APHG Unit One

Political Maps

shows political units

Physical map

shows natural features

Road map

shows highways and rail lines

Thematic Maps

communicate information about a place - spatial aspects

Choropleth

uses various colors, shades, patterns to show the location and distribution of spatial data

Dot density

each dot (or other symbol) represents a specified quantity of a spatial characteristic

Graduated/Proportional Symbol

use symbols of various sizes to indicate different amount of a variable

Isoline map

use lines that connect points of equal value to depict variations in the data across space

Cartogram

the size of countries are shown according to a specific varaible

Absolute location

exact, precise. Uses latitude and longittude

Relative location

relationship to another place

Absolute distance

miles, km, feet

Relative distance

measure in time, technology has reduced it

Absolute direction

cardinal directions

relative direction

“turn left at the next light”

Density

the number of something in a designated area

dispersed

clustered

distribution

the way a phenomenon is spread out over an area. Typically described as clustered or dispersed

patterns

linear, geometric, random

linear