Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
refraction  | |
|---|---|
| RT | diffraction |
| elastic waves | |
| electrical methods | |
| geophysical surveys | |
| SN | For seismic studies, use refraction methods. For minerals, use refractive index. |
| refraction method |
|---|
| refraction methods | |
|---|---|
| BT | geophysical methods |
| .refraction methods | |
| RT | seismology |
| acoustical methods | |
| geophysical surveys | |
| seismic methods | |
| electrical methods | |
| ECORS | |
| diffraction | |
| sonobuoys | |
| SN | Restricted to geophysical methods; most commonly used for seismic methods. Indexed with seismic methods or other types of methods as applicable. |
| refraction waves | |
|---|---|
| SN | As of 1981, no longer a valid index term for GeoRef. Before 1978, also search ocean waves AND refraction. |