EPSG:26930

NAD83 / Alabama West

Available transformations
to EPSG:8255
EPSG:8255 - NAD83(CSRS)v7

  • Canada - Alberta. , accuracy 0.1 m, code 9795 (default) [grid]

Selected transformation

Method: NTv2

Grid Files: ABCSRSV7.GSB

Remarks: Also distributed through Alberta Environment and Parks Lands Division named ABCSRSV7.DAC.

Information source: NR Canada, https://webapp.geod.nrcan.gc.ca/geod/data-donnees/transformations.php

Revision date: 2023-07-17

Attributes

Unit: metre

Geodetic CRS: NAD83

Datum: North American Datum 1983

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Revision date: 1995-06-02

Scope: Engineering survey, topographic mapping.

Remarks: For applications with an accuracy of better than 1m, replaced by NAD83(HARN) / SPCS.

Area of use: United States (USA) - Alabama west of approximately 86°37'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["NAD83 / Alabama West",
            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 Alabama West zone (meter)",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",30,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",-87.5,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",0.999933333,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",600000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",0,
                    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) - Alabama west of approximately 86°37'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston."],
                BBOX[30.14,-88.48,35.02,-86.3]],
            ID["EPSG",26930]]],
    TARGETCRS[
        GEOGCRS["NAD83(CSRS)v7",
            DATUM["North American Datum of 1983 (CSRS) version 7",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon."],
                BBOX[38.21,-141.01,86.46,-40.73]],
            ID["EPSG",8255]]],
    ABRIDGEDTRANSFORMATION["NAD83 to NAD83(CSRS)v7 (1)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","ABCSRSV7.GSB"],
        USAGE[
            SCOPE["Transformation of coordinates at 0.1m level of accuracy."],
            AREA["Canada - Alberta."],
            BBOX[48.99,-120,60,-109.98]],
        ID["EPSG",9795],
        REMARK["Also distributed through Alberta Environment and Parks Lands Division named ABCSRSV7.DAC."]]]

Definition: PROJ.4

+proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 +x_0=600000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:26930","+proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 +x_0=600000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "NAD83 / Alabama West",
        "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 Alabama West zone (meter)",
            "method": {
                "name": "Transverse Mercator",
                "id": {
                    "authority": "EPSG",
                    "code": 9807
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 30,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": -87.5,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 0.999933333,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 600000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 0,
                    "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 26930
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "NAD83(CSRS)v7",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "North American Datum of 1983 (CSRS) version 7",
            "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": 8255
        }
    },
    "transformation": {
        "name": "NAD83 to NAD83(CSRS)v7 (1)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "ABCSRSV7.GSB",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9795
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=30"
	"lon_0=-87.5"
	"k=0.999933333"
	"x_0=600000"
	"y_0=0"
	"datum=NAD83"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 +x_0=600000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 +x_0=600000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs">
	</Layer>
</Map>