Model anomalies for the earth from crustal data
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Abstract
Crustal data of surface elevations and depth of Moho (and densities) can be utilized to form model-earth anomalies. These model-anomalies can closely approximate the free-air anomaly field of the earth, and could thus be used to predict the latter.
A review of several such models is presented, with some elaboration on model developments, procedures, data analysis and accuracies.
One of the models approaches a prediction accuracy of ±10 mgal for5°×5° mean free-air anomalies, whose r.m.s. value was about30% higher.
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© Bureau Central de L’Association Internationale de Géodésie 1971