| CDC | NOAA Climate Diagnostics Center |
| CPC | Climate Prediction Center, NCEP/NWS/NOAA |
| IRI | International Research Institute for Climate Prediction |
| Lamont-Doherty Eartd Observatory, Columbia University | |
| NCEP | NOAA National Centers for Environmental Prediction |
| NSIPP | NASA Seasonal-to-Interannual Prediction Project |
| Scripps | Scripps Institution of Oceanography, University of California, San Diego |
| TAO | Tropical Atmosphere Ocean Project |
| AO | Artic oscillation |
| CA | Constructed Analog Metdod |
| CCA | Canonical Correlation Analysis |
| CFS | NCEP new coupled climate prediction GCM |
| ENSO | El Nino/Southern Oscillation |
| MM | Multiple model ensemble |
| SFM | NCEP operational seasonal prediction GCM |
| SST | Sea surface temperature |