EPSG
Instituto Hidrográfico, https://www.hidrografico.pt/
2023-08-07
Hydrography and nautical charting.
Offshore of Flores and Corvo islands the Zero Hidrografico (CD Portugal) surface is defined to be 1.0m below the Santa Cruz das Flores vertical reference surface.
Portugal - western Azores - Flores and Corvo islands - nearshore.
(0,)
Definition: OGC Well Known Text 2 (2019)
CONCATENATEDOPERATION["Santa Cruz das Flores height to ZH Portugal depth (1)", VERSION["IH-Por Flores"], SOURCECRS[ VERTCRS["Santa Cruz das Flores height", VDATUM["Santa Cruz das Flores"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",6185]]], 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["Santa Cruz das Flores depth to ZH Portugal depth (1)", VERSION["IH-Por Flores"], SOURCECRS[ VERTCRS["Santa Cruz das Flores depth", VDATUM["Santa Cruz das Flores"], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10372]]], 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, LENGTHUNIT["metre",1], ID["EPSG",8603]], OPERATIONACCURACY[0.0], ID["EPSG",10384], REMARK["Offshore of Flores and Corvo islands the Zero Hidrografico (CD Portugal) surface is defined to be 1.0m below the Santa Cruz das Flores vertical reference surface."]]], OPERATIONACCURACY[0.0], USAGE[ SCOPE["Hydrography and nautical charting."], AREA["Portugal - western Azores - Flores and Corvo islands - nearshore."], BBOX[39.32,-31.34,39.78,-31.01]], ID["EPSG",10396], REMARK["Offshore of Flores and Corvo islands the Zero Hidrografico (CD Portugal) surface is defined to be 1.0m below the Santa Cruz das Flores vertical reference surface."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ConcatenatedOperation", "name": "Santa Cruz das Flores height to ZH Portugal depth (1)", "source_crs": { "type": "VerticalCRS", "name": "Santa Cruz das Flores height", "datum": { "type": "VerticalReferenceFrame", "name": "Santa Cruz das Flores" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6185 } }, "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": "Santa Cruz das Flores depth to ZH Portugal depth (1)", "source_crs": { "type": "VerticalCRS", "name": "Santa Cruz das Flores depth", "datum": { "type": "VerticalReferenceFrame", "name": "Santa Cruz das Flores" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10372 } }, "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, "unit": "metre", "id": { "authority": "EPSG", "code": 8603 } } ], "accuracy": "0.0", "id": { "authority": "EPSG", "code": 10384 }, "remarks": "Offshore of Flores and Corvo islands the Zero Hidrografico (CD Portugal) surface is defined to be 1.0m below the Santa Cruz das Flores vertical reference surface." } ], "accuracy": "0.0", "scope": "Hydrography and nautical charting.", "area": "Portugal - western Azores - Flores and Corvo islands - nearshore.", "bbox": { "south_latitude": 39.32, "west_longitude": -31.34, "north_latitude": 39.78, "east_longitude": -31.01 }, "id": { "authority": "EPSG", "code": 10396 }, "remarks": "Offshore of Flores and Corvo islands the Zero Hidrografico (CD Portugal) surface is defined to be 1.0m below the Santa Cruz das Flores vertical reference surface." }
Definition: Mapnik
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