Comparison of different stabilizing functional in 3D regularized inversion of direct current resistivity data

GÜNDOĞDU N. Y., CANDANSAYAR M. E.

20th European Meeting of Environmental and Engineering Geophysics of EAGE's Near Surface Geoscience Division, Athens, Yunanistan, 14 - 18 Eylül 2014 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.3997/2214-4609.20141982
  • Basıldığı Şehir: Athens
  • Basıldığı Ülke: Yunanistan
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, a new three dimensional (3D) direct current resistivity (DCR) data inversion algorithm is developed. In the developed algorithm, Tikhonov parametric functional is used for regularized inversion. Mostly, smoothing stabilizer is preferred in 3D inversion algorithms of DCR data. In the developed algorithm, different stabilizers are used and their effects on the inverse solution are investigated. It is showed that, inversion with "minimum support" and "first-order minimum entropy" stabilizers gives results with sharper boundaries than inversion with smoothing stabilizer. The algorithm is tested with synthetic data and also field data which is collected in archeological area.