![]() What kind of coordinate is -71.53, 41.47? How can you tell?Įllipsoids measure the shape of the earth as an ellipse What is the coordinate of a location 1 mile west of the state plane What is the coordinate of a location 5 km north of this location? State Plane System and the ultimate technical descriptionĪnd State Plane Systems do not work out of their zonesĭifferent Projections and Coordinate Systems Do Not Overlap Properlyģ50000, 4510000? How can you tell? What do the numbers reflect? One minute of latitude is approx one mile. One degree longitude at the equator = 111km (69 miles). Degrees, Minutes, Seconds ( decimal degrees, decimal To represent shape, direction, distance, and area of a 3-D surface in 2-D. Scale ( makes a difference in resolution) You will immediately recognize what type a geographic coordinate You will know how scale and map resolution are related You will know where to find critical descriptive info about spatial data and Know the different ways maps and spatial data are presented Projections, Datums and Coordinate Systems ![]()
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