Rapid evolution of energetic lightning strokes in Mediterranean winter storms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F25%3A00617491" target="_blank" >RIV/68378289:_____/25:00617491 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10500860

Výsledek na webu

<a href="https://www.nature.com/articles/s41612-025-00965-6" target="_blank" >https://www.nature.com/articles/s41612-025-00965-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41612-025-00965-6" target="_blank" >10.1038/s41612-025-00965-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rapid evolution of energetic lightning strokes in Mediterranean winter storms

Popis výsledku v původním jazyce

The occurrence of winter lightning concentrates in a few specific regions in the world, including the Mediterranean, where electromagnetic signatures of this interesting dangerous phenomenon have not yet been studied in detail. We investigate the initial stage of energetic negative cloud-to-ground winter lightning flashes in the West Mediterranean region using broadband magnetic field measurements (5 kHz–90 MHz) recorded in winter 2014/2015, which was unusually rich in global lightning activity. We found that the winter pre-stroke processes leading to the high peak current lightning (<−100 kA) lasted on average only 1.7 ms (in one case only 220 µs). Rapid evolution of energetic lightning indicates that leader initiation charge centers can be as low as 500 m above the ground. The measured distribution of pre-stroke pulse amplitudes and interpulse intervals can be used to model the charge structure in the lower thundercloud dipole and to derive the properties of in-cloud lightning channels.

Název v anglickém jazyce

Rapid evolution of energetic lightning strokes in Mediterranean winter storms

Popis výsledku anglicky

The occurrence of winter lightning concentrates in a few specific regions in the world, including the Mediterranean, where electromagnetic signatures of this interesting dangerous phenomenon have not yet been studied in detail. We investigate the initial stage of energetic negative cloud-to-ground winter lightning flashes in the West Mediterranean region using broadband magnetic field measurements (5 kHz–90 MHz) recorded in winter 2014/2015, which was unusually rich in global lightning activity. We found that the winter pre-stroke processes leading to the high peak current lightning (<−100 kA) lasted on average only 1.7 ms (in one case only 220 µs). Rapid evolution of energetic lightning indicates that leader initiation charge centers can be as low as 500 m above the ground. The measured distribution of pre-stroke pulse amplitudes and interpulse intervals can be used to model the charge structure in the lower thundercloud dipole and to derive the properties of in-cloud lightning channels.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

npj Climate and Atmospheric Science

ISSN

2397-3722

e-ISSN

2397-3722

Svazek periodika

8

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

71

Kód UT WoS článku

001432671300001

EID výsledku v databázi Scopus

2-s2.0-85218912095