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Geography Paper 2 > GIS > Flashcards

Flashcards in GIS Deck (7)
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1

GIS

Geographical Information System
- computer-based geographical tool for collecting, storing, analyzing, managing, modeling and presenting geographical data for a wide range of uses

2

Passive remote sensing

Collecting data that constantly radiates from the earth

3

Active remote sensing

Collecting data only when the satellite sends radiation to the target area

4

Data overlay

Enables us to analyze, compare and establish relationships between different sets of data

5

Buffering

The process of drawing a zone of a specific distance around a particular feature

6

Sphere of influence

A buffer zone which shows the people and places most affected by a feature

7

Zone of protection

A buffer zone which shows an area where people and places are less impacted by a feature because they are within a certain distance of another feature
( e.g. liquor stores and schools)