Open AccessRadiation field spectra of long‐duration cloud flashes
Author(s) -
Ahmad Noor Azlinda,
Baharudin Z. A.,
Fernando M.,
Cooray V.
Publication year - 2014
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl2.537
Subject(s) - radiation , spectral line , range (aeronautics) , duration (music) , physics , electric field , electromagnetic spectrum , computational physics , astrophysics , environmental science , optics , astronomy , materials science , acoustics , composite material , quantum mechanics
The preliminary results of radiation electric fields produced by long‐duration cloud flashes have been Fourier analyzed to determine the frequency spectrum in the range of 10 kHz–10 MHz. The flashes were recorded within a distance of less than 20 km. The spectrum was normalized to 50 km distance and it shows a f −1 dependence within the entire frequency range.