Automated density profiling over a 35 metre ridge

Abstract

Automated density profiling can be used to analyse real data errors, and to anticipate the effect of errors. The best possible density-profiling precision can also be predicted for any given topographic cross-section. Although the terrain correction is by-passed in the automatic process, it is useful to display this quantity, as its size is a function of steepness and height, and therefore an indicator of the likely effectiveness of density profiling. Density profiling over ridges less than 50 m high is feasible provided there are no perturbations in the gravity field, and the cross-sectional shape is known accurately. A comprehensive density-profiling analysis is demonstrated for a 35 metre ridge.