Add GCG2016 German geoid model file - Githubissues

OSGeo / PROJ-data

Repository for proj datum grids (for use by PROJ 7 or later)

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Add GCG2016 German geoid model file #109

Closed jjimenezshaw closed 11 months ago

jjimenezshaw commented 11 months ago

Since June 1 2023 BKG made GCG2016 publicly available https://gdz.bkg.bund.de/index.php/default/digitale-geodaten/geodaetische-basisdaten/quasigeoid-der-bundesrepublik-deutschland-quasigeoid.html

Transforms from ETRS89/DREF91/2016 (EPSG:10283) to DHHN2016 height (EPSG:7837)

Results can be tested at https://gibs.bkg.bund.de/geoid/gscomp.php?p=g

Fixes #107

PROJ related PR: https://github.com/OSGeo/PROJ/pull/3920