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A thematic map is a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area. This usually involves the use of map symbols to visualize selected properties of geographic features that are not naturally visible, such as temperature, language, or population. [ 1 ]
A Choropleth map visualizes statistical data that has been aggregated into a priori districts (such as countries or counties) using area symbols based on the visual variables of color and/or pattern. Choropleth maps are by far the most popular kind of thematic maps due to the widespread availability of aggregated statistical data (such as ...
A choropleth map (from Ancient Greek χῶρος (khôros) 'area, region' and πλῆθος (plêthos) 'multitude') is a type of statistical thematic map that uses pseudocolor, meaning color corresponding with an aggregate summary of a geographic characteristic within spatial enumeration units, such as population density or per-capita income.
A cartogram (also called a value-area map or an anamorphic map, the latter common among German-speakers) is a thematic map of a set of features (countries, provinces, etc.), in which their geographic size is altered to be directly proportional to a selected variable, such as travel time, population, or gross national income. Geographic space ...
Simple chorochromatic maps show single regions or categories with spatially intermittent frequencies (i.e., there are gaps between the regions). An example of this would be showing the distribution of forests or mineral deposits. The chosen variable is represented by a single color symbol or pattern without subdividing it further into subgroups.
A dot distribution map (or a dot density map or simply a dot map) is a type of thematic map that uses a point symbol to visualize the geographic distribution of a large number of related phenomena. Dot maps are a type of unit visualizations that rely on a visual scatter to show spatial patterns, especially variances in density.
Dent's specialization as a geographer and cartographer was thematic mapping.He defined thematic maps as those that show “the spatial distribution of some geographical phenomenon,” [5] in contrast with general-purpose or reference maps that “display objects (both natural and man-made) from the geographical environment.” [5] He further explained that because thematic maps deal with a ...
Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Thematic maps" The following 14 pages are in this category, out of 14 total.