EPSG:10481 NAD83 / TWDB GM
Projected system (Albers Equal Area) in use: USA - Texas. The full definition below, and conversion in one click.
| Code | EPSG:10481 |
|---|---|
| Name | NAD83 / TWDB GM |
| Type | Projected system — Albers Equal Area |
| Area of use |
USA - Texas United States (USA) - Texas. |
| Bounds | W -106,66° · S 25,83° · E -93,50° · N 36,50° |
| Countries | United States |
| Datum | North American Datum 1983 |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:4269 — NAD83 |
| Unit | US survey foot (X east, Y north) |
| Transformation to WGS 84 | NAD83 to WGS 84 (1) (EPSG:1188) — accuracy 4 m |
| Scope | Mapping and data analysis for Texas Water Development Board groundwater modeling. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 31.25 | degree |
| Longitude of false origin | -100 | degree |
| Latitude of 1st standard parallel | 27.5 | degree |
| Latitude of 2nd standard parallel | 35 | degree |
| Easting at false origin | 4921250 | US survey foot |
| Northing at false origin | 19685000 | US survey foot |
proj4 definition
+proj=aea +lat_0=31.25 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +a=6378137 +rf=298.257222101 +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:10481.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_TWDB_GM",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["Albers"],PARAMETER["False_Easting",4921250.0],PARAMETER["False_Northing",19685000.0],PARAMETER["Central_Meridian",-100.0],PARAMETER["Standard_Parallel_1",27.5],PARAMETER["Standard_Parallel_2",35.0],PARAMETER["Latitude_Of_Origin",31.25],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:8529NAD83(2011) / KS RCS zone 12
- EPSG:8531NAD83(2011) / KS RCS zone 13
- EPSG:8533NAD83(2011) / KS RCS zone 14
- EPSG:8534NAD83(2011) / KS RCS zone 15
- EPSG:8535NAD83(2011) / KS RCS zone 16
- EPSG:8536NAD83(2011) / KS RCS zone 17
- EPSG:8538NAD83(2011) / KS RCS zone 18
- EPSG:8539NAD83(2011) / KS RCS zone 19
- EPSG:8540NAD83(2011) / KS RCS zone 20
- EPSG:8826NAD83 / Idaho Transverse Mercator
- EPSG:8860NAD83(FBN)
- EPSG:9075NAD83(PACP00)
- EPSG:9311NAD27 / US National Atlas Equal Area
- EPSG:9674NAD83 / USFS R6 Albers
- EPSG:9748NAD83(2011) / Alabama East (ftUS)
- EPSG:9749NAD83(2011) / Alabama West (ftUS)
- EPSG:10516NAD83(2011) / Adjusted Jackson (ftUS)
- EPSG:10622NAD83(2011) / San Francisco SFO-B18 (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.