| Abbreviation | Definition |
|---|---|
| EQ | Equator |
| ER | Earth Resource |
| ERA | ECMWF Re-Analysis |
| ERB | Earth Radiation Budget |
| ERC | Extended Research Checkout |
| ERF | Earthquake Rupture Forecast |
| ERL | Environmental Research Laboratories |
| ERM | Earth Resistance Meter |
| EROS | Earth Resources Observation System |
| ES | Equatorial System |
| ESD | Electromagnetic Static Disruption |
| ESD/IPC | Environmental Satellite Distribution/Interactive Processing Center |
| ESE | Earth Science Enterprise |
| ESMA | Emirates Authority for Standardization Metrology |
| ESMA | Emirates Authority for Standardization & Metrology |
| ESP | Extended Streamflow Prediction |
| ESSP | Earth System Science Pathfinders |
| ET | Extra Tropical |
| ET/WFEU | Expert Team on Warnings and Forecast Exchange, Understanding, and Use |
| ETL | Environmental Technology Laboratory |