Change search
ReferencesLink to record
Permanent link

Direct link
Spatial correlation between lightning strikes and whistler observations from Tihany, Hungary
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.
Show others and affiliations
2009 (English)In: South African Journal of Science, ISSN 0038-2353, Vol. 105, no 5-6, 234-237 p.Article in journal (Refereed) Published
Abstract [en]

A whistler is a very low frequency (VLF) phenomenon that acquires its characteristics from dispersive propagation in the magnetosphere. Whistlers are derived from the intense VLF radiation produced in lightning strikes, which can travel great distances within the Earth-ionosphere waveguide (EIWG) before penetrating the ionosphere, and exciting a duct. Field-aligned ducts of enhanced plasma density guide the propagation from one hemisphere to the other. The location of the duct, relative to the strike that causes the whistler, is unknown. Whistler time series from Tihany, Hungary, have been cross-correlated with lightning data obtained from the World Wide Lightning Location Network (WWLLN). The results show that whistlers observed at Tihany originate mainly from lightning strikes in an area with a radius of approximately 1 000 km surrounding the magnetic conjugate point in the Indian Ocean just east of East London, South Africa. A clear diurnal distinction was seen in that the correlation is maximised when the whistler station and the source region are in darkness. This is believed to relate to the diurnal variation of the ionosphere, which becomes more transparent to VLF waves at night.

Place, publisher, year, edition, pages
2009. Vol. 105, no 5-6, 234-237 p.
Keyword [en]
correlation, lightning, magnetosphere, space physics, whistler waves, location accuracy, network
URN: urn:nbn:se:kth:diva-18659ISI: 000268687300017ScopusID: 2-s2.0-68849121213OAI: diva2:336706
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Blomberg, Lars G.
By organisation
Space and Plasma Physics
In the same journal
South African Journal of Science

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link