Chapter 3 geodesy and the shape of the earth Flashcards Preview

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Flashcards in Chapter 3 geodesy and the shape of the earth Deck (3)
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1

Reference points

used to locate places on Earth. A datum is based on measures of angles and distances between reference points.

2

Challenges

Remember, the movement of mass will change the local gravitational attraction and will thus introduce surveying problems.

3

Mass and gravity

It quickly became apparent that mass and gravity introduced errors in surveying that had to be accounted for.