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Meteorological Aspects of Self‐Initiated Upward Lightning at the Säntis Tower (Switzerland) [PDF]

Journal of Geophysical Research D: Atmospheres, 2019
AbstractInterest in exploring the meteorological conditions favoring upward lightning from tall man‐made structures has grown in recent years, largely due to the worldwide expansion of wind energy. To this end, instrumented towers existing around the world are the most suitable places to study upward lightning.
Nicolau Pineda, Jordi Figueras I Ventura, Amirhossein Mostajabi   +2 more
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On the proportion of upward flashes to lightning research towers

Atmospheric Research, 2011
We compare in this paper direct measurements obtained on the towers on San Salvatore Mountain (Switzerland) and on the Gaisberg Mountain (Austria). They are situated in similar topographical environments but in different lightning activity zones. Direct measurements of lightning currents on these towers have revealed a major difference in terms of the ...
Alexander Smorgonskiy, Farhad Rachidi, Marcos Rubinstein, Gerhard Diendorfer, Wolfgang Schulz   +4 more
openaire   +1 more source

The stepped nature of lightning, and the upward connecting streamer

Journal of Physics D: Applied Physics, 2002
We present numerical results that provide an explanation of the finite steps of 20–50 m taken by lightning as it descends from the clouds, or as lightning rises from tall buildings towards the clouds. We also explain why positive streamers rise steadily from the ground to meet the descending lightning bolt at a distance of about 40 m above the ground ...
Richard Morrow, Trevor R Blackburn
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First Documented Downward Positive Cloud‐to‐Ground Lightning Initiated by an Upward Negative Lightning

Journal of Geophysical Research: Atmospheres, 2021
AbstractAn interesting downward positive cloud‐to‐ground lightning (DPCG) initiated by an upward negative cloud‐to‐ground lightning (UNCG) was recorded by the instruments installed at the Tall‐Object Lightning Observatory in Guangzhou. The characteristics of the discharges before and after the DPCG return stroke were investigated in detail using both ...
Ruijiao Jiang, Weitao Lyu, Bin Wu, Qi Qi, Lyuwen Chen, Ying Ma, Fanchao Lyu, Yanan Zhu, Vladimir A. Rakov   +8 more
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Measurement of the Speed of Upward Lightning Discharges

2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials, 2006
This paper presents the results from the upward lightning discharge observations. The observations were carried out using the broadband interferometry system. A total of 24 upward lightning whose leaders were negatively charged were recorded during one-month observations in wintertime on the coastal area of Japan Sea.
openaire   +1 more source

The Formation of Lightning Upward Discharges

1991
The approach of a negative downward leader induces at the ground level a relatively slow rise of the electric field which may initiate the formation of an upward discharge originated from a protrusion on the earth surface.
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Lightning-initiated Upward Lightning Flashes Observed at Tokyo Skytree in April 2017

2018 34th International Conference on Lightning Protection (ICLP), 2018
Lightning observation has been carried out at Tokyo Skytree, which is a 634-m high freestanding broadcasting tower located on flat terrain at 1 m ASL. 25 downward and 40 upward flashes were observed at the tower from 2012 to 2017. This paper focuses on upward negative flashes initiated from the top of the tower observed in April 2017.
Toru Miki, Mikihisa Saito, Takatoshi Shindo, Masaru Ishii, Namiko Sakurai   +4 more
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Occurrence of Upward Streamers in Lightning Discharges

Nature, 1947
For some time past it has been suspected that, at some instant during the leader process of the normal lightning discharge, streamers may be produced which rise from earth to meet the down-coming leader stroke. However, information on the lengths of such streamers has so far been lacking.
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Upward bipolar lightning flashes observed at the Gaisberg Tower

2010 30th International Conference on Lightning Protection (ICLP), 2010
We analyze current records for 21 natural upward-initiated bipolar lightning flashes observed to the Gaisberg Tower (GBT) in Austria from 2000 to 2009. Thirteen (62%) of 21 bipolar flashes occurred in non-convective season (September- March) and twelve (57%) of them occurred in seasonal transmission periods of March, August, and November in Austria ...
Helin Zhou, Gerhard Diendorfer, Rajeev Thottappillil, Hannes Pichler, Martin Mair   +4 more
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On the Interaction of Lightning Upward Connecting Positive Leaders With Humans

IEEE Transactions on Electromagnetic Compatibility, 2009
Upward connecting leaders can be initiated from humans under the influence of lightning downward stepped leaders, thereby causing severe injuries. In order to improve the scarce knowledge about the interaction of upward connecting leaders with humans, a self-consistent model based on the physics of leader discharges is used in this paper.
Marley Becerra, Vernon Cooray
openaire   +1 more source