AUTHOR=Chen Hao , Zhang Lili , Ren ZhengYong , Cao Hui , Wang Gang TITLE=An automatic preselection strategy for magnetotelluric single-site data processing based on linearity and polarization direction JOURNAL=Frontiers in Earth Science VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2023.1230071 DOI=10.3389/feart.2023.1230071 ISSN=2296-6463 ABSTRACT=
The magnetotelluric response function can be severely disturbed by cultural electromagnetic noise. The preselection strategy is one of the effective ways to remove the influence of noise when calculating the response function. This study proposed three new parameters (the amplitude ratio predicted amplitude ratio and linear coherence (PLcoh) between the predicted and observed electric fields and the dispersion degree of the magnetic polarization direction (