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Geophysical Research Letters
Article . 2007 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
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Lightning strikes to tall objects: Currents inferred from far electromagnetic fields versus directly measured currents

Authors: Yoshihiro Baba; Vladimir A. Rakov;

Lightning strikes to tall objects: Currents inferred from far electromagnetic fields versus directly measured currents

Abstract

We have derived far‐field‐to‐current conversion factors for lightning strikes to tall objects for (1) the initial peak current at the object top, (2) the largest peak current at the object top, and (3) the peak current at the object bottom. These far‐field‐to‐current conversion factors are needed for proper interpretation of peak currents reported by lightning detection networks and are each expressed here as the product of (a) the far‐field‐to‐current conversion factor for lightning strikes to flat ground based on the transmission line model and (b) an appropriate correction factor to account for the transient process in the strike object. The correction factors for the three considered cases are: (1) ftall_ini.top = v/(v + c), (2) ftall_top = [1 + ρbot(1 + ρtop)] v/(v + c), and (3) ftall_bot = (1 + ρbot) v/(v + c), where ρbot and ρtop are current reflection coefficients at the object bottom and at the object top for upward‐propagating waves, respectively.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
42
Top 10%
Top 10%
Top 10%
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