Influence of January 2009 stratospheric warming on HF radio wave propagation in the low-latitude ionosphere
| Autor: | V. E. Zakharov, D. S. Kotova, Fedor Bessarab, Vladimir V. Klimenko, Y.N. Korenkov, Maksim Klimenko |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Atmospheric Science
Low latitude 010504 meteorology & atmospheric sciences Wave propagation Sudden stratospheric warming Atmospheric sciences High frequency 01 natural sciences Hf radio communication Geophysics Space and Planetary Science Physics::Space Physics 0103 physical sciences Environmental science Ionosphere 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Solnechno-Zemnaya Fizika. 2:63-75 |
| ISSN: | 2412-4737 |
| DOI: | 10.12737/21880 |
| Popis: | For the first time, we consider the effect 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 reproduce 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 use the numerical model of radio wave propagation based on geometrical optics approximation. It is shown that a sudden stratospheric warming leads to radio signal attenuation in the day-time equatorial ionosphere. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|