1. ECHAM-GML Atmosphere ECHAM v4.5 T42grid Ocean Mixed Layer
Observed damped persistence
Prescribed with SST forecasts

2. Atmospheric Mixed Layer Eastern Tropical Pacific
ECHAM-GML
ECHAM4.5
ATM
Atmospheric Mixed Layer
(Seager et al., 1998)
CFS SST forecasts
Eastern Tropical Pacific
GLM
Other Tropical Oceans
OCN

3. Pre-Run-Post processes
Spin-up
- 1month spin-up for AGCM with ocean restored to the observed SST of the IC month
- restart files for AGCM, GML, and SOM are generated
Forecast
Starting from each IC, a runscript let echam4.5 run for 8 months for forecast, echam4 .5: designed to run continuously for 1 month
Data storing and Verification
Convert the output into GRADS and netcdf formats
Calculate Anomaly Correlation Coefficients and Root-Mean-Squared Errors