| Acronym | Meaning |
 | WWRP | World Weather Research Programme |
| HYPERCHANNNEL | High-speed Communications Link |
| OMNET | N/A |
| FIRE | First ISLSCP Regional Experiment |
| PPHM | Parts Per Hundred Million |
| OSD | Office Of Systems Development |
| GMD | Geometric Mean Diameter |
| AC | Actual Commitment |
| GISMOS | Global Incoherent Scatter Measurements Of Substorms |
| XANADU | Software Name |
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