Time-Dependent Surface Impedance from Sferics Author O'Keefe, Y, Thiel, DV, O'Keefe, SG Published 2005 Journal Title IEEE Geoscience and Remote Sensing Letters DOI https://doi.org/10.1109/LGRS.2004.843206 Copyright Statement © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/ republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Downloaded from http://hdl.handle.net/10072/4307 Link to published version http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8859 Griffith Research Online https://research-repository.griffith.edu.au