Subionospheric propagation and peak currents of preliminary breakdown pulses before negative cloud-to-ground lightning discharges

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F16%3A00455897" target="_blank" >RIV/68378289:_____/16:00455897 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/16:10334120

Result on the web

<a href="http://dx.doi.org/10.1002/2015GL067364" target="_blank" >http://dx.doi.org/10.1002/2015GL067364</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/2015GL067364" target="_blank" >10.1002/2015GL067364</a>

Result language

angličtina

Original language name

Subionospheric propagation and peak currents of preliminary breakdown pulses before negative cloud-to-ground lightning discharges

Original language description

We analyze broadband electromagnetic measurements of pulse sequences occurring prior to first return strokes of negative cloud-to-ground lightning flashes. Signals generated by lightning discharges were recorded close to the thunderstorm by a magnetic field receiver and traveled up to 600 km to three distant electric field receivers. We found that amplitudes of observed preliminary breakdown pulses, as well as amplitudes of the corresponding return strokes, are attenuated approximately by 2 dB/100 km when propagating in the Earth-ionosphere waveguide over mountainous terrain. Propagation simulations show that there is a significant contribution of the sky wave signals in the waveforms observed beyond 500 km from their source. The estimated peak currents of the largest preliminary breakdown pulses reach over 60 kA. Such current pulses propagating through in-cloud lightning leader channels in a strong electric field may be able to initiate terrestrial gamma ray flashes.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

—

Project

<a href="/en/project/GA14-31899S" target="_blank" >GA14-31899S: Satellite, balloon and ground-based measurements of electromagnetic manifestations of thunderstorms</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

—

Volume of the periodical

43

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

1382-1391

UT code for WoS article

000372056600054

EID of the result in the Scopus database

2-s2.0-84975763724