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TYPES OF MAPS AND PROJECTIONS
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TYPES OF MAPS Projections Political Physical Thematic Chloropleth map, cartograms, flow line, isoline, dot, GIS, GPS Why are we changing maps?
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Chloropleth Maps
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Spending per capita on secondary education Cartograms – statistical data presented on a distribution map
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World population, 1500 World Population, 2002
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Wealth, 1960 Projected wealth, 2015 GDP Per Capita, 2000
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Infants who die between 1 – 4.
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Dot maps
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Dot map
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Each dot = 50,000 people Dot map
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Isoline maps
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Flow line maps
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World map of Erastosthones What is peculiar? Note grid lines. Oriented to the East. Why? The sun rises in the East.
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World Map of Eratosthenes 200 BC Note grid lines. First meridian at Alexandria Caspian Sea connected to a world ocean. Based on info gathered by Alexander the Great Circumference 25,000 miles
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Ptolmey’s World Map Circumference of the Earth, 14,000 miles
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GIS -- Global Information Systems - “layered” maps Using “remote sensing” satellite photos. demonstration
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What is wrong with this map?
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Mercator Projection
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Robinson Projection
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How to lie with maps. The size of maps can be deceptive.
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Name the major country that is not shown on this Arab map printed recently. Why? Arab countries do not recognize Israel’s right to exist.
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What is wrong with this map?
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Which map is correct?
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