Tuesday, August 30, 2011

Different Topographical Maps

                                                    Isarithmic Map
An isarithmic map is a map that depicts smooth continuous phenomena such as precipitation.




                                                    Choropleth Map
A choropleth map shows statistical data aggregated over predefined regions by coloring or shading.




                                                    Dot Density Map
A dot density map is a map used to locate each occurrence of a phenomenon. A dot may indicate any number of entities.






                                              Proportional Symbol Map
A proportional symbol map is a map that uses symbols of different sizes to represent data associated with different areas or locations within the map.


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