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Hendra Grandis
Program Studi Geofisika, Departemen Geofisika dan Meteorologi - ITB Jl. Ganesa 10 Bandung – 40132
Astronomy Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

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Inversi Data Magnetotellurik 1-D Menggunakan Metoda Simulated Annealing Akhmad Syaripudin; Hendra Grandis
Indonesian Journal of Physics Vol 12 No 2 (2001): Vol. 12 No. 2, April 2001
Publisher : Institut Teknologi Bandung

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Abstract

This paper describes a non-linear inversion method employing simulated annealing technique that imitates a thermodynamic process in which a substance is cooled down slowly to achieve an equilibrium state with a minimum energy. The method was applied to invert 1-D magnetotelluric data in which the model parameter is resistivity varied with depth. Model perturbations carried out in search for a minimum data misfit. Inversions of synthetic and field data showed satisfactory results. By considering equivalence problems, synthetic models were resolved relatively well with data misfit around 10%. Inversions of field data showed subsurface resistivity distribution that agrees well with the geological condition of the surveyed area.
Co-Authors Akhmad Syaripudin