| Acronym | Meaning |
| IAH | International Association Hydrogeologists |
| SERA | Sequential Electrochemical Reduction Analysis |
| SOTE | Standard Oxygen Transfer Efficiency (of Aeration Diffusers) |
| GRPA | Generalized Random-phase Approximation |
| ETA | Electrothermal Atomization |
| MS | Molecular Spinor |
| ILTJ | Iodine-Laser Temperature Jump |
| MAS | Molecular Absorption Spectroscopy |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection Radiometer (EOS) |
| AMSR | Advanced Microwave Scanning Radiometer |