| Abbreviation | Definition |
|---|---|
| DECCEN | DECadal-to-CENtennial |
| DEIS | Draft Environmental Impact Statement |
| DES | Division of Earth Sciences |
| DES | Division of Environmental Sciences |
| DESSC | DEep Submergence Science Committee |
| DF | Darkness Falls at .... |
| DFN | Dolphin Friendly Net |
| DFO | Department of Fisheries and Oceans |
| DGNSS | Differential Global Navigation Satellite System |
| DGPS | Differential Global Positioning System |
| DIAL | DIfferential Absorption LIDAR |
| DIC | Dissolved Inorganic Carbon |
| DIEB | Department of the Interior Energy Board |
| DIFAR | DIrectional Frequency Analysis and Recording |
| DISL | Dauphin Island Sea Laboratory |
| DIU | Data Information Unit |
| DL | Disturbance Lines |
| DLWL | Discharge Line Water Leg |
| DM | Data Management |
| DMA | Defense Mapping Agency |