groundtruthing
n.— Note: OED defines this as “the action or process of establishing ground truth,” and defines “ground truth” as “information obtained by direct measurement at ground level, rather than by interpretation of remotely obtained data.” «Checking “hot” spots identified last year by thermal imaging on Bella Vista’s seven lakes should begin in the coming weeks. The process, called groundtruthing, could take up to a year to complete with additional testing next summer.» —“Checking lakes for contamination could take up to 12 months” by Charles Huggins The Weekly Vista Oct. 3, 2007. (source: Double-Tongued Dictionary)
Further reading
Enthusiastic book recommendations! Martha’s savoring the biography of Alexander von Humboldt, the 19th-century explorer, polymath, and naturalist who revolutionized our understanding of nature and predicted the effects of human activity on...
Louie from Black Hills, South Dakota, recalls the time his girlfriend fell off a paddleboard and into a lake, at which point his father declared She bit the farm! This peculiar locution is most likely his dad’s own combination of two...