https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/37a6c8e2-f2ac-48a4-a4fa-d80f700f68db TRANSPORTATION Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=The roads and equipment necessary for the movement of goods or passengers. New Value=The roads and equipment necessary for the movement of goods or passengers. Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value="http://www.Dictionary.com" New Value=http://www.Dictionary.com Date=2026-02-18 User Id=system System Note=Added narrower relation from TRANSPORTATION [37a6c8e2-f2ac-48a4-a4fa-d80f700f68db] to ROADS [648e6116-5f0c-4314-86a8-ede6dda6bbc1] Date=2026-02-18 User Id=system System Note=Added narrower relation from TRANSPORTATION [37a6c8e2-f2ac-48a4-a4fa-d80f700f68db] to RAILROADS [b77fab47-ee9d-451e-8499-f2c5b325d6bb] The roads and equipment necessary for the movement of goods or passengers. 2017-03-10 08:25:21.0