Example GML Dictinary of unit definitions. Units Dictionary degree 9102 urn:ogc:def:uom:OGC:1.0:degree angle 1.74532925199433E-02 radian angle metre 9001 urn:ogc:def:uom:OGC:1.0:metre length unity 8805 urn:ogc:def:uom:OGC:1.0:unity scale factor