EPSG:8787

NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)

Attributes

Geodetic CRS: NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)

Data source: EPSG

Information source: IOGP

Revision date: 2018-05-13

Scope: Engineering survey, topographic mapping.

Area of use: United States (USA) - Vermont - counties of Addison; Bennington; Caledonia; Chittenden; Essex; Franklin; Grand Isle; Lamoille; Orange; Orleans; Rutland; Washington; Windham; Windsor.

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SimpleMap

Center coordinates
1648326.96 501156.24

Projected bounds:
1387814.92 80177.93
1909141.67 923814.29

WGS84 bounds:
-73.44 42.72
-71.5 45.03

United States (USA) - Vermont - counties of Addison; Bennington; Caledonia; Chittenden; Essex; Franklin; Grand Isle; Lamoille; Orange; Orleans; Rutland; Washington; Windham; Windsor.
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Definition: OGC Well Known Text

COMPD_CS["NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)",
    PROJCS["NAD83 / Vermont (ftUS)",
        GEOGCS["NAD83",
            DATUM["North_American_Datum_1983",
                SPHEROID["GRS 1980",6378137,298.257222101,
                    AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","6269"]],
            PRIMEM["Greenwich",0,
                AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,
                AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","4269"]],
        PROJECTION["Transverse_Mercator"],
        PARAMETER["latitude_of_origin",42.5],
        PARAMETER["central_meridian",-72.5],
        PARAMETER["scale_factor",0.999964286],
        PARAMETER["false_easting",1640416.6667],
        PARAMETER["false_northing",0],
        UNIT["US survey foot",0.304800609601219,
            AUTHORITY["EPSG","9003"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","5646"]],
    VERT_CS["NAVD88 height (ftUS)",
        VERT_DATUM["North American Vertical Datum 1988",2005,
            AUTHORITY["EPSG","5103"]],
        UNIT["US survey foot",0.304800609601219,
            AUTHORITY["EPSG","9003"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","6360"]],
    AUTHORITY["EPSG","8787"]]

Definition: OGC Well Known Text 2 (2019)

COMPOUNDCRS["NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)",
    PROJCRS["NAD83 / Vermont (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 Vermont zone (US survey foot)",
            METHOD["Transverse Mercator",
                ID["EPSG",9807]],
            PARAMETER["Latitude of natural origin",42.5,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8801]],
            PARAMETER["Longitude of natural origin",-72.5,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8802]],
            PARAMETER["Scale factor at natural origin",0.999964286,
                SCALEUNIT["unity",1],
                ID["EPSG",8805]],
            PARAMETER["False easting",1640416.6667,
                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]]],
    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) - Vermont - counties of Addison; Bennington; Caledonia; Chittenden; Essex; Franklin; Grand Isle; Lamoille; Orange; Orleans; Rutland; Washington; Windham; Windsor."],
        BBOX[42.72,-73.44,45.03,-71.5]],
    ID["EPSG",8787]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_StatePlane_Vermont_FIPS_4400_Feet",
    GEOGCS["GCS_North_American_1983",
        DATUM["D_North_American_1983",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",1640416.6667],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",-72.5],
    PARAMETER["Scale_Factor",0.999964286],
    PARAMETER["Latitude_Of_Origin",42.5],
    UNIT["US survey foot",0.304800609601219]],
VERTCS["NAVD88_height_(ftUS)",
    VDATUM["North_American_Vertical_Datum_1988"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["US survey foot",0.304800609601219]]

Definition: PROJ.4

+proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:8787","+proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)",
    "components": [
        {
            "type": "ProjectedCRS",
            "name": "NAD83 / Vermont (ftUS)",
            "base_crs": {
                "type": "GeographicCRS",
                "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
                },
                "remarks": "Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."
            },
            "conversion": {
                "name": "SPCS83 Vermont zone (US survey foot)",
                "method": {
                    "name": "Transverse Mercator",
                    "id": {
                        "authority": "EPSG",
                        "code": 9807
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of natural origin",
                        "value": 42.5,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8801
                        }
                    },
                    {
                        "name": "Longitude of natural origin",
                        "value": -72.5,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8802
                        }
                    },
                    {
                        "name": "Scale factor at natural origin",
                        "value": 0.999964286,
                        "unit": "unity",
                        "id": {
                            "authority": "EPSG",
                            "code": 8805
                        }
                    },
                    {
                        "name": "False easting",
                        "value": 1640416.6667,
                        "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
                        }
                    }
                ]
            }
        },
        {
            "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) - Vermont - counties of Addison; Bennington; Caledonia; Chittenden; Essex; Franklin; Grand Isle; Lamoille; Orange; Orleans; Rutland; Washington; Windham; Windsor.",
    "bbox": {
        "south_latitude": 42.72,
        "west_longitude": -73.44,
        "north_latitude": 45.03,
        "east_longitude": -71.5
    },
    "id": {
        "authority": "EPSG",
        "code": 8787
    }
}

Definition: GeoServer

8787=COMPD_CS["NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Vermont (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",42.5],PARAMETER["central_meridian",-72.5],PARAMETER["scale_factor",0.999964286],PARAMETER["false_easting",1640416.6667],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","5646"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8787"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=42.5"
	"lon_0=-72.5"
	"k=0.999964286"
	"x_0=500000.00001016"
	"y_0=0"
	"datum=NAD83"
	"units=us-ft"
	"vunits=us-ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8787, 'EPSG', 8787, '+proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs', 'COMPD_CS["NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Vermont (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",42.5],PARAMETER["central_meridian",-72.5],PARAMETER["scale_factor",0.999964286],PARAMETER["false_easting",1640416.6667],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","5646"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8787"]]');