US survey foot
Mapping and data analysis for Texas Water Development Board groundwater modeling.
None
United States (USA) - Texas.
Data Source: EPSG v11.016 2024-08-31
Datum: North American Datum 1983
Coordinate System: cartesian
Projection: TWDB Groundwater Modeling (US survey foot)
Geodetic CRS: NAD83
PROJCRS["NAD83 / TWDB GM",
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["TWDB Groundwater Modeling (US survey foot)",
METHOD["Albers Equal Area",
ID["EPSG",9822]],
PARAMETER["Latitude of false origin",31.25,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8821]],
PARAMETER["Longitude of false origin",-100,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8822]],
PARAMETER["Latitude of 1st standard parallel",27.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8823]],
PARAMETER["Latitude of 2nd standard parallel",35,
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",19685000,
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]],
USAGE[
SCOPE["Mapping and data analysis for Texas Water Development Board groundwater modeling."],
AREA["United States (USA) - Texas."],
BBOX[25.83,-106.66,36.5,-93.5]],
ID["EPSG",10481]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "NAD83 / TWDB GM",
"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": "TWDB Groundwater Modeling (US survey foot)",
"method": {
"name": "Albers Equal Area",
"id": {
"authority": "EPSG",
"code": 9822
}
},
"parameters": [
{
"name": "Latitude of false origin",
"value": 31.25,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8821
}
},
{
"name": "Longitude of false origin",
"value": -100,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8822
}
},
{
"name": "Latitude of 1st standard parallel",
"value": 27.5,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8823
}
},
{
"name": "Latitude of 2nd standard parallel",
"value": 35,
"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": 19685000,
"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
}
}
]
},
"scope": "Mapping and data analysis for Texas Water Development Board groundwater modeling.",
"area": "United States (USA) - Texas.",
"bbox": {
"south_latitude": 25.83,
"west_longitude": -106.66,
"north_latitude": 36.5,
"east_longitude": -93.5
},
"id": {
"authority": "EPSG",
"code": 10481
}
}
{'crs_wkt': 'PROJCRS["NAD83 / TWDB GM",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["TWDB '
'Groundwater Modeling (US survey foot)",METHOD["Albers Equal '
'Area",ID["EPSG",9822]],PARAMETER["Latitude of false '
'origin",31.25,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude '
'of false '
'origin",-100,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude '
'of 1st standard '
'parallel",27.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude '
'of 2nd standard '
'parallel",35,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",19685000,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]],USAGE[SCOPE["Mapping and data analysis '
'for Texas Water Development Board groundwater '
'modeling."],AREA["United States (USA) - '
'Texas."],BBOX[25.83,-106.66,36.5,-93.5]],ID["EPSG",10481]]',
'false_easting': 4921250.0,
'false_northing': 19685000.0,
'geographic_crs_name': 'NAD83',
'grid_mapping_name': 'albers_conical_equal_area',
'horizontal_datum_name': 'North American Datum 1983',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 31.25,
'longitude_of_central_meridian': -100.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'NAD83 / TWDB GM',
'reference_ellipsoid_name': 'GRS 1980',
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356,
'standard_parallel': (27.5, 35.0)}