| Autor: |
Cherniakov, S.M., Turyansky, V.A. |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| DOI: |
10.25702/ksc.2588-0039.2019.42.148-151 |
| Popis: |
For quiet geomagnetic conditions during solar terminator passages results of observations of amplitude variations of the partial reflection radar signals (the observatory Tumanny of the Polar Geophysical Institute, 69.0N, 35.7E) at the heights of the D-region of the ionosphere are given. Temporary variations of signal amplitudes which were reflected at the height of 75 km and their spectra were analyzed. It was found that the components of the time spectrum of the variations which correspond to resonant frequencies of the atmosphere (the acoustic cut-off and the Brunt-Väisälä ones) in certain cases were intensified. On the basis of the theory of acoustic-gravity waves and the empirical model of neutral structure and temperature of the atmosphere NRLMSISE-00identification of the experimental periods corresponding to the atmospheric resonances has been done and calculation of neutral temperature at the heights of the mesosphere have been carried out. The values of the calculated temperature from experimental data showed satisfactory consent with data of other independent observations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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