metre
EPSG
Latvian Geospatial Information Agency via Eurogeographics, http://www.crs-geo.eu/
2015-12-20
Geodesy, engineering survey, topographic mapping.
In Latvia replaces Baltic 1977 system (CRS code 5705) from December 2014.
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Latvia 2000 height", VDATUM["Latvian Height System 2000"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Latvia - onshore."], BBOX[55.67,20.87,58.09,28.24]], ID["EPSG",7700]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Latvia 2000 height", "datum": { "type": "VerticalReferenceFrame", "name": "Latvian Height System 2000" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Latvia - onshore.", "bbox": { "south_latitude": 55.67, "west_longitude": 20.87, "north_latitude": 58.09, "east_longitude": 28.24 }, "id": { "authority": "EPSG", "code": 7700 } }
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 ( 7700, 'EPSG', 7700, '+vunits=m +no_defs +type=crs', 'VERT_CS["Latvia 2000 height",VERT_DATUM["Latvian Height System 2000",2005,AUTHORITY["EPSG","1162"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","7700"]]');