| Abbreviation | Definition |
|---|---|
| EHI | Enormous Hail Index |
| EHP | USGS Earthquake Hazards Program |
| EMC | Environmental Modeling Center |
| EMC | Equilibrium Moisture Content |
| EMR | Endless Mud Rain |
| ENAS | Emirates Authority for Standardization Metrology |
| ENAS | Emirates Authority for Standardization & Metrology |
| ENSO | El Niño/La Niña Southern Oscillation |
| ENSO | El Niño-Southern Oscillation |
| EO | Electro-Optical |
| EO-ICWG | Earth Observations International Coordination Working Group |
| EOS | Earth Observing System |
| EOS | Eye Of the Storm |
| EOSDIS | EOS Data and Information System |
| EOSP | Earth Observing Scanning Polarimeter |
| EOTDA | Electro Optical Tactical Decision Aid |
| EP | Effective Precipitation |
| EPIC | East Pacific Investigation of Climate |
| EPIC | Equatorial Processes Including Coupling |
| EQ | Equalize |