Results 31 to 40 of about 1,886 (205)

Dancing Sprites Above a Lightning Mapping Array—An Analysis of the Storm and Flash/Sprite Developments [PDF]

Journal of Geophysical Research: Atmospheres, 2021
Abstract One of the most enigmatic types of sprites is the dancing sprite which appears to dance above the storm as sequential luminous emissions a few 100 ms or less apart. Dancing sprites occur in relatively small proportion and many aspects of their generation remain unknown.
Tomicic, Maja, Soula, Serge, Defer, Eric, Prieur, Serge, Mlynarczyk, Janusz, Farges, Thomas, Chanrion, Olivier, Köhn, Christoph, Neubert, Torsten   +8 more
openaire   +2 more sources

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Application of 3D scanning technology in Royal Malaysian Air Force Industrial Revolution 4.0‐based aircraft maintenance

IET Networks, EarlyView., 2022
Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy, Puteri N. E. Nohuddin, Istas Fahrurrazi Nusyirwan, Mohd Hanafi Ahmad Hijazi, Musaddak Maher Abdul Zahra   +4 more
wiley   +1 more source

Initial Results of Long-term Continuous Observation of Lightning Discharges by FALMA in Chinese Inland Plateau Region

Atmosphere, 2021
We started a long-term continuous observation of lightning discharges in the Chinese inland plateau region using a fast antenna lightning mapping array (FALMA).
Panliang Gao, Ting Wu, Daohong Wang
doaj   +1 more source

Polarity Asymmetries in Rocket‐Triggered Lightning

Geophysical Research Letters, 2023
The dissonant development of positive and negative lightning leaders is a central question in atmospheric electricity. It is also the likely root cause of other reported asymmetries between positive and negative lightning flashes, including the ones ...
C. L. daSilva, W. P. Winn, M. C. Taylor, G. D. Aulich, S. J. Hunyady, K. B. Eack, H. E. Edens, R. G. Sonnenfeld, P. R. Krehbiel, E. M. Eastvedt, J. J. Trueblood   +10 more
doaj   +1 more source

Analysis of the lightning production of convective cells [PDF]

Atmospheric Measurement Techniques, 2019
This paper presents an analysis of the lightning production of convective cells. The cells were detected by the MeteoSwiss Thunderstorms Radar Tracking (TRT) algorithm in the course of a lightning measurement campaign that took place in the summer of ...
J. Figueras i Ventura, N. Pineda, N. Pineda, N. Besic, J. Grazioli, A. Hering, O. A. van der Velde, D. Romero, A. Sunjerga, A. Mostajabi, M. Azadifar, M. Rubinstein, J. Montanyà, U. Germann, F. Rachidi   +14 more
doaj   +1 more source

A Parallax Shift Effect Correction Based on Cloud Top Height for FY-4A Lightning Mapping Imager (LMI)

Remote Sensing, 2023
The Lightning Mapping Imager (LMI) onboard the Fengyun-4A (FY-4A) satellite is the first independently developed satellite-borne lightning imager in China.
Yuansheng Zhang, Dongjie Cao, Jing Yang, Feng Lu, Dongfang Wang, Ruiting Liu, Hongbo Zhang, Dongxia Liu, Zhixiong Chen, Huimin Lyu, Wei Cai, Shulong Bao, Xiushu Qie   +12 more
doaj   +1 more source

Polarimetric radar characteristics of lightning initiation and propagating channels [PDF]

Atmospheric Measurement Techniques, 2019
In this paper we present an analysis of a large dataset of lightning and polarimetric weather radar data collected in the course of a lightning measurement campaign that took place in the summer of 2017 in the area surrounding Säntis, in the northeastern
J. Figueras i Ventura, N. Pineda, N. Pineda, N. Besic, J. Grazioli, A. Hering, O. A. van der Velde, D. Romero, A. Sunjerga, A. Mostajabi, M. Azadifar, M. Rubinstein, J. Montanyà, U. Germann, F. Rachidi   +14 more
doaj   +1 more source

Lightning Imaging with LOFAR

EPJ Web of Conferences, 2017
We show that LOFAR can be used as a lightning mapping array with a resolution that is orders of magnitude better than existing arrays. In addition the polarization of the radiation can be used to track the direction of the stepping discharges.
Scholten Olaf, Buitink Stijn, Dina Roxana, Dorosti Hasankiadeh Qader, Frieswijk Wilfred, Hendriks Freddie, Muller Jeroen, Sardjan Danny, Trinh Gia, Bonardi Antonio, Corstanje Arthur, Ebert Ute, Falcke Heino, Hörandel Jörg, Mitra Pragati, Mulrey Katharine, Nelles Anna, Rachen Jörg, Rossetto Laura, Rutjes Casper, Schellart Pim, Thoudam Satyendra, ter Veen Sander, Winchen Tobias   +23 more
doaj   +1 more source

An overview of the lightning and atmospheric electricity observations collected in southern France during the HYdrological cycle in Mediterranean EXperiment (HyMeX), Special Observation Period 1 [PDF]

Atmospheric Measurement Techniques, 2015
The PEACH project (Projet en Electricité Atmosphérique pour la Campagne HyMeX – the Atmospheric Electricity Project of the HyMeX Program) is the atmospheric electricity component of the Hydrology cycle in the Mediterranean Experiment (HyMeX) experiment ...
E. Defer, J.-P. Pinty, S. Coquillat, J.-M. Martin, S. Prieur, S. Soula, E. Richard, W. Rison, P. Krehbiel, R. Thomas, D. Rodeheffer, C. Vergeiner, F. Malaterre, S. Pedeboy, W. Schulz, T. Farges, L.-J. Gallin, P. Ortéga, J.-F. Ribaud, G. Anderson, H.-D. Betz, B. Meneux, V. Kotroni, K. Lagouvardos, S. Roos, V. Ducrocq, O. Roussot, L. Labatut, G. Molinié   +28 more
doaj   +1 more source