EPSG:9311 — NAD27 / US National Atlas Equal Area

Projekte · USA

Tanım Formatları

OGC WKT

PROJCS[
    "NAD27 / US National Atlas Equal Area",
    GEOGCS[
        "NAD27",
        DATUM[
            "North_American_Datum_1927",
            SPHEROID["Clarke 1866",6378206.4,294.978698213898],
            EXTENSION["PROJ4_GRIDS","NTv2_0.gsb"]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4267"]
    ],
    PROJECTION["Lambert_Azimuthal_Equal_Area"],
    PARAMETER["latitude_of_center",45],
    PARAMETER["longitude_of_center",-100],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","9311"]
]

WKT2

PROJCRS[
    "NAD27 / US National Atlas Equal Area",
    BASEGEOGCRS[
        "NAD27",
        DATUM[
            "North American Datum 1927",
            ELLIPSOID[
                "Clarke 1866",
                6378206.4,
                294.978698213898,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7008]
            ],
            ID["EPSG",6267]
        ],
        ID["EPSG",4267]
    ],
    CONVERSION[
        "US National Atlas Equal Area",
        METHOD["Lambert Azimuthal Equal Area (Spherical)",ID["EPSG",1027]],
        PARAMETER[
            "Latitude of natural origin",
            45,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            -100,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "False easting",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",3899]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",9311]
]

PROJ.4

+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs

Proj4js

Proj4js'a nasıl projeksiyon eklerim? →

proj4.defs("EPSG:9311", "+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 9311,
  "name": "NAD27 / US National Atlas Equal Area",
  "kind": "projected",
  "area": "USA",
  "unit": "metre",
  "bbox": [
    15.56,
    167.65,
    74.71,
    -65.69
  ],
  "proj4": "+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs"
}

PostGIS

PostGIS'a nasıl projeksiyon eklerim? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9311, 'EPSG', 9311, '+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs', 'PROJCS["NAD27 / US National Atlas Equal Area",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","NTv2_0.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",45],PARAMETER["longitude_of_center",-100],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9311"]]');

MapServer

MapServer'a nasıl projeksiyon eklerim? →

PROJECTION
  "+proj=laea"
  "+lat_0=45"
  "+lon_0=-100"
  "+x_0=0"
  "+y_0=0"
  "+ellps=clrk66"
  "+nadgrids=NTv2_0.gsb"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

GeoServer'a nasıl projeksiyon eklerim? →

9311=PROJCS["NAD27 / US National Atlas Equal Area",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","NTv2_0.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",45],PARAMETER["longitude_of_center",-100],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9311"]]

İlişkili Koordinat Sistemleri

Mevcut Dönüşümler (168)

Dönüşümler temel CRS'den alınmıştır: EPSG:4267 (NAD27)

Dönüşüm	Kaynak → Hedef	Hassasiyet (m)
NAD27 to NAD83 (1)	4267 → 4269	0.15
NAD27 to NAD83 (7)	4267 → 4269	0.15
NAD27 to NAD83(HARN) (22)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (1)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (2)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (3)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (4)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (5)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (6)	4267 → 4152	0.2
NAD27 to NAD83(HARN) (7)	4267 → 4152	0.2

US için Diğer CRS

North American Datum 1927 Kullanan Diğer CRS (194)

Sıkça Sorulan Sorular

EPSG:9311 projeksiyonunu GeoServer'a nasıl eklerim?

Aşağıdaki tanımı GeoServer yapılandırma dosyanıza ekleyin:

9311=PROJCS["NAD27 / US National Atlas Equal Area",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","NTv2_0.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",45],PARAMETER["longitude_of_center",-100],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9311"]]

GeoServer rehberinin tamamını okuyun →

EPSG:9311 projeksiyonunu PostGIS'e nasıl eklerim?

Aşağıdaki tanımı PostGIS yapılandırma dosyanıza ekleyin:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9311, 'EPSG', 9311, '+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs', 'PROJCS["NAD27 / US National Atlas Equal Area",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","NTv2_0.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",45],PARAMETER["longitude_of_center",-100],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9311"]]');

PostGIS rehberinin tamamını okuyun →

EPSG:9311 projeksiyonunu MapServer'da nasıl kullanırım?

Aşağıdaki tanımı MapServer yapılandırma dosyanıza ekleyin:

PROJECTION
  "+proj=laea"
  "+lat_0=45"
  "+lon_0=-100"
  "+x_0=0"
  "+y_0=0"
  "+ellps=clrk66"
  "+nadgrids=NTv2_0.gsb"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

MapServer rehberinin tamamını okuyun →

EPSG:9311 projeksiyonunu Proj4js ile nasıl kullanırım?

Aşağıdaki tanımı Proj4js yapılandırma dosyanıza ekleyin:

proj4.defs("EPSG:9311", "+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=m +no_defs +type=crs");

Proj4js rehberinin tamamını okuyun →

Tür

Projekte

Birim

metre

Geodetik CRS

NAD27

Datum

North American Datum 1927

Elipsoid

Clarke 1866

Başlangıç Meridyeni

Greenwich

Kullanım Alanı

USA

United States (USA) - onshore and offshore.

Koordinat Sistemi

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

WGS84 Sınırları

74.71 167.65-65.69 15.56

Veri Kaynağı

EPSG

Bilgi Kaynağı

United States Geological Survey, Western Geographic Science Center

Revizyon Tarihi

2020-03-26

Kapsam

Statistical analysis.

Açıklamalar

Uses spherical projection formulas. USGS documentation describes sphere as derived from GRS80/WGS 84 ellipsoid but that actually used is Clarke 1866. For 1:1million and smaller scale maps there is no significant difference.

Ülke Kodu

EPSG

9311