| Acronym | Meaning |
| IAM | Integrated Assessment Modeling |
| HLR | Hydraulic Loading Rate |
| MMT | Methylcyclopentadienylmanganese Tricarbonyl |
| CARS | Coherent Anti-Stokes Raman Spectroscopy |
| PNA | Polynuclear Aromatic Compound(s) |
| GEOS | Goddard Earth Observing System |
| EMIS | Environmental Management Information System |
| CVA | Characteristic Vector Analysis |
| MSS | Multispectral Scanner |
| CVBM | Conduction-valence-band Model (in Electronic Structure Calcns.) |