Mean Gravity Anomaly Prediction Techniques with a Comparative Analysis of the Accuracy and Economy of Selected Methods

摘要

Mean gravity anomalies are predicted to provide the average value of gravity within 1 deg x 1 deg surface areas or surface areas of other sizes. Prediction methods include conventional, statistical, deterministic, and geophysical. The statistical methods appear to give the best results when adequate computer resources are available. The deterministic methods give good results with minimum time and computer requirements. The geophysical methods give usable predictions when little or no measured data is available. The most accurate conventional method is graphical interpolation, but this method is too time-consuming to be recommended for general use.