Topic 1.1 Introduction to Maps Flashcards
Mercator Map
Pro: True to direction
Con: Size of landmass gets distorted further from the equator
Peters Map
Pro: Landmass true to size
Con: Continent shapes are distorted
Goode Homolosine
Pro: Continent shapes are true
Con: Continent shapes are distorted
Robinson Map
Pro: Most distortions are minimal
Con: Landmass distortions remain
Parts of a Map
Title–self explanatory
Orientation–compass rose; directions
Date–maps change!
Author–self explanatory
Legend/key–explains symbols, colors
Scale–measures distance
Index–lists items on map
Grid–helpful for quick location
Reference Maps
emphasizes specific locations
Examples: contries, continents, physical and cultural features
Thematic Maps
emphasize specific topics with a focus on data
Example: religious affliation, level of income, etc.
Chloropleth Map
(Thematic Maps)
uses different colors to represent data
Cartogram Maps
(Thematic Maps)
distorts geographic shape of an area to show size of a variable
Proportional/Graduated circle
(Thematic Maps)
uses circles or dots of different sizes to show numerical value
(DIFFERENTLY SIZED CIRCLES)
Dot density/distribution
(Thematic Maps)
uses dots to represent objects
(SAME SIZED CIRCLES)
Flow
(Thematic Maps)
shows movement using varying lines of width and arrows
Isoline
(Thematic Maps)
shows boundaries of a particular value
Absolute Location
exact location
(street, state, coordinates, adress)
Absolute Distance
exact measurement
(miles, feet, etc.)
Absolute Direction
description of a location using cardinal directions
Relative Direction
uses prepositions to convey direction
(close to, above, under, etc.)
Relative Distance
measures level of social, cultural, or economic similarities between places
Clustered Patterns
shows concentration within an area
Dispered Patterns
people/things are scattered, spread out over an area
