EPSG
Instituto Hidrográfico, https://www.hidrografico.pt/
2023-08-07
Hydrography and nautical charting.
Offshore of Porto Santo island the Zero Hidrografico (CD Portugal) surface is defined to be 1.4m below the Cais da Vila vertical reference surface.
Portugal - Porto Santo island (Madeira archipelago) - nearshore.
(0,)
Definition: OGC Well Known Text 2 (2019)
CONCATENATEDOPERATION["Cais da Vila height to ZH Portugal depth (1)", VERSION["IH-Por Porto Santo"], SOURCECRS[ VERTCRS["Cais da Vila height", VDATUM["Cais da Vila"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",6179]]], TARGETCRS[ VERTCRS["ZH Portugal depth", VDATUM["Chart Datum Portugal "], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10349]]], STEP[ CONVERSION["Height <> Depth Conversion", METHOD["Height Depth Reversal", ID["EPSG",1068]], ID["EPSG",7812]]], STEP[ COORDINATEOPERATION["Cais da Vila depth to ZH Portugal depth (1)", VERSION["IH-Por Porto Santo"], SOURCECRS[ VERTCRS["Cais da Vila depth", VDATUM["Cais da Vila"], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10371]]], 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",-1.4, LENGTHUNIT["metre",1], ID["EPSG",8603]], OPERATIONACCURACY[0.0], ID["EPSG",10383], REMARK["Offshore of Porto Santo island the Zero Hidrografico (CD Portugal) surface is defined to be 1.4m below the Cais da Vila vertical reference surface."]]], OPERATIONACCURACY[0.0], USAGE[ SCOPE["Hydrography and nautical charting."], AREA["Portugal - Porto Santo island (Madeira archipelago) - nearshore."], BBOX[32.97,-16.46,33.16,-16.23]], ID["EPSG",10395], REMARK["Offshore of Porto Santo island the Zero Hidrografico (CD Portugal) surface is defined to be 1.4m below the Cais da Vila vertical reference surface."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ConcatenatedOperation", "name": "Cais da Vila height to ZH Portugal depth (1)", "source_crs": { "type": "VerticalCRS", "name": "Cais da Vila height", "datum": { "type": "VerticalReferenceFrame", "name": "Cais da Vila" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6179 } }, "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 } }, "steps": [ { "type": "Conversion", "name": "Height <> Depth Conversion", "method": { "name": "Height Depth Reversal", "id": { "authority": "EPSG", "code": 1068 } }, "id": { "authority": "EPSG", "code": 7812 } }, { "type": "Transformation", "name": "Cais da Vila depth to ZH Portugal depth (1)", "source_crs": { "type": "VerticalCRS", "name": "Cais da Vila depth", "datum": { "type": "VerticalReferenceFrame", "name": "Cais da Vila" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10371 } }, "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": -1.4, "unit": "metre", "id": { "authority": "EPSG", "code": 8603 } } ], "accuracy": "0.0", "id": { "authority": "EPSG", "code": 10383 }, "remarks": "Offshore of Porto Santo island the Zero Hidrografico (CD Portugal) surface is defined to be 1.4m below the Cais da Vila vertical reference surface." } ], "accuracy": "0.0", "scope": "Hydrography and nautical charting.", "area": "Portugal - Porto Santo island (Madeira archipelago) - nearshore.", "bbox": { "south_latitude": 32.97, "west_longitude": -16.46, "north_latitude": 33.16, "east_longitude": -16.23 }, "id": { "authority": "EPSG", "code": 10395 }, "remarks": "Offshore of Porto Santo island the Zero Hidrografico (CD Portugal) surface is defined to be 1.4m below the Cais da Vila vertical reference surface." }
Definition: Mapnik
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