Ex:
Isarithmic map- A map which depicts continuous and smooth surfaces using isolines,
it can be constructed from true point data or constructed from perceptual point
data. Some examples of information that can be displayed by this map are toxic levels and demographic trends.
Ex:
Proportional Symbol map- A map which uses scaled symbols or icons in order to indicate the relative quantity of a particular data attribute. A larger symbol, for example, indicates a larger data value for a location on the map. An example of information that can be displayed by this map is population density.
Ex:
Dot Density map- A map which uses a fixed size dot symbol on a map in order to represent a fixed quantity of data. For example, a single dot symbol on a population map could represent one million people.
Ex:
Environmental Sensitivity Index map- A map which provides a concise summary of coastal resources that are at risk if an oil spill occurs nearby. Examples of at-risk resources include biological resources (such as birds and shellfish beds), sensitive shorelines (such as marshes and tidal flats), and human-use resources (such as public beaches and parks).
Ex:
