UV Transient Atmospheric Events Observed Far From Thunderstorms by the Vernov Satellite

Климов, П. А.; Kaznacheeva, M.; Khrenov, B. A.; Garipov, G. K.; Bogomolov, V. V.; Panasyuk, M. I.; Свертилов, С. И.; Cremonini, R.

doi:10.1109/lgrs.2018.2830656

Cited by 15 publications

(6 citation statements)

References 32 publications

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“…As was earlier mentioned by (Garipov et al 2013), some events detected on-board Tatiana-2 have occurred not above clouds, and rather far from the thunderstorm regions. The recent analyses of such events by instruments on-board Vernov satellite was made by Klimov et al 2018, where these events were compared with the data of ground-based lightning location networks and with satellite data of the cloud coverage, and as a result of this analysis, a new class of far-from-thunderstorm events was suggested. But no hypotheses of their nature was put forward, or even suggested.…”

Section: Results Of Tle Observations In Space Experiments Of Moscow Smentioning

confidence: 99%

“…Physical mechanisms leading to TGFs and TLEs at optical and gamma-ray ranges can be different. The Universitetsky-Tatiana, Tatiana-2, and Vernov mission data demonstrated cogently the appearance of TLEs types, which are not associated with thunderstorm activity (Sadovnichy et al (2011); Sadovnichy et al (2007); Klimov et al (2018)). Below we present the results of TLE observations during these experiments and discuss the problem of TLE and TGF study during modern space missions.…”

Section: The Problem Of Tle and Tgf Study In Modern Space Missionsmentioning

confidence: 93%

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Universat-SOCRAT multi-satellite project to study TLEs and TGFs

Panasyuk

Климов

Свертилов

et al. 2019

Prog Earth Planet Sci

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We present concept of a new multi-satellite Universat-SOCRAT project aimed to study transient phenomena in the upper atmosphere such as transient luminous events (TLEs) and terrestrial gamma-ray flashes (TGFs). It is a new space project of Lomonosov Moscow State University based on the use of a few satellites in the near-Earth orbit for real-time monitoring of radiation environment, natural (asteroids, meteoroids) and artificial (space debris) potentially dangerous objects, electromagnetic transients including cosmic gamma-ray bursts, terrestrial gamma-ray flashes, and optical and ultraviolet bursts in the Earth's atmosphere. Study of TLEs and TGFs remains an important and demanding task despite of a multitude of recently acquired data for these phenomena. This might be explained by the absence of comprehensive theoretical understanding of physical nature of high-energy processes in the Earth's atmosphere. Multi-wavelength synchronous observations with moderate accuracy of localization of TGF and TLE events are necessary to gain an insight of physics governing these high-energy processes in the Earth's atmosphere. In the article, we present results of TLE observations in space experiments of Moscow State University and discuss advanced instruments for optical observations of TLEs, as well as gamma-ray burst monitor and tracking gamma spectrometer for TGFs observations.

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Section: Results Of Tle Observations In Space Experiments Of Moscow Smentioning

confidence: 99%

Section: The Problem Of Tle and Tgf Study In Modern Space Missionsmentioning

confidence: 93%

Universat-SOCRAT multi-satellite project to study TLEs and TGFs

Panasyuk

Климов

Свертилов

et al. 2019

Prog Earth Planet Sci

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“…Elves (Emission of Light and Very low frequency perturbations due to Electromagnetic pulse Sources) were predicted (Inan et al 1991) before observation (Boeck et al 1992;Fukunishi et al 1996), and last a few hundred µs at most. The global coverage of its measurements allows Mini-EUSO to observe these events and study the so-called far-fromthunderstorm transient atmospheric events, observed previously in a couple of experiments (Klimov et al 2018;Aab et al 2020b). Furthermore, it will be possible to make joint observations with other detectors on board the ISS such as Altea-Lidal (Rizzo et al 2019) and ASIM (Østgaard et al 2019).…”

Section: Scientific Objectivesmentioning

confidence: 92%

Mini-EUSO mission to study Earth UV emissions on board the ISS

Bacholle,

Barrillon,

Battisti

et al. 2020

Preprint

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“…The criterion of 60 km was chosen to exclude the use of clusters which were made up of several obvious subclusters, but which HDBSCAN failed to identify, and to exclude very dispersed clusters which were given questionable cluster assignments by HDBSCAN (see Figure [right] for example). Typical thunderstorm diameters can reach up to roughly 100 km with convection regions reaching up to a few tens of kilometers in diameter (Houze, ; Klimov et al, ). This, considered with WWLLN's location accuracy, makes the 60‐km threshold a conservative choice.…”

Section: Methodsmentioning

confidence: 99%

Evidence for Extended Charging Periods Prior to Terrestrial Gamma Ray Flashes

Larkey

Sample

Smith

et al. 2019

Geophysical Research Letters

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We present an analysis of lightning interflash intervals in 219 terrestrial gamma ray flash (TGF) producing thunderstorms. Clustering was used to identify groups of lightning sferics, interpreted as individual thunderstorms, in combined World Wide Lightning Location Network and Earth Networks Total Lightning Network data. In these individual groups of sferics, analysis was done on the lightning flash frequency within ±10 min of the Fermi recorded TGF. We find that typical interflash intervals immediately prior to TGFs are 24% longer than mean interflash intervals in their individual producing storms, while the interflash intervals immediately following the TGFs are typically 8% shorter than normal. The significance of these results, tested using a numerical bootstrap method, was found to be highly significant for the pre‐TGF interval. These results could imply that a stronger electric field is necessary for the production of TGFs and may help to explain why some lightning strikes produce TGFs while others do not.

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UV Transient Atmospheric Events Observed Far From Thunderstorms by the Vernov Satellite

Cited by 15 publications

References 32 publications

Universat-SOCRAT multi-satellite project to study TLEs and TGFs

Universat-SOCRAT multi-satellite project to study TLEs and TGFs

Mini-EUSO mission to study Earth UV emissions on board the ISS

Evidence for Extended Charging Periods Prior to Terrestrial Gamma Ray Flashes

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