GEOG 1 Chapter Notes - Chapter 1-2: Subsolar Point, Mercator Projection, Map Projection
Document Summary
Ratio of things on map versus real world sizing. Example: ratio of 1:10,000 1 unit (inches, miles, etc. ) on map = 10,000 units in the real world. The bigger the # = the more zoomed out the map is. Measure from center point of earth determines latitudinal coordinate. Prime meridian at the middle: one side is 0 degrees and the opposite side is 180 degrees. No, maps = 2d, earth = 3d. Map projections are not perfect representations of areas on the planet. Maps can distort: distance, direction, shape, area. Cylindrical projection: take a piece of paper, wrap around globe to trace shapes of countries (with light projection) Paper touches earth on equator = no distortion here (but farther away from this point = more distortion) Conical projection: take globe, wrap paper around into shape of a cone. Paper touches mid-latitude = no distortion (farther from this point = more distortion)
