Short note: A proposed polarity check for multi-component seismic data

Faranak Mahmoudian, Gary F. Margrave

The issue of polarity is deceptively simple, and prior to joint AVO inversion (amplitude variation with offset) the correct polarity of the PP and PS data must be considered. An AVO inversion of compressional data (PP inversion) can provide a good P-impedance estimate, and an AVO inversion of converted shear data (PS inversion) can provide a good S-impedance estimate. This fact is used to propose a polarity check for compressional and converted shear data.