Interpretation of residual gravity anomaly caused by simple shaped bodies using very fast simulated annealing global optimization

摘要: Abstract A very fast simulated annealing (VFSA) global optimization is used to interpret residual gravity anomaly. Since, VFSA yields a large number of best-fitted models in vast model space; the nature uncertainty interpretation also examined simultaneously present study. The results reveal that various parameters show equivalent solutions when shape target body not known and factor ‘q’ optimized together with other parameters. study reveals amplitude coefficient k strongly dependent on factor. This shows there multi-model type between these two model parameters derived from analysis cross-plots. However, appraised values runs clearly indicate whether subsurface structure sphere, horizontal or vertical cylinder structure. Accordingly, exact (1.5 for 1.0 0.5 cylinder) fixed process repeated. After fixing factor, cross-plots well-defined uni-model characteristic. mean computed after gives utmost consistent results. Inversion noise-free noisy synthetic data as well field demonstrates efficacy approach.