Results 191 to 200 of about 71,732 (333)

Investigating the relationship between the frequency of thunderstorms and temperature trend in Mashhad

تحقيقات جغرافيايی, 2017
This study examined the relationship between frequency of thunderstorms and the mean temperature in the city of Mashhad. For this purpose, the average of monthly and annual temperatures data and average of monthly and annual frequency of thunderstorms ...
Seyyedeh Mahboobeh Moosavi, Azar Zarrin, Abbas Mofidi, Seyyedeh Fatemeh Hosseini   +3 more
doaj  

Comparative Study of Upward Leader Inception During the Initial Stage of Negative and Positive Altitude‐Triggered Lightning

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Comparative analysis of positive and negative altitude‐triggered lightning striking a 30‐m tower beneath 35‐m floating wires reveals detailed bidirectional leader processes. It provides the first observational evidence of bidirectional leader behavior in positive altitude‐triggered lightning and highlights the connection process's driving ...
Ruiling Chen, Rubin Jiang, Zhuling Sun, Hongbo Zhang, Mingyuan Liu, Zhaowu Liu, Zhimin Xia, Shanqing Gu, Xiushu Qie   +8 more
wiley   +1 more source

Vorticity imbalance and stability in relation to convection [PDF]

A complete synoptic-scale vorticity budget was related to convection storm development in the eastern two-thirds of the United States. The 3-h sounding interval permitted a study of time changes of the vorticity budget in areas of convective storms ...
Read, W. L., Scoggins, J. R.
core   +1 more source

Remarkable Characteristics of Cloud-to-Ground Discharges Observed in Winter Thunderstorms in Hokuriku Area, Japan

, 1976
Tosio Takeuti, Minoru Nakano, Yutaka Yamamoto   +2 more
openalex   +2 more sources

MOS and RREA Processes in Thunderclouds: Intensities and Spectral Shapes

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract The Relativistic Runaway Electron Avalanche (RREA) is the primary mechanism for enhancing atmospheric electron and gamma‐ray fluxes when the electric field exceeds a density‐dependent threshold. Another, non‐threshold process—Modification of the Electron Energy Spectrum (MOS)—occurs when subcritical fields energize ambient electrons, shifting ...
Ashot Chilingarian, Mary Zazyan
wiley   +1 more source

Epidemic thunderstorm asthma [PDF]

The Lancet Respiratory Medicine, 2022
openaire   +2 more sources

A lightning cluster identification method considering multi-scale spatiotemporal neighborhood relationships. [PDF]

PLoS One
Shi M, Fan P, Tao H, Li Q, Wang J, Liu Y, Wei L.   +6 more
europepmc   +1 more source

Sunset Bores Over the Southern North China Plain

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract This study examines the genesis of atmospheric bores near sunset and their role in initiating and maintaining late‐afternoon mesoscale convective systems (MCSs) over the Southern North China Plain. A key finding is that 20% of documented bore occur during the sunset period.
Shushi Zhang, Long Huang, David B. Parsons, Xin Xu, Hong Huang, Qiying Chen, Fanchao Lyu, Fen Xu, Gang Chen, Abuduwaili Abulikemu   +9 more
wiley   +1 more source

Investigation of a Thunderstorm Asthma Event - Chongqing Municipality, China, April 2024. [PDF]

China CDC Wkly
Yi G, Yang L, Hu G, Xiong Y, Wang Z, Zeng Q, Qi L, Long J.   +7 more
europepmc   +1 more source

Enhancing Machine Learning Models for Nowcasting and Short‐Term Forecasting of Precipitation With a Novel Probability‐Matching Loss Function

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Machine learning (ML) precipitation forecasting models typically employ a mean squared error (MSE) loss function for optimization. However, due to the well‐known “double penalty” effect, MSE‐based losses often lead to overly smoothed prediction fields and a systematic underestimation of the frequency of heavy rainfall.
Yuan Cao, Shuaiyi Li, Jie Feng, Lei Chen, Hao Li, Yijun Zhang   +5 more
wiley   +1 more source