Reading & interpreting maps notes

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Reading & interpreting maps notes

  1. 1. Reading & Interpreting Maps 9/28-29/11
  2. 2. Common Types of Maps <ul><li>General Reference – ‘compromise’ maps that show world layout </li></ul><ul><li>Projections – transfer the round globe to a flat paper to show true area, distance, shape, direction, etc. </li></ul><ul><li>Charting maps – used for navigation </li></ul><ul><li>Topical Maps – focus on a single topic </li></ul><ul><li>Cartograms – show statistics </li></ul><ul><li>Topographic Maps! – Show elevation and physical features of land (natural and manmade) </li></ul>
  3. 3. Hemispheres - using the equator and prime meridian, the world is divided into 4 hemispheres – North/South, East/West
  4. 4. Compass <ul><li>A compass is a tool that helps the user know what direction one is headed. </li></ul><ul><li>On a map, a compass or a compass rose helps the user locate these directions. </li></ul><ul><li>There are four cardinal directions on a compass - North, South, East & West. In between are the directions northeast, northwest, southeast, southwest. </li></ul>
  5. 5. Compass Rose <ul><li>The needle on a compass is magnetized to point to the earth's north magnetic pole. </li></ul><ul><li>The Magnetic North Pole strays slightly from True North, the point where Earth’s center axis is. </li></ul><ul><li>The difference between these 2 points is called Magnetic Declination </li></ul>Source: http://aerocompass.larc.nasa.gov
  6. 6. Scale <ul><li>Maps are made to scale; that is, there is a direct connection between a unit of measurement on the map and the actual distance. </li></ul><ul><li>For example, each inch on the map represents one mile on Earth. So, a map of a town would show a mile-long strip of fast food joints and auto dealers in one inch. </li></ul>
  7. 7. Scale
  8. 8. Time Zones <ul><li>The Earth is divided into 24 time zones, corresponding to 24 hours in a day. </li></ul><ul><li>As the earth rotates, the sun shines in different areas, moving from east to west during the course of a day. </li></ul><ul><li>Places that have the same longitude will be in the same time zone. </li></ul>
  9. 10. Map Legends <ul><li>The legend is the key to unlocking the secrets of a map. Objects or colors in the legend represent something on the map. </li></ul>Religions Legend
  10. 11. Can you understand this legend?
  11. 12. Age Expectancy Legend
  12. 13. Topographic Maps <ul><li>Use Contour Lines to show Physical Relief and elevations. </li></ul>

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