Post-Return Stroke VHF Electromagnetic Activity in North-Western Mediterranean CG Flashes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F24%3A00598998" target="_blank" >RIV/68378289:_____/24:00598998 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10492264
Result on the web
<a href="https://ieeexplore.ieee.org/abstract/document/10584766" target="_blank" >https://ieeexplore.ieee.org/abstract/document/10584766</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.46620/URSIATRASC24/PBGZ6353" target="_blank" >10.46620/URSIATRASC24/PBGZ6353</a>

Result language
angličtina
Original language name
Post-Return Stroke VHF Electromagnetic Activity in North-Western Mediterranean CG Flashes
Original language description
We investigate the electromagnetic activity following the first return stroke (RS), using data from the SLAVIA (Shielded Loop Antenna with a Versatile Integrated Amplifier) sensor and the lightning mapping array SAETTA (Suivi de l'Activite Electrique Tridimensionnelle Totale de l'Atmosphere). From data collected between September and December 2015 in the north-western Mediterranean region, we selected 69 negative cloud-to-ground (-CG) and 29 positive cloud-to-ground (+CG) flashes. Within SAETTA data, we observe a reduction in counts and power of VHF radiation sources immediately after the RS pulse in 62CG flashes. Contrastingly, all examined +CG flashes exhibit a rapid increase in the counts and power of VHF radiation sources immediately after the RS. We offer a hypothesis of a step-like propagation of a negative leader starting at the top end of the lightning channel inside the thundercloud, emitting electromagnetic radiation across a broad frequency spectrum.
Czech name
—
Czech description
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2024 4TH URSI ATLANTIC RADIO SCIENCE MEETING, AT-RASC 2024
ISBN
979-8-3503-6025-7
ISSN
—
e-ISSN
—
Number of pages
4
Pages from-to
200952
Publisher name
IEEE
Place of publication
USA
Event location
Meloneras
Event date
May 19, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001269451500180

Similar results(10)