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Geodetic CRS: Latvia 2000 height
Datum: Latvian Height System 2000
Data source: EPSG
Information source: http://www.crs-geo.eu/
Revision date: 2020-12-14
Scope: Change of height to a different vertical reference surface.
Remarks: Determined at 134 points, SD 0.004m. Offset: mean 0.031m, minimum 0.025m, maximum 0.045m.
Method: Vertical Offset by Grid Interpolation (asc)
Area of use: Latvia - onshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Latvia 2000 height to EVRF2019 mean-tide height (1)", VERSION["EuG-Lva 2019m 2020-09"], SOURCECRS[ VERTCRS["Latvia 2000 height", VDATUM["Latvian Height System 2000"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",7700]]], TARGETCRS[ VERTCRS["EVRF2019 mean-tide height", VDATUM["European Vertical Reference Frame 2019 mean tide"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",9390]]], METHOD["Vertical Offset by Grid Interpolation (asc)", ID["EPSG",1085]], PARAMETERFILE["Vertical offset file","lv_2019m.asc"], INTERPOLATIONCRS[ GEOGCRS["ETRS89", ENSEMBLE["European Terrestrial Reference System 1989 ensemble", MEMBER["European Terrestrial Reference Frame 1989"], MEMBER["European Terrestrial Reference Frame 1990"], MEMBER["European Terrestrial Reference Frame 1991"], MEMBER["European Terrestrial Reference Frame 1992"], MEMBER["European Terrestrial Reference Frame 1993"], MEMBER["European Terrestrial Reference Frame 1994"], MEMBER["European Terrestrial Reference Frame 1996"], MEMBER["European Terrestrial Reference Frame 1997"], MEMBER["European Terrestrial Reference Frame 2000"], MEMBER["European Terrestrial Reference Frame 2005"], MEMBER["European Terrestrial Reference Frame 2014"], ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[0.1]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]]]], OPERATIONACCURACY[0.008], USAGE[ SCOPE["Change of height to a different vertical reference surface."], AREA["Latvia - onshore."], BBOX[55.67,20.87,58.09,28.24]], ID["EPSG",9580], REMARK["Determined at 134 points, SD 0.004m. Offset: mean 0.031m, minimum 0.025m, maximum 0.045m."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "Latvia 2000 height to EVRF2019 mean-tide height (1)", "source_crs": { "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" } ] }, "id": { "authority": "EPSG", "code": 7700 } }, "target_crs": { "type": "VerticalCRS", "name": "EVRF2019 mean-tide height", "datum": { "type": "VerticalReferenceFrame", "name": "European Vertical Reference Frame 2019 mean tide" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 9390 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "ETRS89", "datum_ensemble": { "name": "European Terrestrial Reference System 1989 ensemble", "members": [ { "name": "European Terrestrial Reference Frame 1989", "id": { "authority": "EPSG", "code": 1178 } }, { "name": "European Terrestrial Reference Frame 1990", "id": { "authority": "EPSG", "code": 1179 } }, { "name": "European Terrestrial Reference Frame 1991", "id": { "authority": "EPSG", "code": 1180 } }, { "name": "European Terrestrial Reference Frame 1992", "id": { "authority": "EPSG", "code": 1181 } }, { "name": "European Terrestrial Reference Frame 1993", "id": { "authority": "EPSG", "code": 1182 } }, { "name": "European Terrestrial Reference Frame 1994", "id": { "authority": "EPSG", "code": 1183 } }, { "name": "European Terrestrial Reference Frame 1996", "id": { "authority": "EPSG", "code": 1184 } }, { "name": "European Terrestrial Reference Frame 1997", "id": { "authority": "EPSG", "code": 1185 } }, { "name": "European Terrestrial Reference Frame 2000", "id": { "authority": "EPSG", "code": 1186 } }, { "name": "European Terrestrial Reference Frame 2005", "id": { "authority": "EPSG", "code": 1204 } }, { "name": "European Terrestrial Reference Frame 2014", "id": { "authority": "EPSG", "code": 1206 } } ], "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "accuracy": "0.1", "id": { "authority": "EPSG", "code": 6258 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4258 } }, "method": { "name": "Vertical Offset by Grid Interpolation (asc)", "id": { "authority": "EPSG", "code": 1085 } }, "parameters": [ { "name": "Vertical offset file", "value": "lv_2019m.asc", "id": { "authority": "EPSG", "code": 8732 } } ], "accuracy": "0.008", "scope": "Change of height to a different vertical reference surface.", "area": "Latvia - onshore.", "bbox": { "south_latitude": 55.67, "west_longitude": 20.87, "north_latitude": 58.09, "east_longitude": 28.24 }, "id": { "authority": "EPSG", "code": 9580 }, "remarks": "Determined at 134 points, SD 0.004m. Offset: mean 0.031m, minimum 0.025m, maximum 0.045m." }
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