US survey foot
No official usage.
None
United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West.
Data Source: EPSG v11.016 2024-08-31
Datum: World Geodetic System 1984 ensemble
Coordinate System: cartesian
Projection: BLM zone 17N (US survey foot)
Geodetic CRS: WGS 84
PROJCRS["WGS 84 / BLM 17N (ftUS)",
BASEGEOGCRS["WGS 84",
ENSEMBLE["World Geodetic System 1984 ensemble",
MEMBER["World Geodetic System 1984 (Transit)"],
MEMBER["World Geodetic System 1984 (G730)"],
MEMBER["World Geodetic System 1984 (G873)"],
MEMBER["World Geodetic System 1984 (G1150)"],
MEMBER["World Geodetic System 1984 (G1674)"],
MEMBER["World Geodetic System 1984 (G1762)"],
MEMBER["World Geodetic System 1984 (G2139)"],
MEMBER["World Geodetic System 1984 (G2296)"],
ELLIPSOID["WGS 84",6378137,298.257223563,
LENGTHUNIT["metre",1]],
ENSEMBLEACCURACY[2.0]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4326]],
CONVERSION["BLM zone 17N (US survey foot)",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",0,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-81,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.9996,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",1640416.67,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8806]],
PARAMETER["False northing",0,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["US survey foot",0.304800609601219]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["US survey foot",0.304800609601219]],
USAGE[
SCOPE["No official usage."],
AREA["United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West."],
BBOX[23.82,-84.09,29.94,-81.17]],
ID["EPSG",32667]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "WGS 84 / BLM 17N (ftUS)",
"base_crs": {
"name": "WGS 84",
"datum_ensemble": {
"name": "World Geodetic System 1984 ensemble",
"members": [
{
"name": "World Geodetic System 1984 (Transit)",
"id": {
"authority": "EPSG",
"code": 1166
}
},
{
"name": "World Geodetic System 1984 (G730)",
"id": {
"authority": "EPSG",
"code": 1152
}
},
{
"name": "World Geodetic System 1984 (G873)",
"id": {
"authority": "EPSG",
"code": 1153
}
},
{
"name": "World Geodetic System 1984 (G1150)",
"id": {
"authority": "EPSG",
"code": 1154
}
},
{
"name": "World Geodetic System 1984 (G1674)",
"id": {
"authority": "EPSG",
"code": 1155
}
},
{
"name": "World Geodetic System 1984 (G1762)",
"id": {
"authority": "EPSG",
"code": 1156
}
},
{
"name": "World Geodetic System 1984 (G2139)",
"id": {
"authority": "EPSG",
"code": 1309
}
},
{
"name": "World Geodetic System 1984 (G2296)",
"id": {
"authority": "EPSG",
"code": 1383
}
}
],
"ellipsoid": {
"name": "WGS 84",
"semi_major_axis": 6378137,
"inverse_flattening": 298.257223563
},
"accuracy": "2.0",
"id": {
"authority": "EPSG",
"code": 6326
}
},
"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": 4326
}
},
"conversion": {
"name": "BLM zone 17N (US survey foot)",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 0,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -81,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.9996,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 1640416.67,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 0,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
}
]
},
"scope": "No official usage.",
"area": "United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West.",
"bbox": {
"south_latitude": 23.82,
"west_longitude": -84.09,
"north_latitude": 29.94,
"east_longitude": -81.17
},
"id": {
"authority": "EPSG",
"code": 32667
}
}
{'crs_wkt': 'PROJCRS["WGS 84 / BLM 17N (ftUS)",BASEGEOGCRS["WGS '
'84",ENSEMBLE["World Geodetic System 1984 ensemble",MEMBER["World '
'Geodetic System 1984 (Transit)"],MEMBER["World Geodetic System '
'1984 (G730)"],MEMBER["World Geodetic System 1984 '
'(G873)"],MEMBER["World Geodetic System 1984 '
'(G1150)"],MEMBER["World Geodetic System 1984 '
'(G1674)"],MEMBER["World Geodetic System 1984 '
'(G1762)"],MEMBER["World Geodetic System 1984 '
'(G2139)"],MEMBER["World Geodetic System 1984 '
'(G2296)"],ELLIPSOID["WGS '
'84",6378137,298.257223563,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[2.0]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4326]],CONVERSION["BLM '
'zone 17N (US survey foot)",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-81,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.9996,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",1640416.67,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8806]],PARAMETER["False '
'northing",0,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting '
'(X)",east,ORDER[1],LENGTHUNIT["US survey '
'foot",0.304800609601219]],AXIS["northing '
'(Y)",north,ORDER[2],LENGTHUNIT["US survey '
'foot",0.304800609601219]],USAGE[SCOPE["No official '
'usage."],AREA["United States (USA) - Gulf of Mexico outer '
'continental shelf (GoM OCS) east of approximately 84°W - '
'protraction areas Gainesville; Tarpon Springs; St Petersburg; '
'Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; '
'Miami; Key '
'West."],BBOX[23.82,-84.09,29.94,-81.17]],ID["EPSG",32667]]',
'false_easting': 1640416.67,
'false_northing': 0.0,
'geographic_crs_name': 'WGS 84',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'World Geodetic System 1984 ensemble',
'inverse_flattening': 298.257223563,
'latitude_of_projection_origin': 0.0,
'longitude_of_central_meridian': -81.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'WGS 84 / BLM 17N (ftUS)',
'reference_ellipsoid_name': 'WGS 84',
'scale_factor_at_central_meridian': 0.9996,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314245179}