Results 51 to 60 of about 40,564 (247)

First ground-based observations of sprites over southern Africa

South African Journal of Science, 2018
Sprites are the optical signatures of electrical discharges in the mesosphere triggered by large lightning strikes associated with thunderstorms. Since their discovery in the late 1980s, sprites have been observed extensively around the world, although ...
Stanislaus Nnadih, Mike Kosch, Peter Martinez, Jozsef Bor   +3 more
doaj   +1 more source

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

Direct lightning strikes to the lightning protective system of a residential building: triggered-lightning experiments [PDF]

IEEE Transactions on Power Delivery, 2002
Summary form only given. Lightning triggered from natural thunderclouds using the rocket-and-wire technique was employed in order to subject to direct lightning strikes the lightning protective system of a test house at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida, USA. The electrical circuit of the test
V.A. Rakov, M.A. Uman, M.I. Fernandez, C.T. Mata, K.J. Rambo, M.V. Stapleton, R.R. Sutil   +6 more
openaire   +1 more source

Earthquake and Tsunami NaTech Risk Assessment for Oil Storage Facilities

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Interaction of natural and technological hazards (NaTech) events, such as tsunamis and earthquakes, can affect industrial facilities such as those featuring anchored atmospheric storage tanks. Consequences of natural events on this kind of installation may include the release of hazardous substances, which in turn can lead to industrial ...
Georgios Baltzopoulos, Pasquale Cito, Federica Ricci, Manuela Volpe, Jacopo Selva, Valerio Cozzani, Iunio Iervolino   +6 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

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

“Thinking Out Loud” and “Pivoting on the Fly”—An Empirical Review and Critical Incident Study of How Physicians Engage in Incidental Learning Amidst Complexity

Human Resource Development Quarterly, EarlyView.
ABSTRACT This study explores incidental learning among physicians navigating uncertainty during the COVID‐19 pandemic. Using a constructivist research design, we conducted a literature review of 13 empirical studies on incidental learning in complexity and analyzed critical incident interviews with 12 emergency medicine and intensive care physicians ...
Henriette Lundgren, Karen E. Watkins, Victoria J. Marsick, Dimitrios Papanagnou, Urvashi Vaid   +4 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

Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation

Geophysical Research Letters, 2023
We examine the low‐frequency (LF) magnetic pulses recorded for the positive leader in two natural lightning flashes as recorded on the high‐speed video camera.
Ziyi Wang, Gaopeng Lu, Xiao Li, Hongbo Zhang, Yanfeng Fan, Huan Ren, Chenxiao Zhang, Rubin Jiang, Xiushu Qie, Morris B. Cohen, Zhichao Wang   +10 more
doaj   +1 more source

Spatiotemporal Correlation between Artificially Triggered and Adjacent Natural Lightning Flashes

Remote Sensing, 2022
A triggered lightning flash (TLF) provides a unique perspective on the relationship between spatiotemporal proximity flashes, owing to its determined location and time, convenient direction measurement, and explicit association with the charge region. In
Xiaojie Liu, Dong Zheng, Yang Zhang, Yijun Zhang, Xiangpeng Fan, Weitao Lyu, Wen Yao, Yanfeng Fan   +7 more
doaj   +1 more source