Source: EPSG:9368 — TPEN11 Grid + ODN height
compound horizontal + vertical reference system · Area of use: UK - Liverpool to Leeds
+proj=tmerc +lat_0=53.5 +lon_0=-2.25 +k=1 +x_0=203252.175 +y_0=407512.765 +ellps=GRS80 +units=m +geoidgrids=uk_os_OSGM15_GB.tif +geoid_crs=WGS84 +vunits=m +no_defs +type=crsMore about EPSG:9368 →