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How is NAD83 different than NAD27?
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NAD83 was developed from satellite measurements rather than manual calculations, where many errors exist.

NAD83 covers the entire Earth. NAD27 covers North America only.

NAD27 was created using satellite measurements rather than manual calculations, where many errors exist.

There is no difference between NAD27 and NAD83.

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Answer:

Explanation:

NAD 27 is based on the longitude and longitude, and the direction between points. NAD 83 is an earth centered datum which does not have beginning point or direction.

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