GNTRANS
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GNTRANS Open
Datum Details [VALID]
Name: GNTRANS
Code: 1316
Type: vertical
Usage:
Usage Details
Scope: Engineering survey and topographic mapping for railway applications.
Extent:

Origin: Surface defined by the EGG97 quasi-geoid model modified in GNTRANS to achieve absolute position optimised for use with DB_REF.
Realisation Method:
Publication Date: 2003