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Geodetic CRS: Baltic 1957 height
Datum: Baltic 1957
Data source: EPSG
Information source: EuroGeographics, http://www.crs-geo.eu
Revision date: 2021-06-08
Scope: Change of height to a different vertical reference surface.
Remarks: Determined at 242 points. RMS residual 0.012m, maximum residual 0.028m. Approximates the official transformation available through the CUZK transformation service at https://geoportal.cuzk.cz/ for comparison with transformation to EVRF2007 (CT 5202).
Method: Vertical Offset and Slope
Area of use: Czechia.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Baltic 1957 height to EVRF2019 mean-tide height (1)", VERSION["EuG-Cze"], SOURCECRS[ VERTCRS["Baltic 1957 height", VDATUM["Baltic 1957"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",8357]]], 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 and Slope", ID["EPSG",1046]], PARAMETER["Ordinate 1 of evaluation point",49.9166666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8617]], PARAMETER["Ordinate 2 of evaluation point",15.25, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8618]], PARAMETER["Vertical Offset",0.13, LENGTHUNIT["metre",1], ID["EPSG",8603]], PARAMETER["Inclination in latitude",0.036, ANGLEUNIT["arc-second",4.84813681109536E-06], ID["EPSG",8730]], PARAMETER["Inclination in longitude",0.006, ANGLEUNIT["arc-second",4.84813681109536E-06], ID["EPSG",8731]], 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[0.01], USAGE[ SCOPE["Change of height to a different vertical reference surface."], AREA["Czechia."], BBOX[48.58,12.09,51.06,18.86]], ID["EPSG",9744], REMARK["Determined at 242 points. RMS residual 0.012m, maximum residual 0.028m. Approximates the official transformation available through the CUZK transformation service at https://geoportal.cuzk.cz/ for comparison with transformation to EVRF2007 (CT 5202)."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "Baltic 1957 height to EVRF2019 mean-tide height (1)", "source_crs": { "type": "VerticalCRS", "name": "Baltic 1957 height", "datum": { "type": "VerticalReferenceFrame", "name": "Baltic 1957" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 8357 } }, "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 and Slope", "id": { "authority": "EPSG", "code": 1046 } }, "parameters": [ { "name": "Ordinate 1 of evaluation point", "value": 49.9166666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8617 } }, { "name": "Ordinate 2 of evaluation point", "value": 15.25, "unit": "degree", "id": { "authority": "EPSG", "code": 8618 } }, { "name": "Vertical Offset", "value": 0.13, "unit": "metre", "id": { "authority": "EPSG", "code": 8603 } }, { "name": "Inclination in latitude", "value": 0.036, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8730 } }, { "name": "Inclination in longitude", "value": 0.006, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8731 } } ], "accuracy": "0.01", "scope": "Change of height to a different vertical reference surface.", "area": "Czechia.", "bbox": { "south_latitude": 48.58, "west_longitude": 12.09, "north_latitude": 51.06, "east_longitude": 18.86 }, "id": { "authority": "EPSG", "code": 9744 }, "remarks": "Determined at 242 points. RMS residual 0.012m, maximum residual 0.028m. Approximates the official transformation available through the CUZK transformation service at https://geoportal.cuzk.cz/ for comparison with transformation to EVRF2007 (CT 5202)." }
Definition: Mapnik
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