Description: comment:This map projection is not formally recognised by the NGS because there is no State legislation for NAD83 defining the foot to be used. See code 10132 for official metric definition. ftUS required by AL DOT and used by other professional practioners.
| Property | Value |
|---|---|
| accuracy | -1.0 (xmls:double) |
| 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. (geoepsg:SPCS83_Alabama_West_zone__US_Survey_feet__area_of_use) |
| asProj4 | +proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 (...)+x_0=600000 +y_0=0 +ellps=GRS80 +step +proj=unitconvert +xy_in=m +xy_out=us-ft |
| asProjJSON | {'$schema':'https://proj.org/schemas/v0.2/projjson.schema.json','type':'Conversion','name':'SPCS83 Alabama West zone (US Survey feet)','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':1968500,'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}}],'id':{'authority':'EPSG','code':9747}} |
| asWKT | CONVERSION['SPCS83 Alabama West zone (US Survey feet)',METHOD['Transverse Mercator',ID['EPSG',9807]],PARAMETER['Latitude of natural origin',30,ANGLEUN (...)IT['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',1968500,LENGTHUNIT['US survey foot',0.304800609601219],ID['EPSG',8806]],PARAMETER['False northing',0,LENGTHUNIT['US survey foot',0.304800609601219],ID['EPSG',8807]],ID['EPSG',9747]] |
| has_ballpark_transformation | false (xmls:boolean) |
| method_name | Transverse Mercator (xsd:string) |
| parameter |
|
| usage | |
| type (rdf:type) | mercator projection (geoepsg:MercatorProjection) |
| comment (rdfs:comment) | This map projection is not formally recognised by the NGS because there is no State legislation for NAD83 defining the foot to be used. See code 10132 (...)for official metric definition. ftUS required by AL DOT and used by other professional practioners. |
| label (rdfs:label) | SPCS83 Alabama West zone (US Survey feet): Transverse Mercator (rdf:langString) (iso6391:en) |
| Is coordinate operation of | NAD83(2011) / Alabama West (ftUS) (geoepsg:9749) |
Metadata
| Property | Value |
|---|---|
| inDataset (void:inDataset) | geoepsg_dataset (geoepsg:geoepsg_dataset) [466048 geocrs:PlanarCoordinateSystem] |