0.15 (CRPS: 0.12) 0.53 (CRPS: 0.42) 1.54 (CRPS: 1.27)
Neural network (CNN+LSTM) 0.38 0.17 0.58 1.64
Random Forest 0.42 0.15 0.53 1.54
UKESM1 2.20 1.28 0.89 2.57
(variability) 0.80 0.31 1.20 3.52