Overview

Bouguer anomaly


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The gravitational attraction remaining after correcting the measured vertical component of gravitational acceleration at a point for: (a) the theoretical gravity at that point, usually using the International Gravity Reference Field; (b) the free-air correction; (c) the Bouguer correction; and (d) the topographic elevation correction, usually correcting to sea level. This anomaly is the fundamental gravity anomaly, reflecting all variations in density away from that expected for a homogeneous Earth.

(a) the theoretical gravity at that point, usually using the International Gravity Reference Field; (b) the free-air correction; (c) the Bouguer correction; and (d) the topographic elevation correction, usually correcting to sea level.

Subjects: Earth Sciences and Geography.


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