EPSG:3640 NAD83(NSRS2007) / Oklahoma North (ftUS)
Projected system (Lambert Conic Conformal (2SP)) in use: USA - Oklahoma - SPCS - N. The full definition below, and conversion in one click.
| Code | EPSG:3640 |
|---|---|
| Name | NAD83(NSRS2007) / Oklahoma North (ftUS) |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use |
USA - Oklahoma - SPCS - N United States (USA) - Oklahoma - counties of Adair; Alfalfa; Beaver; Blaine; Canadian; Cherokee; Cimarron; Craig; Creek; Custer; Delaware; Dewey; Ellis; Garfield; Grant; Harper; Kay; Kingfisher; Lincoln; Logan; Major; Mayes; Muskogee; Noble; Nowata; Okfuskee; Oklahoma; Okmulgee; Osage; Ottawa; Pawnee; Payne; Roger Mills; Rogers; Sequoyah; Texas; Tulsa; Wagoner; Washington; Woods; Woodward. |
| Bounds | W -103,00° · S 35,27° · E -94,42° · N 37,01° |
| Countries | United States |
| Datum | NAD83 (National Spatial Reference System 2007) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:4759 — NAD83(NSRS2007) |
| Unit | US survey foot (X east, Y north) |
| Transformation to WGS 84 | NAD83(NSRS2007) to WGS 84 (1) (EPSG:15931) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 35 | degree |
| Longitude of false origin | -98 | degree |
| Latitude of 1st standard parallel | 36.766666666666666 | degree |
| Latitude of 2nd standard parallel | 35.56666666666667 | degree |
| Easting at false origin | 1968500 | US survey foot |
| Northing at false origin | 0 | US survey foot |
proj4 definition
+proj=lcc +lat_0=35 +lon_0=-98 +lat_1=36.7666666666667 +lat_2=35.5666666666667 +x_0=600000 +y_0=0 +ellps=GRS80 +units=us-ft +towgs84=0,0,0 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:3640.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_NSRS2007_StatePlane_Oklahoma_North_FIPS_3501_Ft_US",GEOGCS["GCS_NAD_1983_NSRS2007",DATUM["D_NAD_1983_NSRS2007",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1968500.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-98.0],PARAMETER["Standard_Parallel_1",36.7666666666667],PARAMETER["Standard_Parallel_2",35.5666666666667],PARAMETER["Latitude_Of_Origin",35.0],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:3631NAD83(NSRS2007) / North Carolina
- EPSG:3632NAD83(NSRS2007) / North Carolina (ftUS)
- EPSG:3633NAD83(NSRS2007) / North Dakota North
- EPSG:3634NAD83(NSRS2007) / North Dakota North (ft)
- EPSG:3635NAD83(NSRS2007) / North Dakota South
- EPSG:3636NAD83(NSRS2007) / North Dakota South (ft)
- EPSG:3637NAD83(NSRS2007) / Ohio North
- EPSG:3638NAD83(NSRS2007) / Ohio South
- EPSG:3639NAD83(NSRS2007) / Oklahoma North
- EPSG:3641NAD83(NSRS2007) / Oklahoma South
- EPSG:3642NAD83(NSRS2007) / Oklahoma South (ftUS)
- EPSG:3643NAD83(NSRS2007) / Oregon LCC (m)
- EPSG:3644NAD83(NSRS2007) / Oregon GIC Lambert (ft)
- EPSG:3645NAD83(NSRS2007) / Oregon North
- EPSG:3646NAD83(NSRS2007) / Oregon North (ft)
- EPSG:3647NAD83(NSRS2007) / Oregon South
- EPSG:3648NAD83(NSRS2007) / Oregon South (ft)
- EPSG:3649NAD83(NSRS2007) / Pennsylvania North
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.