Open AccessInfluence of January 2009 stratospheric warming on HF radio wave propagation in the low-latitude ionosphere
Author(s) -
Daria Kotova,
Daria Kotova,
М. В. Клименко,
М. В. Клименко,
В. В. Клименко,
В. В. Клименко,
В. Е. Захаров,
В. Е. Захаров,
Ф. С. Бессараб,
Ф. С. Бессараб,
I.P. Korenkov,
Yu. N. Korenkov
Publication year - 2017
Publication title -
solar-terrestrial physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2500-0535
DOI - 10.12737/24275
Subject(s) - ionosphere , attenuation , radio propagation , daytime , sudden stratospheric warming , radio wave , thermosphere , atmospheric sciences , ionospheric absorption , environmental science , total electron content , radio signal , physics , meteorology , geophysics , stratosphere , radio frequency , tec , polar vortex , telecommunications , computer science , optics , quantum mechanics , astronomy
We have considered the influence of the January 23–27, 2009 sudden stratospheric warming (SSW) event on HF radio wave propagation in the equatorial ionosphere. This event took place during extremely low solar and geomagnetic activity. We use the simulation results obtained with the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) for simulating environmental changes during the SSW event. We both qualitatively and quantitatively reproduced total electron content disturbances obtained from global ground network receiver observations of GPS navigation satellite signals, by setting an additional electric potential and TIME-GCM model output at a height of 80 km. In order to study the influence of this SSW event on HF radio wave propagation and attenuation, we used the numerical model of radio wave propagation based on geometrical optics approximation. It is shown that the sudden stratospheric warming leads to radio signal attenuation and deterioration of radio communication in the daytime equatorial ionosphere.