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photo-survey
photo-survey n. 
/ˌfəʊtə(ʊ)səˈveɪ/,
Brit. /ˌfəʊtəʊˈsəːveɪ/
, /ˌfəʊtəʊˈsəːveɪ//ˌfəʊtə(ʊ)səˈveɪ/U.S. /ˌfoʊdoʊˈsərˌveɪ/
Surveying a survey using photography to record data; the practice of making such surveys (= photo-surveying n.)./ˌfoʊdoʊˈsərˌveɪ/ΚΠ
1891 Internat. Ann. Anthonys Photogr. Bull. 236 Join a society which has undertaken the ‘photo-survey’ of its district, and do your part.
1922 Geogr. Jrnl. 59 82 An expert in the Canadian system of photo-survey, a method especially useful in difficult and mountainous country.
1966 P. O'Donnell Sabre-tooth ii. 25 [He] had spent the last three months flying photosurveys for a wild-cat mineral prospecting firm in Canada.
1994 S. Matheson Flying Frontiers i. 2 Pilot Bobby D'Easum from Vancouver..was doing photo surveys at 22,000 feet with a Beaver for the BC government's topographic surveys department.
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