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Atmospheric pressure is the basis for the definition of the origin of the
associated vertical coordinate system axis.
The zero point of the vertical axis is defined by a surface that has meaning for the
purpose which the associated vertical measurements are used for.
The zero value of the associated vertical coordinate system axis is defined to approximate
a constant potential surface, usually the geoid.
In some cases, e.g. oil exploration and production, a geological feature, such as the top
or bottom of a geologically identifiable and meaningful subsurface layer, is used as a
vertical datum.
Returns the list of enumerations of the same kind as this enum.
The type of this vertical datum.
Returns the vertical datum type that matches the given string, or returns a
new one if none match it.
Returns the list of VerticalDatumType
s.
Creates a vertical datum from an enumerated type value.