An Illustration of Surveying Data

Crosswalked To The Standard

Corner Point Measured Coordinate Attributes
which Correspond with Surveying Data


The box below illustrates in red attributes from the Corner Point Measured Coordinate entity of the Cadastral Data Content Standard which correspond with data commonly used by surveyors.

cnrptmeas.GIF (8090 bytes)

Corner Point Measured Coordinate - The Corner Point Measured Coordinate is a X,Y; X,Y,Z,; or Z value for a Corner Point.

X-Coordinate - This is the X Coordinate value or easting for a coordinate set.
Domain: numeric

Y-Coordinate - This is the Y Coordinate value or northing for a coordinate set.
Domain: numeric

Z-Coordinate - This is the Z Coordinate value or elevation, which may occur with or without associated X and Y values.
Domain: numeric

Horizontal Datum - The horizontal datum is the identification given to the reference system used for defining the coordinates of points. This definition comes from the FGDC Digital Geospatial Metadata.
Domain: North American Datum of 1927, North American Datum of 1983, free text

Vertical Datum - The vertical datum is the identification given to the reference system used for defining the elevation of points. This definition comes from the FGDC Digital Geospatial Metadata. The vertical datum used in this standard matches the Altitude Datum in the FGDC Digital Geospatial Metadata Standard, which is the identification given to the surface taken as the surface of reference from which altitudes are measured.
Domain: National Geodetic Vertical Datum of 1929, North American Vertical Datum of 1988, free text.

Note: this example and the others in the crosswalk illustrate correlations between commonly used surveying information and attributes in the Cadastral Data Content Standard.  However, this example is not meant to cover every possible surveying situation.  Thus you may find, upon reviewing the crosswalk, that you can think of instances when additional correlations can be found between the Standard and information surveyors collect.


Back to the Crosswalk Illustration
Back to Crosswalk Example
Back to Part Three, Using The Standard


Table Of Contents - Surveryors and the Cadastral Data Content Standard

Links to the other Cadastral Courses:
Learning The Cadastral Data Content Standard
County Recorders And The Cadastral Data Content Standard
Cadastral Information for GIS Specialists


Presented by the United States Department of the Interior Bureau of Land Management, and

the Federal Geographic Data Committee Cadastral Subcommittee