| Acronym | Meaning |
| DES | Data Encryption Standard |
| UK AEA | United Kingdom Atmomic Energy Authority |
| ICPM | International Commission On Polar Meteorology |
| JICA | Japan International Development Agency |
| PDM | Pulse Duration Modulation |
| NOSS | National Ocean Satellite System |
| ENEA | Comitato Nazionale Per La Ricerca E Lo Sviluppo Dell' Energia Nucleare E Delle Energie Alternative |
| CDS | Coronal Doppler Spectrometer |
| IPCC | Intergovernmental Panel On Climate Change |
| PCO | Polar Cap Observatory |