Zobrazeno 1 - 10
of 113
pro vyhledávání: '"F R, Leal"'
Autor:
B. Smith, M. G. McHarg, C. L. daSilva, R. G. Sonnenfeld, J. Koile, A. F. R. Leal, I. R. Jones
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)
Abstract Neuromorphic sensors have inherently‐fast speeds and low data rates, which potentially make them ideal for the observation of transient sources, such as lightning and sprites. Particularly, for remote observations. In this article, we repo
Externí odkaz:
https://doaj.org/article/0f8672f90f054192b1332a5c55bbfefa
Publikováno v:
Remote Sensing, Vol 15, Iss 24, p 5635 (2023)
Lightning Electromagnetic Pulses, or LEMPs, propagate in the Earth–ionosphere waveguide and can be detected remotely by ground-based lightning electric field sensors. LEMPs produced by different types of lightning processes have different signature
Externí odkaz:
https://doaj.org/article/7e7524f681864097b96eb72bdf7dbc61
Autor:
Adonis F. R. Leal, Rodrigo M. S. de Oliveira, Nathan M. Lopes, Thiago S. de Lima, Eduardo R. Ferreira, Nilton Rodolfo N. M. Rodrigues
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 2, Pp 307-319 (2021)
Abstract The Amazon region has high lightning occurrence rates, with many lightning hot spots. Different rivers cross the Amazon rainforests and the people that live there use these rivers as roads to go from one place to another. Every year, lightni
Externí odkaz:
https://doaj.org/article/f4ba4756da714d2cb1115d36d03d28ba
Autor:
Adonis F. R. Leal, Vladimir A. Rakov
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-15 (2019)
Abstract The occurrence context of compact intracloud discharges (CIDs) is examined using their electric field waveforms and corresponding NLDN data. A total of 1096 CIDs transporting negative charge upward and 8 CIDs transporting positive charge upw
Externí odkaz:
https://doaj.org/article/218e8574f04344ff943d42752ffd62d6
Autor:
Vladimir A. Rakov, Adonis F. R. Leal
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 63:1989-1997
Dependence of lightning electric field waveform parameters on distance between the lightning channel and the field measuring point is examined. The analyses are performed based on representative wideband electric field waveforms that were obtained by
Autor:
Adonis F. R. Leal, Elton Alves
Publikováno v:
IEEE Latin America Transactions. 19:1959-1966
Lightning electric field (E-field) waveforms are widely used in understanding the physical processes that take place during different lightning events and for improving engineering return-stroke models that helps the design of better lightning protec
Autor:
Adonis F. R. Leal, Vladimir A. Rakov
Publikováno v:
2022 36th International Conference on Lightning Protection (ICLP).
Publikováno v:
2022 36th International Conference on Lightning Protection (ICLP).
Autor:
Vladimir A. Rakov, Adonis F. R. Leal
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 63:1155-1162
A new approach to the characterization of CG lightning electric field waveforms using a large database is presented. The waveforms, recorded in a wide (160 Hz–500 kHz) frequency range, are categorized into groups, depending on stroke order (first o
Publikováno v:
IEEE Latin America Transactions. 19:755-762
Lightning represent a potential threat to various society activities, such as damage to telecommunication systems and the distribution of electric power, as well as injury or death of humans beings. Predicting the occurrence of lightning can help in