Results 41 to 50 of about 3,916 (177)

Analysis of energetic radiation associated with thunderstorms in the Ebro delta region in Spain [PDF]

, 2016
The analysis of high-energy background radiation (0.1 – 2 MeV) enhancements during eight winter thunderstorms and ¿ve summer storms in the Ebro delta region in the northeast of Spain is presented.
Argemí Ribera, Oriol, Fabró Tàpia, Ferran, Montañá Puig, Juan, Pineda Rüegg, Nicolau, Romero Durán, David, Soula, Serge, Van der Velde, Oscar Arnoud   +6 more
core   +2 more sources

The communication of volcano information in New Zealand – a narrative review

New Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 591-608, December 2025.
ABSTRACT Communication of volcano information is critical for effective volcanic risk management. A variety of information is communicated to inform decisions and guide actions for planning, preparedness, and response. Such information needs to be reliable, and fit‐for‐purpose across different stages of volcanic activity (quiescence, unrest, short or ...
Manomita Das, Julia S. Becker, Emma E. H. Doyle, Danielle Charlton, Mary Anne Clive, Janine Krippner, Lauren J. Vinnell, Craig Miller, Carol Stewart, Hollei Gabrielsen, Sally H. Potter, Graham S. Leonard, David M. Johnston, Kelvin Tapuke, Nico Fournier, Sara K. McBride   +15 more
wiley   +1 more source

D‐Region Changes and Wave Activity Detected From Unusually Strong VLF Anomalies Associated With the January 2022 Tonga Volcanic Eruption

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract We present unusually strong daytime signal amplitude anomalies of 11.1 dB on JJI and 12.6 dB on VTX very low‐frequency (VLF) transmitter signals recorded at Suva, Fiji, due to the powerful Hunga Tonga–Hunga Ha'apai (HTHH) volcanic eruption (VE) on 15 January 2022 around 04:00 UT.
Sushil Kumar, Sarwan Kumar, Mie Ichihara
wiley   +1 more source

Rocket-triggered lightning strikes and forest fire ignition [PDF]

The following are presented: (1) background information on the rocket-triggered lightning project an Kennedy Space Center (KSC); (2) a summary of the forecasting problem; (3) the facilities and equipment available for undertaking field experiments at KSC;
Fenner, James
core   +4 more sources

The energy spectrum of X‐rays from rocket‐triggered lightning [PDF]

Journal of Geophysical Research: Atmospheres, 2015
Although the production of X-rays from natural and rocket-triggered lightning leaders have been studied in detail over the last 10 years, the energy spectrum of the X-rays has never been well measured because the X-rays are emitted in very short but intense bursts that result in pulse pileup in the detectors. The energy spectrum is important because it
S. Arabshahi, J. R. Dwyer, E. S. Cramer, J. E. Grove, C. Gwon, J. D. Hill, D. M. Jordan, R. J. Lucia, I. B. Vodopiyanov, M. A. Uman, H. K. Rassoul   +10 more
openaire   +1 more source

Pandemic, paternalism, and the (im)possibilities of citizenship in China

American Ethnologist, Volume 52, Issue 4, Page 401-413, November 2025.
Abstract How did Chinese citizens imagine their political subjectivity under the zero‐COVID regime? Our patchwork netnography of social media discussions (2020–22) analyzes how China's pandemic governance generalized and intensified “biopolitical paternalism”—a mode of rule that fused security, care, and economic rationality under the figure of a ...
Zhiying Ma, Yaochu Bi, Naiyu Jiang
wiley   +1 more source

Lightning Flashover Characteristic and Effective Protection Measures of 10 kV Distribution Line Network

Energies
Among various failure causes, lightning overvoltage represents the most significant threat to overhead distribution lines, which serve as critical components in power systems.
Song Zhang, Xiaobin Xiao, Lei Jia, Huaifei Chen, Lu Qu, Chakhung Yeung, Yuxuan Ding, Yaping Du   +7 more
doaj   +1 more source

Downward Terrestrial Gamma‐Ray Flash Associated With a Positive Cloud‐to‐Ground Lightning Flash

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract We observed a terrestrial gamma‐ray flash (TGF) shortly after the return stroke in a positive cloud‐to‐ground (+CG) flash during a 2025 winter thunderstorm in the Hokuriku region of Japan. The event was observed with multiple gamma‐ray detectors and radio antenna systems.
J. T. Sanchez, D. M. Smith, T. Wu, Q. Yang, D. Wang, M. Kamogawa, T. Suzuki   +6 more
wiley   +1 more source

Study on Transient Overvoltage and Surge Arrester Electrical Stresses in Offshore Wind Farms Under Multiple Lightning Strokes

Journal of Marine Science and Engineering
Lightning strikes are a major cause of wind turbine (WT) damage, with approximately 80% of cloud-to-ground lightning strikes exhibiting a multi-stroke characteristic. Therefore, studying the transient overvoltages induced by multiple lightning strokes is
Jie Zhang, Yong Wang, Jun Xiong, Junxiang Liu, Lu Zhu, Chao Huang, Jianfeng Shi, Yongxia Han   +7 more
doaj   +1 more source

Cutoff and Emergence of Dart Leaders in an Unbranched Positive Leader Simulation

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Channel cutoff is the process by which an active lightning channel cools down, goes dark, and loses its ability to effectively conduct electricity. Current cutoff precedes several lightning phenomena, notably dart leaders and return strokes, but the process by which a hot, highly‐conducting leader channel can undergo current cutoff is poorly ...
J. G. Pantuso, C. L. da Silva, D. P. Jensen, M. Stock, J. Wemhoner, S. Heckman, B. M. Hare, A. F. R. Leal, R. G. Sonnenfeld, O. Scholten, X.‐M. Shao   +10 more
wiley   +1 more source