Results 21 to 30 of about 58 (45)

Corrected event dataset of FengYun-4A Lightning Mapping Imager (FY-4A LMI), 2019–2023 [PDF]

Earth System Science Data
The Lightning Mapping Imager (LMI) aboard FengYun-4A (FY-4A) has accumulated substantial observational data. To address remaining systematic geolocation deviations, we propose a correction method using World Wide Lightning Location Network (WWLLN) as a ...
Y. Zhang, Y. Zhang, X. Qie, X. Qie, R. Jiang, D. Cao, J. Yang, D. Wang, M. Liu, D. Liu, Z. Sun, H. Zhang, S. Yuan   +12 more
doaj   +1 more source

Runaway electrons during subnanosecond breakdowns in high‐pressure gases

High Voltage, Volume 1, Issue 4, Page 181-191, December 2016., 2016
The parameters of runaway electrons produced in nanosecond high‐voltage discharges in different gases (air, nitrogen, sulphur hexafluoride, krypton, argon, methane, neon, hydrogen, helium) at atmospheric and higher pressure were studied. An optical analysis was also performed to investigate the ionisation dynamics in diffuse discharges in nitrogen and ...
Victor F. Tarasenko, Mikhail I. Lomaev, Dmitry V. Beloplotov, Dmitry A. Sorokin   +3 more
wiley   +1 more source

A Multiband Optical‐Radio View of Lightning Return Strokes Exposes Divergent 337/777 nm Emission Dynamics

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Simultaneous observations of ultraviolet (337 nm) and near‐infrared (777 nm) lightning emissions provide insight into streamer and leader processes. However, coordinated ground‐based measurements of these bands during return strokes remain scarce.
A. F. R. Leal, J. Wemhoner, C. L. da Silva, R. G. Sonnenfeld   +3 more
wiley   +1 more source

Three‐Dimensional Lightning Characteristics of Severe Convective Weather in Shanghai

Meteorological Applications, Volume 33, Issue 2, March/April 2026.
Using 2022–2024 ADTD data, this study analyzes 3D lightning in Shanghai's severe convection. Activity peaks in August and afternoon hours, varies by weather type, and concentrates spatially in Pudong and Chongming. Results provide key references for selecting lightning indicators in forecasting and warning systems. ABSTRACT Using ADTD three‐dimensional
Gaoyue Gu, Zhisu Wang, Peng Wang
wiley   +1 more source

Comparison of FY-4A Satellite LMI Data and Ground-based Lightning Detection Data in Beijing-Tianjin-Hebei Region

应用气象学报
Based on lightning groups detected by lightning mapping imager (LMI) of FY-4A meteorological satellite and lightning electromagnetic pulse (LEMP) detected by DDW1 sensors of national lightning detection system from April to August during 2021-2023 ...
Yao Huiru, Liu Yong, Li Yafei, Cui Danyang, Zhou Yanchuan   +4 more
doaj   +1 more source

AttUnet_R_SFT: A Novel Network to Explore the Application of Complex Terrain Information in Satellite Precipitation Estimating

Earth and Space Science, Volume 11, Issue 6, June 2024.
Abstract Accurate rainfall measurement with a precise spatial and temporal resolution is essential for making informed decisions during disasters and conducting scientific studies, particularly in regions characterized by intricate terrain and limited coverage of automated weather stations.
Lu Zhang, Zeming Zhou, Jiping Guan, Yanbo Gao, Lifeng Zhang, Movlan Kader   +5 more
wiley   +1 more source

Ground‐Based Observations of 337 nm and 777 nm Optical Emissions Produced by Lightning

Journal of Geophysical Research: Atmospheres, Volume 129, Issue 10, 28 May 2024.
Abstract Lightning flashes were observed in Barrancabermeja (Colombia) by two photometers centered at 337 and 777 nm wavelengths, a high‐speed camera, and the Colombia Lightning Mapping Array. Both optical and VHF radio emissions of different lightning processes are investigated.
José A. Roncancio, Joan Montanyà, Jesús A. López, Michele Urbani, Oscar A. van der Velde, Marcelo Arcanjo   +5 more
wiley   +1 more source

Three-Dimensional Lightning Characteristics Analysis over the Tibetan Plateau Based on Satellite-Based and Ground-Based Multi-Source Data

Atmosphere
Based on the data from the Chinese national ground-based (LFEDA: Low-frequency E-field Detection Array) and satellite-based lightning-detection systems (LMI: Lightning Mapping Imager), the spatial and temporal distribution statistical properties of all ...
Jie Zhu, Shulin Zhi, Dong Zheng, Zhengguo Yuan   +3 more
doaj   +1 more source

Improving prediction of short-duration heavy rainfall in Guangxi, China during the pre-summer rainy season based on Fengyun-4A lightning frequency and a machine learning algorithm

Frontiers in Earth Science
IntroductionThis study investigated the relationships between short-duration heavy rainfall (SDHR) events and lightning activity over Guangxi, China, during the pre-summer rainy season from 2019 to 2023.MethodsThe analysis was conducted using the ...
Weixiang Huang, Xiaoli Luo, Wei Zhang, Bo Feng, Xiaofei Xia, Chenying Yi, Weijun Hu   +6 more
doaj   +1 more source

Study on Temporal and Spatial Distribution Characteristics of Lightning on Qinghai-Xizang Plateau in Summer 2019-2023

Gaoyuan qixiang
The Qinghai-Xizang Plateau， due to its high altitude， exhibits unique lightning and convective activity compared to lower-altitude regions.Using the ‘Group’ data from the Lightning Mapping Imager （LMI） on the Fengyun-4A satellite， a statistical analysis ...
Jianghao AN, Sheng CHEN, Zeyong HU
doaj   +1 more source