Transient Surface Impedance Measurements using Spherics – Source Identification and Characterisation

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Title Transient Surface Impedance Measurements using Spherics – Source Identification and Characterisation
Author Thiel, David Victor; Mogensen, Gavin
Publication Title Proceedings of International Conference on Electromagnetics in Advanced Applications (ICEAA)
Editor Paul B. Smith
Year Published 2010
Place of publication United States
Publisher IEEE
Abstract Transient recordings of the electric and magnetic fields over the audio-band display significant transient pulses (spherics) which can be used for surface impedance measurements providing the lighting strike is distant and predominantly vertical. Horizontal lighting strikes, other atmospheric noise and instrument noise creates incorrect surface impedance data. Automated spheric selection can be made by calculating the sliding window correlation coefficient, and observing a period of elevated values followed by a rapid transition to a negative value. Data selected in this manner yield coherent surface impedance values.
Peer Reviewed Yes
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Copyright Statement Copyright 2010 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.
ISBN 9781424473687
Conference name International Conference on electromagnetics in advanced applications
Location Sydney, Australia
Date From 2010-09-20
Date To 2010-09-24
Date Accessioned 2010-12-15
Date Available 2011-03-16T07:57:00Z
Language en_AU
Research Centre Centre for Wireless Monitoring and Applications
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Electrical and Electromagnetic Methods in Geophysics
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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