A Fast Interpretation Method for Inverse Modeling of Residual Gravity Anomalies Caused by Simple Geometry

Table 4

Numerical results of the present method applied to the horizontal cylinder synthetic example (𝑞=1,𝑧=5 km, and 𝐴=750 mGal * km; profile length = 40 km; sampling interval = 1 km) without and with 5% random noise.

	Using synthetic data			Using data with 5% random errors
𝑀 (km)	Computed depth (km)	Computed shape factor	Computed amplitude factor (mGal)	Computed depth (km)	Computed shape factor	Computed amplitude factor (mGal)
3.00	7.29	1.54	2252.78	5.38	0.76	393.01
4.00	5.87	1.01	1812.75	6.91	1.22	2686.23
5.00	5.30	0.82	590.16	5.93	0.91	706.47
6.00	4.94	0.72	435.48	5.73	0.85	561.92
7.00	4.67	0.64	359.25	5.46	0.78	423.99
8.00	4.43	0.58	211.87	5.02	0.67	280.06
9.00	4.20	0.52	179.18	4.50	0.54	187.71
10.00	4.00	0.47	156.33	4.18	0.47	152.74
Average (km)	5.09	0.79	749.72	5.39	0.78	674.02