Thursday, July 14, 2011

Standardized Choropleth Map

Standardized Choropleth Map URL
Standardized choropleth maps are a type of choropleth map that standardizes the information according to a certain area.  In the map above, the areas are standardized together so it is easy to see the different colors represented with the different areas.  Population per square kilometer is shown with the darker colors showing the more populated areas.  Since it is standardized, focusing in on the more populated areas is easier. 

Flow Map

Flow Map URL
Flow maps are a type of cartography map that combines flow charts with maps.  In this map, migration is followed between different continents and countries.  It shows a large migration coming from Europe to all other parts of the world.  Many went to either South America or North America.  Flow charts show the movement of objects to a certain place, and it this case they are measuring people migrating.  It does not show each country and has some distortion. 

Propaganda Map

Propaganda Map URL
Propaganda maps are used to try and persuade people's opinion of a certain reason.  Most places use maps like these in order to make their region better than another region.  In this map, Great Britian is showing how they own over one-fourth of the world's land, and Germany barely has any land.  This map was used during the war to show people why they should be on the British side and not the German side.  The British used propaganda to persuade people of why they are better. 

Monday, July 11, 2011

Proportional Circle Map

Proportional Circle Map URL
Proportional circle maps show data in relation to the size of the circles.  There are different sizes of circles which show the variation in what is being measured.  This map shows the number of people killed in Europe in 2000 caused by road accidents.  The smallest circle shows 100 deaths and the largest circle shows 8000 deaths.  Places like Norway and Sweeden had a very small amount of deaths in the year 2000.  On the other hand, France and Germany had a very large amount of deaths during that year. 

Dot Density Map

Dot Density Map
Dot density maps show the distribution of people for a certain variable.  In this map, each dot represents 200 people living in a nonmetro county.  The darker areas on the map show the higher amount of poor people living in the area.  The areas where there is mostly white colors shows where there are not very many poor people.  This distribution is taken from the year 2004 in the United States. 

Population Pyramid

Population Pyramid URL
Population pyramids show the sex and age of the population for a certain place.  The difference in distribution will be seen depending on what region the information is received from.  In this graph, the population in Sudan for the year 1995 is shown.  Females are located on the right side and males are on the left side.  The x-axis shows the population in thousands of both sexes, and the y-axis shows the age of both sexes.  From this map, it is easy to see that once a child is born, his or her change of surviving decreases every year.  There are many more children age 0-4 than there are people over 60.  This could mean there is a third variable creating these population changes. 

Bilateral Graph

Bilateral Graph URL
Bilateral graphs compare two related variables that overlap one another.  In this graph, the blue line depicts the annual population change in the world in 2009, and the red line shows the world's population in 2010.  On the left side of the graph, the population on 2010 is still increasing.  The two lines cross at the beginning and the values change.  The right side, on the other hand, shows the population in 2009 decreasing.  Where the two lines overlap is where the increase in variables changes.