Engineering survey and topographic mapping for railway applications.
Replaces GNTRANS height [also called GNTRANS2003 height] (CRS code 9923). Approximates national DHHN2016 height system (CRS code 7837) to around 1cm in lowlands and 2cm in high mountains.
51.18 10.45
47.27 5.86
55.09 15.04
5.86 47.27
15.04 55.09
Definition: OGC Well Known Text 2 (2019)
VERTCRS["GNTRANS2016 height", VDATUM["GNTRANS2016"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey and topographic mapping for railway applications."], AREA["Germany - onshore - states of Baden-Wurtemberg, Bayern, Berlin, Brandenburg, Bremen, Hamburg, Hessen, Mecklenburg-Vorpommern, Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Saarland, Sachsen, Sachsen-Anhalt, Schleswig-Holstein, Thuringen."], BBOX[47.27,5.86,55.09,15.04]], ID["EPSG",9927]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "GNTRANS2016 height", "datum": { "type": "VerticalReferenceFrame", "name": "GNTRANS2016" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Engineering survey and topographic mapping for railway applications.", "area": "Germany - onshore - states of Baden-Wurtemberg, Bayern, Berlin, Brandenburg, Bremen, Hamburg, Hessen, Mecklenburg-Vorpommern, Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Saarland, Sachsen, Sachsen-Anhalt, Schleswig-Holstein, Thuringen.", "bbox": { "south_latitude": 47.27, "west_longitude": 5.86, "north_latitude": 55.09, "east_longitude": 15.04 }, "id": { "authority": "EPSG", "code": 9927 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+vunits=m +no_defs +type=crs"> <Layer srs="+vunits=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9927, 'EPSG', 9927, '+vunits=m +no_defs +type=crs', 'VERT_CS["GNTRANS2016 height",VERT_DATUM["GNTRANS2016",2005,AUTHORITY["EPSG","1318"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9927"]]');