Table 10 Mean model with the level of uncertainty in the posterior utilizing individual inversion of MT data from the findings of the PSO, GWO, vPSOGWO, compared with results inverted by Harinarayana et al.45 over Western Puga valley geothermal field, Ladakh, India.
From: Nature-inspired stochastic hybrid technique for joint and individual inversion of DC and MT data
Layer parameters | Search range | Marquardt inversion44 | Inverted value (PDF > 68.27% CI) | |||
|---|---|---|---|---|---|---|
Lower | Upper | PSO | GWO | vPSOGWO | ||
\({\rho }_{1}\) (Ωm) | 100 | 1000 | 588.60 | 547.66 ± 44.00 | 540.64 ± 40.42 | 523.11 ± 21.90 |
\({\rho }_{2}\) (Ωm) | 100 | 1000 | 743.03 | 734.19 ± 62.65 | 741.30 ± 24.72 | 731.27 ± 12.48 |
\({\rho }_{3}\) (Ωm) | 1 | 50 | 24.48 | 28.28 ± 4.74 | 27.85 ± 1.47 | 28.05 ± 0.76 |
\({\rho }_{4}\) (Ωm) | 10 | 1000 | 62.93 | 56.86 ± 269.00 | 58.16 ± 36.73 | 66.68 ± 26.22 |
\({\rho }_{5}\) (Ωm) | 0.01 | 10 | NA | 0.03 ± 3.08 | 0.60 ± 2.75 | 5.69 ± 1.33 |
\({h}_{1}\) (km) | 0.1 | 1 | 0.78 | 0.48 ± 0.21 | 0.46 ± 0.15 | 0.42 ± 0.73 |
\({h}_{2}\) (km) | 3 | 6 | 4.35 | 4.14 ± 0.45 | 4.17 ± 0.19 | 4.32 ± 0.11 |
\({h}_{3}\) (km) | 1 | 10 | 3.31 | 5.66 ± 1.73 | 5.50 ± 0.81 | 6.16 ± 0.43 |
\({h}_{4}\) (km) | 10 | 100 | Infinity | 69.58 ± 13.87 | 70.05 ± 3.50 | 65.68 ± 1.96 |
Fitness (RMS) | 0.0229 | 0.02245 | 0.02242 | |||
