photographic surveying

photographic surveying

[¦fōd·ə¦graf·ik sər′vā·iŋ]
(engineering)
Photographing of plumb bobs, clinometers, or magnetic needles in borehole surveying to provide an accurate permanent record.
References in periodicals archive ?
Wheeler, a Canadian who came from a family of geologists and had learnt to climb in the Rocky Mountains with his father, was chosen to join the expedition because of his expertise in photographic surveying.
I had been out there for a year, since May, 2000, and was celebrating a friend's 30th birthday in a bar when I met Cristian who was doing some photographic surveying work in the area.
He wrote a book, Photographic Surveying, to aid surveyors using the camera method in the field.