Results 51 to 60 of about 41,225 (275)

A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition

Remote Sensing, 2021
To improve the accuracy of pulse matching and the mapping quality of lightning discharges, the Pearson correlation method combined with empirical mode decomposition (EMD) is introduced for discharge electric field pulse matching.
Yanhui Wang, Yingchang Min, Yali Liu, Guo Zhao   +3 more
doaj   +1 more source

Damage to metallic samples produced by measured lightning currents [PDF]

, 1991
A total of 10 sample disks of 2024-T3 aluminum and 4130 ferrous steel were exposed to rocket-triggered lightning currents at the Kennedy Space Center test site.
Fisher, Richard J., Schnetzer, George H.
core   +1 more source

On the Triggering Mechanisms of Upward Lightning [PDF]

Scientific Reports, 2019
AbstractUpward lightning studies took place in Rapid City, South Dakota, USA and S. Paulo, Brazil during the summer thunderstorm seasons from 2011 to 2016. One of the main objectives of these campaigns was to evaluate and characterize the triggering of upward positive leaders from tall objects due to preceding nearby flash activity.
Carina Schumann, Marcelo M. F. Saba, Tom A. Warner, Marco Ferro, John H. Helsdon, R. J. Thomas, Richard E. Orville   +6 more
openaire   +2 more sources

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source

Parametric Reconstruction Method for the Long Time-Series Return-Stroke Current of Triggered Lightning Based on the Particle Swarm Optimization Algorithm

IEEE Access, 2020
The lightning research group of the Chinese Academy of Meteorological Sciences has carried out observations and experiments with artificially triggered lightning for more than ten years, and it accumulated thousands of examples of channel base current ...
Xiangpeng Fan, Wen Yao, Yang Zhang, Liangtao Xu, Yijun Zhang, Paul R. Krehbiel, Dong Zheng, Hengyi Liu, Weitao Lyu, Shaodong Chen, Zhengshuai Xie   +10 more
doaj   +1 more source

Characteristics of broadband lightning emissions associated with terrestrial gamma ray flashes [PDF]

, 2011
To characterize lightning processes that produce terrestrial gamma ray flashes (TGFs), we have analyzed broadband (
Cummer, Steven A., Grefenstette, Brian W., Han, Feng, Li, Jingbo, Lu, Gaopeng, Smith, David M.   +5 more
core   +2 more sources

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

A Multiyear CONUS‐Wide Analysis of Lightning Strikes to Wind Turbines

Wind Energy
Lightning strikes to wind turbines (WTs) pose significant hazards and operational costs to the renewable wind industry. These strikes fall into two categories: downward cloud‐to‐ground (CG) strokes and upward discharges, which can be self‐initiated or ...
Ryan Said, Eric Grimit, Martin Murphy
doaj   +1 more source

Lightning Rings and Gravity Waves: Insights Into the Giant Eruption Plume From Tonga's Hunga Volcano on 15 January 2022

Geophysical Research Letters, 2023
On 15 January 2022, Hunga Volcano in Tonga produced the most violent eruption in the modern satellite era, sending a water‐rich plume at least 58 km high.
Alexa R. Van Eaton, Jeff Lapierre, Sonja A. Behnke, Chris Vagasky, Christopher J. Schultz, Michael Pavolonis, Kristopher Bedka, Konstantin Khlopenkov   +7 more
doaj   +1 more source

Searching for electromagnetic counterpart of LIGO gravitational waves in the Fermi GBM data with ADWO [PDF]

, 2016
The Fermi collaboration identified a possible electromagnetic counterpart of the gravitational wave event of September 14, 2015. Our goal is to provide an unsupervised data analysis algorithm to identify similar events in Fermi's Gamma-ray Burst Monitor ...
Bagoly, Z., Balázs, L. G., Csabai, I., Dobos, L., Horváth, I., Lichtenberger, J., Szécsi, D., Tóth, L. V.   +7 more
core   +3 more sources