Geodetic CRS: Cascais height
Datum: Cascais
Data source: EPSG
Information source: Instituto Hidrográfico, https://www.hidrografico.pt/
Revision date: 2023-08-07
Scope: Change of depth to a different vertical reference surface.
Remarks: The Zero Hidrografico (CD Portugal) surface is defined to be 2.0m below the Cascais vertical reference surface offshore mainland Portugal and 2.08 metres below the Cascais vertical reference surface in the Tagus estuary off Lisbon (see CT 10381).
Method: Vertical Offset
Area of use: Portugal - mainland - nearshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Cascais depth to ZH Portugal depth (1)", VERSION["IH-Por mainland"], SOURCECRS[ VERTCRS["Cascais depth", VDATUM["Cascais"], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10364]]], TARGETCRS[ VERTCRS["ZH Portugal depth", VDATUM["Chart Datum Portugal "], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10349]]], METHOD["Vertical Offset", ID["EPSG",9616]], PARAMETER["Vertical Offset",-2, LENGTHUNIT["metre",1], ID["EPSG",8603]], OPERATIONACCURACY[0.0], USAGE[ SCOPE["Change of depth to a different vertical reference surface."], AREA["Portugal - mainland - nearshore."], BBOX[36.9,-9.57,41.88,-7.39]], ID["EPSG",10380], REMARK["The Zero Hidrografico (CD Portugal) surface is defined to be 2.0m below the Cascais vertical reference surface offshore mainland Portugal and 2.08 metres below the Cascais vertical reference surface in the Tagus estuary off Lisbon (see CT 10381)."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "Cascais depth to ZH Portugal depth (1)", "source_crs": { "type": "VerticalCRS", "name": "Cascais depth", "datum": { "type": "VerticalReferenceFrame", "name": "Cascais" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10364 } }, "target_crs": { "type": "VerticalCRS", "name": "ZH Portugal depth", "datum": { "type": "VerticalReferenceFrame", "name": "Chart Datum Portugal " }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10349 } }, "method": { "name": "Vertical Offset", "id": { "authority": "EPSG", "code": 9616 } }, "parameters": [ { "name": "Vertical Offset", "value": -2, "unit": "metre", "id": { "authority": "EPSG", "code": 8603 } } ], "accuracy": "0.0", "scope": "Change of depth to a different vertical reference surface.", "area": "Portugal - mainland - nearshore.", "bbox": { "south_latitude": 36.9, "west_longitude": -9.57, "north_latitude": 41.88, "east_longitude": -7.39 }, "id": { "authority": "EPSG", "code": 10380 }, "remarks": "The Zero Hidrografico (CD Portugal) surface is defined to be 2.0m below the Cascais vertical reference surface offshore mainland Portugal and 2.08 metres below the Cascais vertical reference surface in the Tagus estuary off Lisbon (see CT 10381)." }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=geogoffset +dh=-2"> <Layer srs="+proj=geogoffset +dh=-2"> </Layer> </Map>