Improved adaptive thin-layer inversion for semi-airborne transient electromagnetic

Abstract To improve the resolution of electromagnetic inversion for thin layers, one-dimensional was studied. The smooth conductivity model produced by Occam's cannot accurately represent information subterranean resistive leading to erroneous findings. existing layers’ method sets constraint term at layers 0, resulting in abrupt changes resistivity values. Given above problems, we proposed an adaptive roughness matrix calculation thin, lowly resistive-layer resolution. difference between neighboring updated determines matrix, allowing realization layer. It achieves semi-airborne transient enhanced thin-layer and automatically manages term. synthetic demonstrates that improved does not need know advance. can produce appropriate results regardless presence lowly-resistive layers. Finally, drilling are consistent with inversed appearance field data. Other geophysical also benefit from this research's