Mapping Techniques Flashcards
What are annotated diagrams or overlays
A comparative method of displaying information
e.g changes in household income and house price
What is a choropleth map?
Areas are shaded or patterned in proportion to the measurement of the value shown on the map
e.g population density
what are cross sections
These show a feature such as a meander, sand dune or mountain in section, as if sliced in two
What is a dot map?
Uses dots to show the presence of a feature or value. They tend to rely on visual scatter to show spatial pattern.
Flow line map
Shows movement of objects or systems from one location to another
e.g migration numbers
what is a isoline map?
Shows spatial distributions (isobars)
What is a proportional symbols map?
Uses simple symbols (usually circle or square) and changes their proportions relative to the data value found at that location
Sphere of influence map
Shows the area of influence of a factor such as number of tourist visits of distance commuted relative to a reference point on the map
What are transects?
A straight line drawn across a photo or map against which values, distributions, patterns, observations and measurements can be shown.
