Components of a CRS
For each CRS definition, answer the questions below. Feel free to consult the internet, the textbook, and your classmates as needed.
- Is it a projected or geographic CRS?
- What is the CRS name?
- What datum does it use?
- What ellipsoid does it use?
- What is the CRS’s SRID?
- What is the projection name? If none, simply write “NA.”
PROJCS["Mexican Datum of 1993 / UTM zone 12N",
GEOGCS["Mexican Datum of 1993",
DATUM["Mexican_Datum_of_1993",
SPHEROID["GRS 1980",6378137,298.257222101,
AUTHORITY["EPSG","7019"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","1042"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4483"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",-111],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",0],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Easting",EAST],
AXIS["Northing",NORTH],
AUTHORITY["EPSG","4485"]]
GEOGCS["NAD83",
DATUM["North_American_Datum_1983",
SPHEROID["GRS 1980",6378137,298.257222101,
AUTHORITY["EPSG","7019"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6269"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4269"]]
+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
PROJCS["NAD83(NSRS2007) / Minnesota North",
GEOGCS["NAD83(NSRS2007)",
DATUM["NAD83_National_Spatial_Reference_System_2007",
SPHEROID["GRS 1980",6378137,298.257222101,
AUTHORITY["EPSG","7019"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6759"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.01745329251994328,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4759"]],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
PROJECTION["Lambert_Conformal_Conic_2SP"],
PARAMETER["standard_parallel_1",48.63333333333333],
PARAMETER["standard_parallel_2",47.03333333333333],
PARAMETER["latitude_of_origin",46.5],
PARAMETER["central_meridian",-93.1],
PARAMETER["false_easting",800000],
PARAMETER["false_northing",100000],
AUTHORITY["EPSG","3595"],
AXIS["X",EAST],
AXIS["Y",NORTH]]