Results 81 to 90 of about 43,495 (253)

Transient behavior of wind towers grounding systems under lightning strikes [PDF]

, 2015
Wind turbines, because of their height and localization, are frequently subject to direct lightning strikes. Thus, the investigation on the performance of their grounding system is of paramount interest for the prediction of the potential threats either ...
ARANEO, Rodolfo, CELOZZI, Salvatore
core   +1 more source

Direct Ionosonde Evidence of F‐Layer Disturbances Driven by Intense Lightning Activity at Low Latitudes

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Thunderstorms could cause the irregularities of electron density distributions in the ionosphere by exciting gravity waves and modifying ambient electric field (E‐field). By comparing the DPS‐4D ionosonde observation at 5‐min resolution at Fuke Station in Hainan, China with the lightning detection data, we studied the F‐layer responses to a ...
Zhengwei Cheng, Mao Zhang, Hailiang Huang, Guojun Wang, Zheng Wang, Sheping Shang, Xiao Wang, Maosheng He, Yajun Zhu, Hui Li, Yaoling Zhi, Gaopeng Lu   +11 more
wiley   +1 more source

Long term time variability of cosmic rays and possible relevance to the development of life on Earth

, 2010
An analysis is made of the manner in which the cosmic ray intensity at Earth has varied over its existence and its possible relevance to both the origin and the evolution of life.
A. D. Erlykin, A. W. Wolfendale, AB Lu, AC Overholt, AD Erlykin, AD Erlykin, AD Erlykin, AD Erlykin, AV Gurevich, AV Gurevich, B Laken, BA Tinsley, BA Tinsley, CW Allen, DJ Hofman, DR Kniveton, E Palle Bago, EP Ney, F Arnold, Guy-Ho Lim, GV Starkov, H Svensmark, H Svensmark, H Svensmark, I Yu Stozhkov, IG Usoskin, IV Kudryavtsev, J Lastovicka, J Wdowczyk, JD Haigh, JL Bada, JR Dwyer, KM Creer, M Voiculescu, MG Looper, MI Pudovkin, MJ Rogers, N Marsh, NJ Shaviv, NJ Shaviv, OI Shumilov, P Tonev, PC Frisch, PIY Velinov, RH Saunders, SD Hunter, SL Miller, T Sloan, V Yukhimuk   +48 more
core   +1 more source

Influence of convective transport on tropospheric ozone and its precursors in a chemistry-climate model [PDF]

, 2005
The impact of convection on tropospheric O3 and its precursors has been examined in a coupled chemistry-climate model. There are two ways that convection affects O3. First, convection affects O3 by vertical mixing of O3 itself.
Collins, W. J., Doherty, R. M., Sanderson, M. G., Stevenson, D. S.   +3 more
core   +3 more sources

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

Temporal Change in Resistivity Structure Before and After the 2018 Small Phreatic Eruption Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A small phreatic eruption occurred on April 2018 Iwo‐yama, Kirishima volcanic complex, Japan. We estimated the change in the subsurface resistivity structure before and after the phreatic eruption by repeated magnetotelluric (MT) measurements. A substantial decrease in resistivity was determined in the zone from the surface down to a depth of ...
K. Aizawa, N. Matsushima, Y. Matsunaga
wiley   +1 more source

Downward Positive Leader Propagation Modes and Their Effects in Positive Cloud‐to‐Ground Lightning Characteristics

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The return stroke in a cloud‐to‐ground (CG) flash is initiated when the downward leader either reaches the ground or connects with an upward leader from a grounded structure. Unlike negative downward leaders, which typically propagate in a highly branched manner, downward positive leaders (DPLs) can propagate either in a branched or unbranched
Marcelo M. F. Saba, Diego R. R. da Silva, Ivan T. Cruz, Tagianne P. da Silva, Paola B. Lauria, José Claudio O. Silva, Gabriel S. Diniz, Tom A. Warner, Rasha U. Abbasi, João Carlos M. Alves, Giovane B. Suss, Miguel B. Guimarães Neto, Listz S. Araujo, Ny T. Kieu   +13 more
wiley   +1 more source

Characteristics of Upward Lightning Flashes

, 2018
In addition to the general aims of lightning research such as lightning physics and meteorology, the study of upward lightning is of particular importance in protection of tall objects such as wind turbines and telecommunication towers. It also helps us in better understanding the lightning initiation process and its role in the earth- atmosphere ...
openaire   +1 more source

Pseudo‐Radar Reflectivity by Applying U‐Net Models to Global Passive Microwave Brightness Temperatures

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Spaceborne radar systems such as the Global Precipitation Measurement Mission (GPM)'s core satellite Dual‐frequency Precipitation Radar (DPR) provide global insight into precipitation structure, storm morphology, and hydrological cycles. However, their limited spatial and temporal sampling and high cost constrain their ability to continuously ...
Florian Morvais, Chuntao Liu
wiley   +1 more source

Studying Recorded lightning over Iraq for Period 1998-2011

Al-Mustansiriyah Journal of Science, 2018
This research studies distribution of thunderstorm in Iraq for the period (1998-2011), the result showed that  the largest regions which had been hit by lightning stroke were between latitude (35-36◦)E and longitude (45-46◦)N, and April was the most ...
Lena Mohammed Abbas
doaj   +1 more source