| Acronym | Meaning |
| NEMS | Nimbus E Microwave Spectrometer |
| DDC | Defense Documentation Center |
| ONERA | Office National D'Etudes Et De Recherches Aerospatiales |
| Z-R | Relationship |
| ETIP | Experimental Technology Incentive Program |
| PSAC | President's Science Advisory Committee |
| ASIS | American Society For Industrial Security |
| LIS | Lightning Imaging Sensor |
| IGBP | International Geosphere-Biosphere Program |
| EF | Emission Factor |