Predefined spatial reference systems

The spatial_references table contains over 1000 predefined spatial reference systems.

The following table lists the predefined spatial reference systems.

Table 1. Predefined spatial reference systems

Authority Authority IDs (SRIDs) Description
EPSG 2000 - 2999 Projection systems defined by the EPSG
EPSG 46008 GEOGCS NAD 1927
EPSG 4759 GEOGCS NAD 1983_NSRS2007
EPSG 4322 GEOGCS WGS 1972
EPSG 4326 GEOGCS WGS 1984
EPSG 4760 GEOGCS WGS 1966
EPSG 32601 - 23760 WGS 1984 UTM Zones
ESRI 54001 - 54004

54008 - 54019

54021 - 54032

54034

54042 - 54046

54048 - 54053

Various world projection systems

The false origin and scale values for the system are derived from the Projected Bounds of the underlying Coordinate System. For example, EPSG 2193 (NZGD_2000_New_Zealand_Transverse_Mercator) derives the falsex, falsey and xyunits values based on the extent of the projection system:

  • falsex = -6020520.00000
  • falsey = -1997720.00000
  • xyunits = 375371289.4930

The z and m coordinates for all predefined spatial reference systems have the following values in the following columns:

  • falsez = -50000.0
  • zunits = 1000.0
  • falsem = -1000.0
  • munits = 1000.0