Imaging LNAPLs contaminated soils by polarimetrie migration

Abstract

Polarization is a property of electromagnetic waves, and polarimetric GPR can obtain the co-polarization and cross-polarization information coinstantaneously. In this paper, we use a polarimetric migration imaging method to research LNAPLs contamination in soil. The polarimetric migration algorithm is a merging of the Pauli polarimetric decomposition technique with the Kirchhoff migration equation, and then extraction of three migrated coefficients. Then we can get a subsurface reconstructed image by fusing the three migrated coefficients. We use diesel to simulate LNAPLs in a contaminated soils environment. We obtain the depth of the LNAPLs contamination and locate the LNAPLs' relative position in the sandbox by polarimetric migration.