Open AccessOn the origin of medium-period ionospheric waves and their possible modelling: a short review
Author(s) -
P. Dominici,
Ljiljana R. Cander,
B. Zolesi
Publication year - 1997
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-3855
Subject(s) - ionosphere , gravity wave , gravitational wave , period (music) , geophysics , geology , ionospheric absorption , acoustic wave , physics , meteorology , atmospheric sciences , acoustics , astrophysics
This article introduces the concept of ionospheric waves with periods from about 15 min to about 4 h as one of the acoustic-gravity wave-induced phenomena. The existence of these medium-period ionospheric waves in the various ionospheric layers is supported by the results of a data analysis which has shown remarkable characteristics in occurrence and direction of the waves with a period not longer than about 2 h. The explanation offered is based on the assumption that a unique phenomenon capable to launch acoustic-gravity waves related to such ionospheric waves is the sudden change in physical conditions of the atmosphere due to the passage of the solar terminator