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TYPES OF MAPS AND PROJECTIONS
TYPES OF MAPS
Projections
Political
Physical
Thematic
Chloropleth map, cartograms, flow line, isoline, dot, GIS, GPS
Why are we changing maps?
Chloropleth Maps
Spending per capita on secondary education
Cartograms – statistical data presented on a distribution map
World population, 1500
World Population, 2002
Wealth, 1960
Projected wealth, 2015
GDP Per Capita, 2000
Infants who die between 1 – 4.
Dot maps
Dot map
Each dot = 50,000 peopleDot map
Isoline maps
Flow line maps
World map of Erastosthones
What is peculiar?
Note grid lines.
Oriented to the East. Why?
The sun rises in the East.
World Map of Eratosthenes 200 BCNote 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
Ptolmey’s World Map
Circumference of the Earth, 14,000 miles
GIS -- Global Information Systems - “layered” maps
Using “remote sensing” satellite photos.
demonstration
What is wrong with this map?
Mercator Projection
Robinson Projection
How to lie with maps.
The size of maps can be deceptive.
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.
What is wrong with this map?
Which map is correct?
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