Results 21 to 30 of about 1,439,375 (213)

Imaging lightning intracloud initial stepped leaders by low‐frequency interferometric lightning mapping array [PDF]

Geophysical Research Letters, 2016
AbstractBy comparing the source position of pulses during initial leaders and the paths of subsequent dart leaders from typical bilevel intracloud (IC) flashes, we demonstrate a new method to image the detailed three‐dimensional (3‐D) structure and stepping dynamics of IC initial leaders.
Fanchao Lyu, Steven A. Cummer, Gaopeng Lu, Xuan Zhou, Joel Weinert   +4 more
openaire   +2 more sources

Characteristics of Lightning Activities over the Tibetan Plateau Based on Satellite Detection and Its Circulation Background Analysis

Atmosphere, 2023
Based on the detection data obtained by the LMI (Lightning Mapping Imager)—China’s first satellite-based lightning observation payload—from 2018–2022, combined with the ERA5 (ECMWF Reanalysis v5) reanalysis data of the same period, the temporal and ...
Jie Zhu, Shulin Zhi, Suling Ren
doaj   +1 more source

Preliminary Research on a Comparison and Evaluation of FY-4A LMI and ADTD Data through a Moving Amplification Matching Algorithm

Remote Sensing, 2020
In this study, a new moving amplification matching algorithm was proposed, and then the temporal and spatial differences and correlation were analysed and evaluated by comparing the FengYun-4A Lightning Mapping Imager (FY-4A LMI) data and the China ...
Pengfei Li, Guofu Zhai, Wenjing Pang, Wen Hui, Wenjuan Zhang, Jing Chen, Liting Zhang   +6 more
doaj   +1 more source

Smart CMOS image sensor for lightning detection and imaging [PDF]

, 2013
We present a CMOS image sensor dedicated to lightning detection and imaging. The detector has been designed to evaluate the potentiality of an on-chip lightning detection solution based on a smart sensor.
Goiffon, Vincent, Rolando, Sébastien, Molina, Romain, Guiry, Saïprasad, Tulet, Michel, Corbière, Franck, Larnaudie, Franck, Bréart-de-Boisanger, Michel, Leone, Bruno, Perez-Cuevas, Leticia, Saint-Pé, Olivier, Magnan, Pierre, Zayer, Igor   +12 more
core   +1 more source

Case Study of a Retrieval Method of 3D Proxy Reflectivity from FY-4A Lightning Data and Its Impact on the Assimilation and Forecasting for Severe Rainfall Storms

Remote Sensing, 2020
As the first Geostationary Satellite with the LMI (Lightning Mapping Imager) instrument aboard running over the eastern hemisphere, FY-4A (Feng-Yun-4A) can better indicate severe convection and compensate for the limitations of radar observation in ...
Yaodeng Chen, Zheng Yu, Wei Han, Jing He, Min Chen   +4 more
doaj   +1 more source

Spatio-temporal dimension of lightning flashes based on three-dimensional Lightning Mapping Array [PDF]

, 2017
3D mapping system like the LMA - Lightning Mapping Array - are a leap forward in lightning observation. LMA measurements has lead to an improvement on the analysis of the fine structure of lightning, allowing to characterize the duration and maximum ...
Pineda Rüegg, Nicolau, Van der Velde, Oscar Arnoud, Fabró Tàpia, Ferran, David Romero, Nicolau Pineda, López Trujillo, Jesús Alberto, Joan Montanyà, Oscar van der Velde, Jesús A. López, Montañá Puig, Juan, Ferran Fabró, Romero Durán, David   +11 more
core   +1 more source

On the classification of self-triggered versus other-triggered lightning flashes [PDF]

, 2018
We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017.
Sunjerga, A., A. Mostajabi, Rubinstein, Marcos, Rubinstein, M., D. Romero, Rachidi, Farhad, G. Diendorfer, J. Montanya, Sunjerga, Antonio, N. Pineda, O. A. Van der Velde, M. Rubinstein, Montanya, Joan, Diendorfer, Gergard, Romero Durán, David, Van der Velde, Oscar Arnoud, Azadifar, M., Pineda, Nicolau, Romero, David, Mostajabi, A., F. Rachidi, M. Azadifar, Pineda Rüegg, Nicolau, Van der Velde, Oscar, Mostajabi, Amirhossein, Azadifar, Mohammad, Diendorfer, Gerhard, A. Sunjerga   +27 more
core   +1 more source

A simultaneous observation of lightning by ASIM, Colombia‐Lightning Mapping Array, GLM and ISS‐LIS [PDF]

, 2021
The Atmosphere‐Space Interactions Monitor (ASIM) on the International Space Station (ISS) provides optical radiances and images of lightning flashes in several spectral bands.
David Romero, Ladino Rincón, Alfonso, Nikolai Østgaard, Montañá Puig, Juan, Navarro-Gonzalez, Javier, Reglero, Víctor, Navarro González, Javier, Ferran Fabró, Fabró Tàpia, Ferran, Freijo Álvarez, Modesto, Nicolau Pineda, Montanyà, Joan, Steven J. Goodman, Jesús A. López, Navarro‐González, Javier, Ricard Horta, Alfonso Ladino‐Rincon, Solà de las Fuentes, Glòria, Morales Rodríguez, Carlos Augusto, Romero Durán, David, Pineda, Nicolau, Van der Velde, Oscar Arnoud, Horta Bernús, Ricard, Solà, Glòria, Freijó, Modesto, Carlos A. Morales Rodriguez, Romero, David, van der Velde, Oscar A., Fabró, Ferran, Chanrion, Olivier, Víctor Reglero, Ladino‐Rincon, Alfonso, Oscar A. van der Velde, Ladino-Rincon, Alfonso, Glòria Solà, Javier Navarro‐González, López, Jesús A., Torsten Neubert, Østgaard, Nikolai, López Trujillo, Jesús Alberto, Joan Montanyà, Olivier Chanrion, Morales Rodriguez, Carlos A., Modesto Freijó, Goodman, Steven J., Neubert, Torsten, Horta, Ricard   +46 more
core   +1 more source

MTG lightning imager : prolegomena [PDF]

, 2023
W artykule zaprezentowano nowatorski, satelitarny instrument teledetekcyjny – Lightning Imager, znajdujący się na pokładzie niedawno umieszczonego na orbicie geostacjonarnej satelity Meteosat Third Generation – Imager 1.
Iwański, Rafał
core   +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