Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Lothar H. Ruhnke"'
Autor:
Lothar H. Ruhnke, Vladislav Mazur
Publikováno v:
Journal of Geophysical Research: Atmospheres. 119:2796-2810
Current cutoff in lightning channels, which takes place in the development of both intracloud and cloud-to-ground flashes, is still poorly understood. A new evaluation of the conditions leading to current cutoff, and also of the two existing hypothes
Publikováno v:
Journal of Electrostatics. 71:763-768
The existing interpretation in the lightning literature, based on field measurements, defines recoil leaders as negative leaders. However recoil leaders are floating conductors, and, based on this physical assumption, they should be defined as bipola
Autor:
Lothar H. Ruhnke, Vladislav Mazur
Publikováno v:
Journal of Geophysical Research: Atmospheres. 103:23299-23308
An axisymmetrical electrostatic model of charges in a thunderstorm cloud at the mature stage is used to initiate a bidirectional vertical leader that develops into either a cloud-to-ground or an intracloud flash from the regions of maximum electric f
Publikováno v:
Geophysical Research Letters. 22:2613-2616
The unique relationship between the leader and return stroke in cloud-to-ground flashes and the ambient cloud potential distribution is formulated. This relationship in the form of a ratio of an electric field produced by a leader, ΔEl, to that of a
Autor:
Vladislav Mazur, Lothar H. Ruhnke
Publikováno v:
2012 International Conference on Lightning Protection (ICLP).
Current cutoff in lightning channels is an essential part of the lifecycle of all types of lightning flashes, and plays a pivotal role in the way a lightning flash develops. Yet it has not been seriously investigated, and is still poorly understood.
Autor:
Lothar H. Ruhnke
Publikováno v:
2012 International Conference on Lightning Protection (ICLP).
A qualitative model of a branched, positive upward leader is discussed that explains observations of the current cutoff of base current before the end of leader structure development and the fast recovery of nearby electric fields. Screening of cloud
Autor:
Lothar H. Ruhnke, Vladislav Mazur
Publikováno v:
Heinz-Wolfram Kasemir: His Collected Works: Mazur/Heinz-Wolfram Kasemir: His Collected Works
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6a66faabb80600f94f607e003382382
https://doi.org/10.1029/sp066
https://doi.org/10.1029/sp066
Autor:
Lothar H. Ruhnke, Vladislav Mazur
Publikováno v:
Lightning Electromagnetics ISBN: 9781849192156
The development of a lightning flash, after initiation in a thunderstorm, occurs as a bidirectional, bipolar, zero-net-charge leader and electrodeless discharge. This process takes place in intracloud (IC), cloud-to-ground (CG), aircraft-triggered an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::868da2411b5f8b9f6eacad50deba743c
https://doi.org/10.1049/pbpo062e_ch6
https://doi.org/10.1049/pbpo062e_ch6
Autor:
Lothar H. Ruhnke
Publikováno v:
Journal of Atmospheric Electricity. 14:11-15
Autor:
Lothar H. Ruhnke, Vladislav Mazur
Publikováno v:
2010 30th International Conference on Lightning Protection (ICLP).
Upward lightning is known to be the most common type of lightning that interacts with tall structures on the surface of the earth. The initial stage of every upward lightning flash is an upward leader. A dart leader-return stroke cycle, i.e., a phase