US survey foot
Engineering survey, topographic mapping.
None
United States (USA) - Iowa - counties of Allamakee; Benton; Black Hawk; Boone; Bremer; Buchanan; Buena Vista; Butler; Calhoun; Carroll; Cerro Gordo; Cherokee; Chickasaw; Clay; Clayton; Crawford; Delaware; Dickinson; Dubuque; Emmet; Fayette; Floyd; Franklin; Greene; Grundy; Hamilton; Hancock; Hardin; Howard; Humboldt; Ida; Jackson; Jones; Kossuth; Linn; Lyon; Marshall; Mitchell; Monona; O'Brien; Osceola; Palo Alto; Plymouth; Pocahontas; Sac; Sioux; Story; Tama; Webster; Winnebago; Winneshiek; Woodbury; Worth; Wright.
Data Source: EPSG v11.016 2024-08-31
Datum: North American Datum 1983
Coordinate System: Undefined
Projection: Undefined
Geodetic CRS: Undefined
COMPOUNDCRS["NAD83 / Iowa North (ftUS) + NAVD88 height (ftUS)",
PROJCRS["NAD83 / Iowa North (ftUS)",
BASEGEOGCRS["NAD83",
DATUM["North American Datum 1983",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4269]],
CONVERSION["SPCS83 Iowa North zone (US survey foot)",
METHOD["Lambert Conic Conformal (2SP)",
ID["EPSG",9802]],
PARAMETER["Latitude of false origin",41.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8821]],
PARAMETER["Longitude of false origin",-93.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8822]],
PARAMETER["Latitude of 1st standard parallel",43.2666666666667,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8823]],
PARAMETER["Latitude of 2nd standard parallel",42.0666666666667,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8824]],
PARAMETER["Easting at false origin",4921250,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8826]],
PARAMETER["Northing at false origin",3280833.3333,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8827]]],
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]]],
VERTCRS["NAVD88 height (ftUS)",
VDATUM["North American Vertical Datum 1988"],
CS[vertical,1],
AXIS["gravity-related height (H)",up,
LENGTHUNIT["US survey foot",0.304800609601219]]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["United States (USA) - Iowa - counties of Allamakee; Benton; Black Hawk; Boone; Bremer; Buchanan; Buena Vista; Butler; Calhoun; Carroll; Cerro Gordo; Cherokee; Chickasaw; Clay; Clayton; Crawford; Delaware; Dickinson; Dubuque; Emmet; Fayette; Floyd; Franklin; Greene; Grundy; Hamilton; Hancock; Hardin; Howard; Humboldt; Ida; Jackson; Jones; Kossuth; Linn; Lyon; Marshall; Mitchell; Monona; O'Brien; Osceola; Palo Alto; Plymouth; Pocahontas; Sac; Sioux; Story; Tama; Webster; Winnebago; Winneshiek; Woodbury; Worth; Wright."],
BBOX[41.85,-96.65,43.51,-90.15]],
ID["EPSG",8737]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "CompoundCRS",
"name": "NAD83 / Iowa North (ftUS) + NAVD88 height (ftUS)",
"components": [
{
"type": "ProjectedCRS",
"name": "NAD83 / Iowa North (ftUS)",
"base_crs": {
"name": "NAD83",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "North American Datum 1983",
"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": 4269
}
},
"conversion": {
"name": "SPCS83 Iowa North zone (US survey foot)",
"method": {
"name": "Lambert Conic Conformal (2SP)",
"id": {
"authority": "EPSG",
"code": 9802
}
},
"parameters": [
{
"name": "Latitude of false origin",
"value": 41.5,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8821
}
},
{
"name": "Longitude of false origin",
"value": -93.5,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8822
}
},
{
"name": "Latitude of 1st standard parallel",
"value": 43.2666666666667,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8823
}
},
{
"name": "Latitude of 2nd standard parallel",
"value": 42.0666666666667,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8824
}
},
{
"name": "Easting at false origin",
"value": 4921250,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8826
}
},
{
"name": "Northing at false origin",
"value": 3280833.3333,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8827
}
}
]
},
"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
}
}
]
}
},
{
"type": "VerticalCRS",
"name": "NAVD88 height (ftUS)",
"datum": {
"type": "VerticalReferenceFrame",
"name": "North American Vertical Datum 1988"
},
"coordinate_system": {
"subtype": "vertical",
"axis": [
{
"name": "Gravity-related height",
"abbreviation": "H",
"direction": "up",
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
}
]
}
}
],
"scope": "Engineering survey, topographic mapping.",
"area": "United States (USA) - Iowa - counties of Allamakee; Benton; Black Hawk; Boone; Bremer; Buchanan; Buena Vista; Butler; Calhoun; Carroll; Cerro Gordo; Cherokee; Chickasaw; Clay; Clayton; Crawford; Delaware; Dickinson; Dubuque; Emmet; Fayette; Floyd; Franklin; Greene; Grundy; Hamilton; Hancock; Hardin; Howard; Humboldt; Ida; Jackson; Jones; Kossuth; Linn; Lyon; Marshall; Mitchell; Monona; O'Brien; Osceola; Palo Alto; Plymouth; Pocahontas; Sac; Sioux; Story; Tama; Webster; Winnebago; Winneshiek; Woodbury; Worth; Wright.",
"bbox": {
"south_latitude": 41.85,
"west_longitude": -96.65,
"north_latitude": 43.51,
"east_longitude": -90.15
},
"id": {
"authority": "EPSG",
"code": 8737
}
}
{'crs_wkt': 'COMPOUNDCRS["NAD83 / Iowa North (ftUS) + NAVD88 height '
'(ftUS)",PROJCRS["NAD83 / Iowa North '
'(ftUS)",BASEGEOGCRS["NAD83",DATUM["North American Datum '
'1983",ELLIPSOID["GRS '
'1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4269]],CONVERSION["SPCS83 '
'Iowa North zone (US survey foot)",METHOD["Lambert Conic Conformal '
'(2SP)",ID["EPSG",9802]],PARAMETER["Latitude of false '
'origin",41.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude '
'of false '
'origin",-93.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude '
'of 1st standard '
'parallel",43.2666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude '
'of 2nd standard '
'parallel",42.0666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting '
'at false origin",4921250,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8826]],PARAMETER["Northing at '
'false origin",3280833.3333,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8827]]],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]]],VERTCRS["NAVD88 height '
'(ftUS)",VDATUM["North American Vertical Datum '
'1988"],CS[vertical,1],AXIS["gravity-related height '
'(H)",up,LENGTHUNIT["US survey '
'foot",0.304800609601219]]],USAGE[SCOPE["Engineering survey, '
'topographic mapping."],AREA["United States (USA) - Iowa - '
'counties of Allamakee; Benton; Black Hawk; Boone; Bremer; '
'Buchanan; Buena Vista; Butler; Calhoun; Carroll; Cerro Gordo; '
'Cherokee; Chickasaw; Clay; Clayton; Crawford; Delaware; '
'Dickinson; Dubuque; Emmet; Fayette; Floyd; Franklin; Greene; '
'Grundy; Hamilton; Hancock; Hardin; Howard; Humboldt; Ida; '
'Jackson; Jones; Kossuth; Linn; Lyon; Marshall; Mitchell; Monona; '
"O'Brien; Osceola; Palo Alto; Plymouth; Pocahontas; Sac; Sioux; "
'Story; Tama; Webster; Winnebago; Winneshiek; Woodbury; Worth; '
'Wright."],BBOX[41.85,-96.65,43.51,-90.15]],ID["EPSG",8737]]',
'false_easting': 4921250.0,
'false_northing': 3280833.3333,
'geographic_crs_name': 'NAD83',
'geopotential_datum_name': 'North American Vertical Datum 1988',
'grid_mapping_name': 'lambert_conformal_conic',
'horizontal_datum_name': 'North American Datum 1983',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 41.5,
'longitude_of_central_meridian': -93.5,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'NAD83 / Iowa North (ftUS)',
'reference_ellipsoid_name': 'GRS 1980',
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356,
'standard_parallel': (43.2666666666667, 42.0666666666667)}