====== Belgian Lambert 72 / Tweede Algemene Waterpassing ======

**EPSG 31370** 
  * Description : Belge 1972 / Belgian Lambert 72
  * Type : Projected horizontal
  * Area : Belgium - onshore

**EPSG : 5710** 
  * Description : Oostende height
  * Type : vertical
  * Area : Belgium - onshore

Orbit supports((Since [[110:orbitgis:updates:update_10_2|version 10.2]])) the Belge 1972 / Belgian Lambert 72 Gridcorrection as described by the NGI. \\
Both xy grid and z height corrections are implemented. 
\\ \\
To use this implementation the grid files BE_xyGridLb72.bin and BE_hBG03.bin need to be available in the Orbit crs directory. \\
Download, unzip and copy to the indicated directory :
  * Downloads : {{be_xygridlb72.zip|}} and {{be_hbg03.zip|}}
  * Orbit crs directory : <Orbit Installation directory>/program/system/crs
More information about :
  * Use and application of coordinate reference systems in Orbit : [[crs_orbit|]]
  * Technical specifications of these coordinate systems, read the available documentation on the website of the [[http://www.ngi.be/|NGI]].