| Acronym | Meaning |
| OTEQ | One-dimensional Transport With Equilibria Calculations |
| SPT | Standard Penetration Test |
| MOVB | MO-valence Bond |
| NDSC | Network For The Detection Of Stratospheric Change |
| DSS | Deep Seismic Sounding |
| ASCREV | Anodic Stripping Continuous Recall Enhancement Voltammetry |
| SCRAM | EPA Support Center For Regulatory Air Models |
| BOFS | Biogeochemical Ocean Flux Study (UK) |
| RCIS | Resource Center Information System |
| SINDO | Symmetrically Orthogonalized Intermediate Neglect Of Differential Overlap |