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22 Cards in this Set
- Front
- Back
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Aggregation
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The level of detail for dividing a thematic map into geographic units, ranging from a coarse division (e.g., countries) to a fine division (e.g., zip codes)
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Choropleth Map
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A thematic map in which ranked classes of some variable are depicted with shading patterns or colors for predefined zones
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Dot Map
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A thematic map in which a dot represents some frequency of the mapped variable
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Geographic Information System (GIS)
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A computer hardware and software system that handles geographically referenced data. A GIS uses and produces maps and has the ability to perform many types of spatial analysis
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Human/Environmental Interaction
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The ways in which human society and the natural environment affect each other (the fifth theme of geography)
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Human Geography
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The study of the distribution of humans and their activities on the surface of the earth and of the processes that generate these distributions
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Isoline Map
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A thematic map with lines that connect points of equal value
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Location
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The absolute position of something on the surface of the earth and its relative proximity to other related things (the first theme of geography)
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Legend
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Explanatory list of symbols in a map. Usually appears in a box in the lower corner
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Map
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A two-dimensional graphical representation of the surface of the earth (or of events that occur on the earth)
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Map Projection
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A systematic method of transferring a spherical surface to a flat map
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Map Scale
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The ratio of map distance to earth distance, measured in the same units
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Movement
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The flow of people, goods, money, ideas, or materials between locations near or far (the fourth theme of geography)
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Place
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The local human and physical characteristics that uniquely define a place and give it meaning to its inhabitants (the second theme of geography)
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Primary Data
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Information collected directly by the researchers or their equipment without any intermediary. This can include surveys, interviews, observations, or measurements obtained in the field
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Proportional Symbol Map
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A thematic map in which the size of a symbol varies in proportion to the frequency or intensity of the mapped variable
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Reference Map
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A general-purpose map that shows recognizable landmarks, roads, and political units
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Region
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An area characterized by similarity or by cohesiveness that sets it apart from other areas (the third theme of geography)
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Secondary Data
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Information obtained indirectly from another source that was previously collected, processed, and made available to a larger audience
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Simplification
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Elimination of unimportant detail on maps and retention and possibly exaggeration and distortion of important information, depending on the purpose of the map
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Spatial Data
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Information that has a geographical or locational component. A map that demonstrates a particular feature or a single variable
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Thematic Map
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Four types of thematic maps are (1) dot maps, (2) choropleth maps, (3) proportional symbol maps, and (4) isoline maps
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