Isoline Map

http://giscommons.org/?page_id=18
Isolines and isoline maps are most commonly found being used in meteorology when predicting and illustrating weather patterns across the world. The blue lines shown on the map are what is known as geopotential heights. Many times on an isoline map there will be wind barbs situated around the blue lines in order to indicate wind direction and flow in different locations.This isoline map above is a simple illustration of a isoline map of the United States. On the map you can see various geopotential heights represented by the blue lines in various portions of the country. These maps have one main focus and interest, and that is simply meterology and predicting weather patterns.