7              How is spatial data captured?

7.1                  There are a variety of ways to capture spatial data, each having its own levels of precision and accuracy, as well as its own sources of error and uncertainty. Several of the more popular methods will be briefly discussed below.

 

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Field Survey

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Global Positioning System

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Aerial Photography

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Photogrammetry

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Orthophotos

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Orthophoto Mosaics

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Remotely Sensed Satellite Imagery

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Digitising

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Scanning

 

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Positional Uncertainty Table of Contents

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