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Unit: foot
Data source: EPSG
Information source: IOGP
Revision date: 2019-02-16
Orientation: down
Abbreviation: d
Axis order: 1..
Coordinate system: Vertical CS. Axis: local depth (d). Orientation: down. UoM: ft.
Description: Down axis used in 1D vertical and 3D engineering coordinate systems for wellbore survey.