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Textual Amendments
Enumeration type which determines the elevation property which has been measured or calculated.
Value | Definition |
---|---|
height | Elevation property measured along a plumb line in a direction opposite to Earth's gravity field (upwards). |
depth | Elevation property measured along a plumb line in a direction coincident to Earth's gravity field (downwards). |
Enumeration type which determines the elevation surface with regard to its relative adherence to the Earth's bare surface.
Value | Definition |
---|---|
DTM | Digital terrain model. |
DSM | Digital surface model.] |