Appendix D
Acronyms and Initialisms
| ACID | Attribution; Corroboration; Informed by mechanistic understanding; Detection |
| AMJ | April May June |
| AMOC | Atlantic meridional overturning circulation |
| CAM5 | Community Atmosphere Model 5 |
| DJF | December January February |
| EA | East Atlantic |
| ENSO | El Niño/Southern Oscillation |
| ESRL/PSD | Earth System Research Laboratory/Physical Sciences Division |
| GHG | Greenhouse Gas |
| JAS | July August September |
| JFM | January February March |
| JJA | June July August |
| MAM | March April May |
| NAM/AO | Northern Annular Mode/Arctic Oscillation |
| NAO | North Atlantic Oscillation |
| NCAR | National Center for Atmospheric Research |
| NCEP | National Centers for Environmental Prediction |
| NH | Northern Hemisphere |
| NIC | National Ice Center |
| NOAA | National Oceanic and Atmospheric Administration |
| NSIDC | National Snow and Ice Data Center |
| OND | October November December |
| PDO | Pacific Decadal Oscillation |
| RCP | Representative Concentration Pathway |
| SON | September October November |
| TEAM | Tropically-Excited Arctic warMing |
| VIRS | Visible and Infrared Scanner |
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