Thursday, April 22, 2010

Isopleths


Isopleths are yet another type of contour line which represents a variable in a large area. If the variable cannot be pinpointed, then isopleths are used. This is common with population density. This specific map shows an airborne toxic chemical. Since it is a large geographical area, an isopleth is used.
Direct URL: http://www.stonelions.com/Jacksonville.htm

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