1) Geological technique
Found on
https://www.crosswordclues.com/clue/geophotography
Geophotography (also geo-photography or geological photography) is a subfield of geology that involves the use of photography or other imaging techniques in the visible or near-visible (e.g. ultraviolet, infrared) spectrum to realistically record objects, features, and processes of geological significance. Ultimately geophotography is motivated by...
Found on
http://en.wikipedia.org/wiki/Geophotography
No exact match found.
