The DCMI Point identifies a point in space using its geographic coordinates.
This document defines DCMI Point, a mechanism for indicating a point in space using its geographic coordinates and representing that information as a value string. Components of the value string correspond to the location coordinates in north and east directions, plus optionally elevation, and also allow the coordinate system and units to be specified, and a name if desired.
http://dublincore.org/documents/dcmi-point/