Maps - Introduction of Geography Map a 2-D representation...

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Introduction of Geography Jiayu Wang Department of Geography, University of South Carolina Map: a 2-D representation of the world or part of it, in two dimensions Globe: a 3-D representation of the entire earth surface. Location Referencing Systems Coordinates: Latitude and Longitude Universal Transverse Mercator (UTM) Latitude Figure 1.10 Latitude the angular distance north or south of the equator, measured in degrees ranging from 0 ° (the equator) to 90 ° (the North and South Poles) Longitude Figure 1.12 Longitude the angular distance east or west of the prime meridian measured in degrees ranging from 0 ° (the prime meridian) to 180 ° (the International Date Line) X Y Equator: X Prime Meridian: Y (+x, +y) (East, North) (+x, -y) (East, South) (-x, -y) (West, North) (-x, +y) (West, North) Geographic coordinates may be written in one of the following ways: Degrees, Minutes, and Seconds (DMS) Example Little Rock, Arkansas X = Longitude: 92 degrees W 45’ 33” Y = Latitude: 34 degrees N 32’ 52” Decimal Degrees: Example X = -92.759 Y = 34.547
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