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