ground-truthv.
/ˈɡraʊn(d)truːθ/, U.S. /ˈɡraʊn(d)ˌtruθ/ transitive. To confirm or validate directly (information or data derived indirectly), esp. (in remote sensing) by direct observation on the ground, rather than by interpretation of remotely obtained data; to make observations of (land, an area, etc.) directly on the ground, esp. in order to confirm or validate data obtained indirectly.
ΚΠ
1984 Amer. Antiq. 49 867/2 Phase II concentrated on ‘ground truthing’ previously imaged road segments and documenting the nature of road construction. Results indicate that low angle light air photo imagery was extremely sensitive and reliable.
1996 Jrnl. Soil & Water Conservation Jan.–Feb. 22/1 Few such inventories have been ‘ground-truthed’ to the degree of NCSS soil maps.
2002 Record (Bergen County, New Jersey) (Nexis) 12 May i1 Zarate and Melhame are charged with ‘ground-truthing’ that work—traveling to each potential location to confirm whether pools of water exist.
Derivatives
ˈground-truthed adj.
ΚΠ
1988 Conservation Biol. 2 64/1 We look forward to the day when appropriately ground-truthed satellite data can be used to monitor tsetse fly distribution.
2001 Science (Nexis) 12 Jan. 297 Geochemical signatures in otolith cores from spawning 2-year-old weakfish matched well with the ground-truthed signatures from whole otoliths of juvenile weakfish.
This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).
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v.1984