Results 191 to 200 of about 71,732 (333)
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 +3 more
doaj
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 +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
MOS and RREA Processes in Thunderclouds: Intensities and Spectral Shapes
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
A lightning cluster identification method considering multi-scale spatiotemporal neighborhood relationships. [PDF]
Shi M +6 more
europepmc +1 more source
Sunset Bores Over the Southern North China Plain
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 +9 more
wiley +1 more source
Investigation of a Thunderstorm Asthma Event - Chongqing Municipality, China, April 2024. [PDF]
Yi G +7 more
europepmc +1 more source
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 +5 more
wiley +1 more source

