Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| ground methods  | |
|---|---|
| RT | airborne methods | 
| geophysical methods | |
| geophysical surveys | |
| ground-penetrating radar | |
| methods | |
| PANDA | |
| time domain reflectometry | |
| SN | Before 1978, also search ground AND methods. | 
| Data sets | Publications | Expeditions | Thesaurus | 
| ground methods  | |
|---|---|
| RT | airborne methods | 
| geophysical methods | |
| geophysical surveys | |
| ground-penetrating radar | |
| methods | |
| PANDA | |
| time domain reflectometry | |
| SN | Before 1978, also search ground AND methods. |