Unit 1 Flashcards
GIS
A tool that stores, organizes, and displays geographic data( layers)
Dispersal
When objects are spread out
clustering
when objects are grouped or clumped together around a central point
Thematic map
A map that has a theme or specific purpose and focus on a relationship
reference map
illustrates unique identifiers of geographic data, places, and regions( political and physical)
peters projection
size good , shape bad
robinson projection
distorted towards the poles
mercator projection
shapes good, size bad ( used for navigation)
absolute direction
cardinal directions
relative direction
based on people perspectives (up down left right)
absolute distance
distance measured in a standard unit
relative distance
measure in money or time
projection
a way to put the earth on a 2d surface
GPS
Global positioning system ( uses satilites to send data)
space
refers to the area between two or more objects on the earths surface