Results 71 to 80 of about 1,886 (205)

A Case Study on the Vertical Distribution and Correlation Between Low-Frequency Lightning Sources and Hydrometeors During a Thunderstorm

Remote Sensing
Understanding the interplay between lightning activity and hydrometeor distribution is crucial for advancing knowledge of thunderstorm electrification processes.
Sulin Jiang, Fanchao Lyu, Steven A. Cummer, Tianxue Zheng, Mingjun Wang, Yan Liu, Weitao Lyu   +6 more
doaj   +1 more source

Development of ± 550 kV DC GIS Basin Insulator

High Voltage, EarlyView.
ABSTRACT The basin insulator is a core component of the insulation system for ± 550 kV gas‐insulated switchgear (GIS). This paper, using a finite element method for multi‐physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators.
Shaohua Cao, Chengwei Jing, Siqiong Zhang, Zuodong Liang, Zehao Zhang, Fangwei Liang, Yong Yang, Geng Chen, Jinliang He, Chuanyang Li   +9 more
wiley   +1 more source

Measurements of Size and Electrical Charges Carried by Precipitation Particles During RELAMPAGO Field Campaign

Earth and Space Science, 2022
The electrical charge carried by raindrops provides significant information about thunderstorm electrification mechanisms, since the charge acquired by hydrometeors is closely related to the microphysical processes that they undergo within clouds ...
Eldo Ávila, Lucia Martínez, Rodolfo Pereyra, Timothy Lang, Wiebke Deierling, Matthew Wingo, Gregory Melo, Bruno Medina   +7 more
doaj   +1 more source

Comprehensive Design and Experimental Validation of 30 kV Ultra‐Fast Flexible Controllable Arresters for HVDC Systems

High Voltage, EarlyView.
ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang, Xiangyu Zhang, Sihang Wu, Lei Qi, Xiang Cui   +4 more
wiley   +1 more source

Statistical analysis of storm electrical discharges reconstituted from a lightning mapping system, a lightning location system, and an acoustic array [PDF]

, 2016
International audienceIn the framework of the European Hydrological Cycle in the Mediterranean Experiment project, a field campaign devoted to the study of electrical activity during storms took place in the south of France in 2012.
Louis‐Jonardan Gallin, Mathieu Nuret, Gallin, Louis-Jonardan, William Rison, Eric Defer, François Coulouvrat, Thomas Farges, Marchiano, Régis, Rison, William, Schulz, Wolfgang, Coulouvrat, François, Wolfgang Schulz, Farges, Thomas, Nuret, Mathieu, Régis Marchiano, Defer, Eric   +15 more
core   +1 more source

PowerGPT‐R1: Vision‐Language Reinforcement Fine‐Tuning With Verifiable Reward for Power Inspection

High Voltage, EarlyView.
ABSTRACT Vision‐driven intelligent power inspection systems have long faced the challenge of scarce high‐quality datasets in specialised domains, leading to limited performance of traditional deep learning methods (e.g., Faster‐RCNN) in few‐shot learning scenarios. Recent breakthroughs in language models, particularly the open‐source DeepSeek‐R1 model,
Yangyang Zhong, Pengxin Luo, Yunfeng Yan, Jun Feng, Shixiang Tang, Weizhen He, Yiheng Deng, Yi Chen, Yuhao Zhou, Qi Li, Xianbo Wang, Fushuan Wen, Donglian Qi   +12 more
wiley   +1 more source

Inter-Comparison of Lightning Measurements in Quasi-Linear Convective Systems

Atmosphere
Data from four lightning networks collected during three quasi-linear convective systems (QLCS) are used to understand the differences in detection for optimizing their combined use.
Jacquelyn Ringhausen, Vanna Chmielewski, Kristin Calhoun   +2 more
doaj   +1 more source

Basic lightning flash properties derived from lightning mapping array data [PDF]

The size and duration of lightning flashes are examined. Data from the Ebro Valley Laboratory Lightning Mapping Array is used as reference. Additional data from the VLF/LF LINET network is included.
Van der Velde, Oscar Arnoud, Argemí Ribera, Oriol, Fabró Tàpia, Ferran, Pineda Ruegg, Nicolau, Aranguren Fino, Daniel, Montañá Puig, Juan, Solà de las Fuentes, Glòria, Romero Durán, David   +7 more
core  

High altitude leaders mapped by the Colombia lightning mapping array [PDF]

On April 2015 a Lightning Mapping Array network (COL-LMA) was installed at the north of Colombia. This network provides 3D mapping of the development of lightning leaders. For the first time such network has been setup in the tropics.
Van der Velde, Oscar Arnoud, Fabró Tàpia, Ferran, López Trujillo, Jesús Alberto, Montañá Puig, Juan, Romero Durán, David   +4 more
core  

Post-return stroke VHF electromagnetic activity in north-western Mediterranean cloud-to-ground lightning flashes [PDF]

Atmospheric Chemistry and Physics
We investigate properties of the electromagnetic activity following the first lightning return stroke (RS), using concurrent observations from the SLAVIA (Shielded Loop Antenna with a Versatile Integrated Amplifier) sensor, the SAETTA (Suivi de l ...
A. Kolínská, A. Kolínská, I. Kolmašová, I. Kolmašová, E. Defer, O. Santolík, O. Santolík, S. Pédeboy   +7 more
doaj   +1 more source