Thematic map shows information of a particular theme of a specific geographic area. It portrays characteristics of a city, state, nation or continent. Some themes could be social, cultural, economic, agricultural or physical aspects of a region. This is a thematic map of the elderly population in 2000. The legend demonstrates the key color for finding the average elderly population in specific cities. The purposes of a thematic map is to provide information about a particular location and spatial patterns. There are several types and methods of making a thematic maps that will be presented later on in this blog such as: dot distribution, choropleth, proportional circle, isoline and flow maps.
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