metre
Engineering survey, topographic mapping.
None
United States (USA) - Alaska - east of 141°W; i.e. Panhandle.
Data Source: EPSG v11.022 2024-11-05
Datum: NAD83 (National Spatial Reference System 2011)
Coordinate System: cartesian
Projection: SPCS83 Alaska zone 1 (meter)
Geodetic CRS: NAD83(2011)
PROJCRS["NAD83(2011) / Alaska zone 1",
BASEGEOGCRS["NAD83(2011)",
DATUM["NAD83 (National Spatial Reference System 2011)",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",6318]],
CONVERSION["SPCS83 Alaska zone 1 (meter)",
METHOD["Hotine Oblique Mercator (variant A)",
ID["EPSG",9812]],
PARAMETER["Latitude of projection centre",57,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8811]],
PARAMETER["Longitude of projection centre",-133.666666666667,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8812]],
PARAMETER["Azimuth at projection centre",323.130102361111,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8813]],
PARAMETER["Angle from Rectified to Skew Grid",323.130102361111,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8814]],
PARAMETER["Scale factor at projection centre",0.9999,
SCALEUNIT["unity",1],
ID["EPSG",8815]],
PARAMETER["False easting",5000000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",-5000000,
LENGTHUNIT["metre",1],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["United States (USA) - Alaska - east of 141°W; i.e. Panhandle."],
BBOX[54.61,-141,60.35,-129.99]],
ID["EPSG",6394]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "NAD83(2011) / Alaska zone 1",
"base_crs": {
"name": "NAD83(2011)",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "NAD83 (National Spatial Reference System 2011)",
"ellipsoid": {
"name": "GRS 1980",
"semi_major_axis": 6378137,
"inverse_flattening": 298.257222101
}
},
"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": 6318
}
},
"conversion": {
"name": "SPCS83 Alaska zone 1 (meter)",
"method": {
"name": "Hotine Oblique Mercator (variant A)",
"id": {
"authority": "EPSG",
"code": 9812
}
},
"parameters": [
{
"name": "Latitude of projection centre",
"value": 57,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8811
}
},
{
"name": "Longitude of projection centre",
"value": -133.666666666667,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8812
}
},
{
"name": "Azimuth at projection centre",
"value": 323.130102361111,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8813
}
},
{
"name": "Angle from Rectified to Skew Grid",
"value": 323.130102361111,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8814
}
},
{
"name": "Scale factor at projection centre",
"value": 0.9999,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8815
}
},
{
"name": "False easting",
"value": 5000000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": -5000000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "United States (USA) - Alaska - east of 141°W; i.e. Panhandle.",
"bbox": {
"south_latitude": 54.61,
"west_longitude": -141,
"north_latitude": 60.35,
"east_longitude": -129.99
},
"id": {
"authority": "EPSG",
"code": 6394
}
}
{'crs_wkt': 'PROJCRS["NAD83(2011) / Alaska zone '
'1",BASEGEOGCRS["NAD83(2011)",DATUM["NAD83 (National Spatial '
'Reference System 2011)",ELLIPSOID["GRS '
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