Transient Surface Impedance Measurements using Spherics – Source Identification and Characterisation

Loading...
Thumbnail Image
File version
Author(s)
Thiel, DV
Mogensen, G
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Paul B. Smith
Date
2010
Size
610357 bytes
File type(s)
application/pdf
Location
Sydney, Australia
License
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.

Journal Title
Conference Title
Proceedings - 2010 12th International Conference on Electromagnetics in Advanced Applications, ICEAA'10
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© 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.
Item Access Status
Note
Access the data
Related item(s)
Subject
Electrical and electromagnetic methods in geophysics
Persistent link to this record
Citation