Polarisation independence of amplitude scintillation

Otung and Evans presented some results of slant path scintillation measurements from Sparsholt (UK) which indicate that tropospheric scintillation is dependent on polarisation angle. However, results from Kirkkonummi (Finland), Lessive (Belgium) and Darmstadt (Germany), which are presented, do not show any significant polarisation dependence. The theoretical basis given by Otung and Evans is studied further, showing that tropospheric scintilation is not expected to be significantly influenced by polarisation angle.