17 entries under operation topic. ×

10
ground survey(expression, survey, land, ground)
9
terrestrial survey(expression, survey, land, ground)
8
ground mapping(expression, survey, land, ground)
8
ground radiological survey(expression, survey, land, ground)
7
surface mapping(expression, survey, land, ground)
7
surface survey(expression, survey, land, ground)
6
land-based survey(expression, survey, land, ground)
6
surface study(expression, survey, land, ground)
5
land operations(expression, survey, land, ground)
4
land exploration(expression, survey, land, ground)
4
land survey(expression, survey, land, ground)
4
land works(expression, survey, land, ground)
4
on-the-ground survey(expression, survey, land, ground)
4
surface measurements(expression, survey, land, ground)
3
ground investigations(expression, survey, land, ground)
3
land data acquisition(expression, survey, land, ground)
3
land surveying(expression, survey, land, ground)
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APASmart Define. (1970). aerial survey thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/aerial_survey/thesaurus/antonyms
ChicagoSmart Define. 1970. "aerial survey thesaurus" https://smartdefine.org/aerial_survey/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 1970, aerial survey thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/aerial_survey/thesaurus/antonyms>.
MLASmart Define. "aerial survey thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/aerial_survey/thesaurus/antonyms>