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OPTIMIZED SOLUTION IN ENTERING ZERO-POINT DRIFT CORRECTIONS IN RESULTS FROM RELATIVE GRAVITY MEASUREMENTS
Abstract
The study of a gravimetric network is closely connected with determining the value of the drift on the gravimeter scale (zero-point drift; drift). The realization of a great number of over-measured quantities makes preliminary processing of gravity measurements a hard, slow, and delicate process. The main purpose of this research is to investigate a method that would simplify the overall technology of gravimetric measurement and post-processing of the results obtained. A modification of the commonly adopted adjustment approach is offered, where the velocity of the zero-point drift is introduced as an additional unknown quantity in the parametric adjustment. The options for optimization of the complete program of measuring and processing a gravimetric network are described. The advantages of the applied method are explained. It is shown that this is a more reliable and rational way to process gravimetric measurements. The analysis is supported by an example from a specific and real object. Conclusions and recommendations follow.
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