Next Article in Journal
Evaluation of Temperature and Humidity Profiles of Unified Model and ECMWF Analyses Using GRUAN Radiosonde Observations
Next Article in Special Issue
Horizontal Electric Field in the Vicinity of Structures Hit by Lightning
Previous Article in Journal
Modeling CH4 Emissions from Natural Wetlands on the Tibetan Plateau over the Past 60 Years: Influence of Climate Change and Wetland Loss
Previous Article in Special Issue
Characteristics of Preliminary Breakdown Pulses in Positive Ground Flashes during Summer Thunderstorms in Sweden
Article Menu

Export Article

Open AccessArticle
Atmosphere 2016, 7(7), 92; doi:10.3390/atmos7070092

An FDTD Study of Errors in Magnetic Direction Finding of Lightning Due to the Presence of Conducting Structure Near the Field Measuring Station

1
Department of Electrical Engineering, Doshisha University, Kyoto 610-0321, Japan
2
TEPCO Research Institute, Tokyo Electric Power Company, Yokohama 230-8510, Japan
3
Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611-6130, USA
4
Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Vernon Cooray and Farhad Rachidi
Received: 3 June 2016 / Revised: 9 July 2016 / Accepted: 12 July 2016 / Published: 15 July 2016
View Full-Text   |   Download PDF [5132 KB, uploaded 15 July 2016]   |  

Abstract

Lightning electromagnetic fields in the presence of conducting (grounded) structure having a height of 60 m and a square cross-section of 40 m × 40 m within about 100 m of the observation point are analyzed using the 3D finite-difference time-domain (FDTD) method. Influence of the conducting structure on the two orthogonal components of magnetic field is analyzed, and resultant errors in the estimated lightning azimuth are evaluated. Influences of ground conductivity and lightning current waveshape parameters are also examined. When the azimuth vector passes through the center of conducting structure diagonally (e.g., azimuth angle is 45°) or parallel to its walls (e.g., azimuth angle is 0°), the presence of conducting structure equally influences Hx and Hy, so that Hx/Hy is the same as in the absence of structure. Therefore, no azimuth error occurs in those configurations. When the conducting structure is not located on the azimuth vector, the structure influences Hx and Hy differently, with the resultant direction finding error being greater when the structure is located closer to the observation point. View Full-Text
Keywords: lightning locating system; magnetic direction finding; lightning electromagnetic fields; finite-difference time-domain (FDTD) method lightning locating system; magnetic direction finding; lightning electromagnetic fields; finite-difference time-domain (FDTD) method
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Suzuki, Y.; Araki, S.; Baba, Y.; Tsuboi, T.; Okabe, S.; Rakov, V.A. An FDTD Study of Errors in Magnetic Direction Finding of Lightning Due to the Presence of Conducting Structure Near the Field Measuring Station. Atmosphere 2016, 7, 92.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atmosphere EISSN 2073-4433 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top