Drawing On Web Resources Summarize Key Aspects Of The Entire Utm Projection System

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1. Drawing on web resources (remember to reference/cite them), summarize key aspects of the entire UTM projection system, including its use in polar latitudes. Use figures and references. Make sure to indicate what zone most of Minnesota is located in and explain that zone’s parameters. [300]

The Universal Transverse Mercator (UTM) coordinate system is a cylindrical, conformal projection (Snyder 1987, Page 48). Foremost, conformal projections preserve orthometric properties, making UTM accurate for navigation. UTM projects a line of tangency secant to the transverse aspect of the central meridian, making the central meridian a line of true scale. The (latitude, longitude) UTM coordinates project a flat, two dimensional horizontal Cartesian …show more content…

The limitation of UTM is inaccurate polar coordinate projections, therefore the Universal Polar Stereographic (UPS) coordinate system is substituted for regional …show more content…

Google Earth uses a reference surface to project a 3D representation of Earth. A reference surface uses known coordinate locations to interpolate a shape, in our case a reference ellipsoid. A datum is a collection of known accurate coordinates, and is used with a reference ellipsoid to approximate geographic locations on Earth. Commonly, a projection is used in GIS to interpolate a three dimensional reference ellipsoid and datum onto a two dimensional Cartesian coordinate system map. However, in order to overlay GIS data onto Google Earth, the user must re-project from a coordinate reference system to a geographic reference system. For example, the North American Datum (NAD) needs to be re-projected into World Geodetic System (WGS) for accurate latitude and longitude coordinates, as Google Earth is an ellipsoidal reference surface, while NAD is a

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