English
Related papers

Related papers: About Geometry and Initial Phase of Cloud-to-Groun…

200 papers

The paper presents a model of electric charge generation in precipitating clouds due to breaking of large particles in low melting layer. The Earth's electric field polarises the droplets and they break into small negatively charged and…

Atmospheric and Oceanic Physics · Physics 2007-05-23 A. V. Kochin

Terrestrial Gamma ray Flashes (TGFs) -- very short, intense bursts of electrons, positrons, and energetic photons originating from terrestrial thunderstorms -- have been detected with satellite instruments. TETRA, an array of NaI(Tl)…

High Energy Astrophysical Phenomena · Physics 2013-12-20 Rebecca Ringuette , Gary L. Case , Michael L. Cherry , Douglas Granger , T. Gregory Guzik , Michael Stewart , John P. Wefel

Proceeding from a stormy day of 22 September 2022, when 7 thunderstorm ground enhancements occurred (TGEs, 3 of them very large), we perform an analysis of the most important conditions, on which depend the origination of the large particle…

Atmospheric and Oceanic Physics · Physics 2023-05-24 A. Chilingarian , G. Hosepyan , T. Karapetyan , B. Sargsyan

The initiation of giant electrical discharges called as "gigantic jets" connecting thunderclouds to the ionosphere is investigated by numerical simulation method in this paper. Using similarity relations, the triggering conditions of…

Geophysics · Physics 2021-03-24 Lizhu Tong , Kenichi Nanbu , Hiroshi Fukunishi

The absorption of a high-energy photon from the external cosmic gamma-ray background in the inner neutron star magnetosphere triggers the generation of a secondary electron-positron plasma and gives rise to a lightning - a lengthening and…

High Energy Astrophysical Phenomena · Physics 2011-11-02 Ya. N. Istomin , D. N. Sob'yanin

An exceptionally simple model of ball lightning is proposed that describes it as a highly charged sphere of hot, conductive, air surrounded by colder air. This conductive sphere possesses a net excess of charge. This charge will create a…

Plasma Physics · Physics 2025-01-10 Chris Allen Broka

Lightning was detected by Voyager 2 at Uranus and Neptune, and weaker electrical processes also occur throughout planetary atmospheres from galactic cosmic ray (GCR) ionisation. Lightning is an indicator of convection, whereas electrical…

Space Physics · Physics 2020-05-12 K. L. Aplin , G. Fischer , T. A. Nordheim , A. Konovalenko , V. Zakharenko , P. Zarka

Tornadoes are severe weather phenomena characterized by a violently rotating column of air connecting the ground to a parent storm. Within the United States, hundreds of tornadoes occur every year. Despite this, the dynamics of tornado…

High Energy Astrophysical Phenomena · Physics 2025-09-08 William Luszczak , Leigh Orf

A case is made that in encounters with the earth's atmosphere, astrophysical little black holes (LBH) can manifest themselves as the core energy source of balllightning (BL). Relating the LBH incidence rate on earth to BL occurrence has the…

Astrophysics · Physics 2015-06-24 Mario Rabinowitz

Lightning flashes are rare albeit hazardous events. Despite this scarcity, generalized additive models (GAMs) succeed in producing a climatology of lightning occurrence for the eastern Alps and surrounding lowlands at an unprecedented…

Atmospheric and Oceanic Physics · Physics 2022-05-03 Thorsten Simon , Georg J. Mayr

Lightning flashes result in an instantaneous emission of electromagnetic (EM) waves that encompass a broad spectrum of frequencies in the domain of radio waves. The signature of these impulses in the region of the very low frequency (VLF)…

Geophysics · Physics 2025-04-14 István Gere

In order to investigate the origin of the interstellar turbulence, detailed observations in the CO J=1--0 and 3--2 lines have been carried out in an interacting region of a molecular cloud with an HII region. As a result, several 1,000 to…

Lightning discharge is a complicated process with relevant physical scales spanning many orders of magnitude. In an effort to understand the electrodynamics of lightning and connect physical properties of the channel to observed behavior,…

Space Physics · Physics 2016-05-31 B. E. Carlson , C. Liang , P. Bitzer , H. Christian

In this contribution I summarize our current knowledge of the nature and significance of starburst-driven galactic winds (``superwinds''). Superwinds are complex multiphase outflows of cool, warm, and hot gas, dust, and magnetized…

Astrophysics · Physics 2007-05-23 Timothy M. Heckman

We report the observation results of the hard radiation flashes which accompanied the lightning discharges above the mountains of Northern Tien Shan. Time series of the counting rate intensity, numerical estimations of absolute flux, and…

Sunquakes are one of the more distinct secondary phenomena related to solar flares, where energy deposition in the lower layers of the Sun's atmosphere excites acoustic waves easily visible in Helioseismic and Magnetic Imager (HMI)…

Solar and Stellar Astrophysics · Physics 2021-02-04 John T. Stefan , Alexander G. Kosovichev

Observations and models suggest that the conditions to develop lightning may be present in cloud-forming extrasolar planetary and brown dwarf atmospheres. Whether lightning on these objects is similar to or very different from what is known…

Earth and Planetary Astrophysics · Physics 2021-06-15 G. Hodosán , Ch. Helling , I. Vorgul

Aerosol interactions with clouds represent a significant uncertainty in our understanding of the Earth system. Deep convective clouds may respond to aerosol perturbations in several ways that have proven difficult to elucidate with…

Lightning induced radio emission has been observed on Solar system planets. There have been many attempts to observe exoplanets in the radio wavelength, however, no unequivocal detection has been reported. Lecavelier des Etangs et al.…

Earth and Planetary Astrophysics · Physics 2016-07-06 Gabriella Hodosán , Paul B. Rimmer , Christiane Helling

Relativistic, charged particles present in extensive air showers lead to a coherent emission of radio pulses which are measured to identify the shower initiating high-energy cosmic rays. Especially during thunderstorms, there are additional…