With an ellipsoid height for a point derived by GPS of 567.4 ft and a geoid separation of 123.8 ft, what is the orthometric elevation for the point?

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Study for the Land Surveyor in Training Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

With an ellipsoid height for a point derived by GPS of 567.4 ft and a geoid separation of 123.8 ft, what is the orthometric elevation for the point?

Explanation:
Geoid height is used to convert GPS ellipsoidal height to orthometric height. The orthometric height H equals the ellipsoidal height h minus the geoid height N: H = h − N. Here, h = 567.4 ft and N = 123.8 ft, so H = 567.4 − 123.8 = 443.6 ft. Therefore, the orthometric elevation is 443.6 ft.

Geoid height is used to convert GPS ellipsoidal height to orthometric height. The orthometric height H equals the ellipsoidal height h minus the geoid height N: H = h − N. Here, h = 567.4 ft and N = 123.8 ft, so H = 567.4 − 123.8 = 443.6 ft. Therefore, the orthometric elevation is 443.6 ft.

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