| Autor: |
Boyde Ben, Wood Alan, Dorrian Gareth, Fallows Richard A., Themens David, Mielich Jens, Elvidge Sean, Mevius Maaijke, Zucca Pietro, Dabrowski Bartosz, Krankowski Andrzej, Vocks Christian, Bisi Mario |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Space Weather and Space Climate, Vol 12, p 34 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2115-7251 |
| DOI: |
10.1051/swsc/2022030 |
| Popis: |
Observations made using the LOw-Frequency ARray (LOFAR) between 10:15 and 11:48 UT on the 15th of September 2018 over a bandwidth of approximately 25–65 MHz contain discrete pseudo-periodic features of ionospheric origin. These features occur within a period of approximately 10 min and collectively last roughly an hour. They are strongly frequency dependent, broadening significantly in time towards the lower frequencies, and show an overlaid pattern of diffraction fringes. By modelling the ionosphere as a thin phase screen containing a wave-like disturbance, we are able to replicate the observations, suggesting that they are associated with small-scale travelling ionospheric disturbances (TIDs). This modelling indicates that the features observed here require a compact radio source at a low elevation and that the TID or TIDs in question have a wavelength |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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