A statistical analysis on the relationship between thunderstorms and the sporadic E Layer over Rome

V. Barta, C. Scotto, M. Pietrella, V. Sgrigna, L. Conti, G. Sátori

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Meteorological processes (cold fronts, mesoscale convective complexes, thunderstorms) in the troposphere can generate upward propagating waves in the neutral atmosphere affecting the behaviour of the ionosphere. One type of these waves are the internal atmospheric gravity waves (AGWs) which are often generated by thunderstorms. Davis & Johnson (2005) found in low pressure systems that a localized intensification of the sporadic E layer (Es) can be attributed to lightnings. To confirm this result, we have performed two different statistical analysis using the time series of the critical frequency (foEs), the virtual height of the sporadic E layer (h'Es), and meteorological observations (lightnings, Infrared maps) over the ionospheric station of Rome (41.9° N, 12.5° E). In the first statistical analysis, we separated the days of 2009 into two groups: stormy days and fair-weather days, then we studied the occurrence and the properties of the Es separately for the two different groups. No significant differences have been found. In the second case, a superposed epoch analysis (SEA) was used to study the behaviour of the critical frequency and virtual height 100 hours before and after the lightnings. The SEA shows a statistically significant decrease in the critical frequency after the time of the lightnings, which indicates a sudden decrease in the electron density of the sporadic E layer associated with lightnings.

Original languageEnglish
Pages (from-to)968-971
Number of pages4
JournalAstronomische Nachrichten
Volume334
Issue number9
DOIs
Publication statusPublished - Nov 2013

Fingerprint

sporadic E layer
thunderstorms
lightning
thunderstorm
statistical analysis
critical frequencies
time measurement
cold fronts
neutral atmospheres
low pressure system
atmospheric wave
cold front
gravity waves
troposphere
weather
gravity wave
electron density
ionospherics
ionospheres
ionosphere

Keywords

  • Earth
  • Methods: data analysis
  • Planets and satellites: atmospheres
  • Waves

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

A statistical analysis on the relationship between thunderstorms and the sporadic E Layer over Rome. / Barta, V.; Scotto, C.; Pietrella, M.; Sgrigna, V.; Conti, L.; Sátori, G.

In: Astronomische Nachrichten, Vol. 334, No. 9, 11.2013, p. 968-971.

Research output: Contribution to journalArticle

Barta, V. ; Scotto, C. ; Pietrella, M. ; Sgrigna, V. ; Conti, L. ; Sátori, G. / A statistical analysis on the relationship between thunderstorms and the sporadic E Layer over Rome. In: Astronomische Nachrichten. 2013 ; Vol. 334, No. 9. pp. 968-971.
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