Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver
A new method of determining the anisotropy parameters of small-scale irregularities in the ionospheric F region is presented and experimental results are shown. The method is based on observations of amplitude fluctuations of radio waves transmitted by satellites flying above the F region. In pr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
1999-04-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/17/508/1999/angeo-17-508-1999.pdf |
| _version_ | 1818615187225182208 |
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| author | E. D. Tereshchenko B. Z. Khudukon M. O. Kozlova T. Nygrén |
| author_facet | E. D. Tereshchenko B. Z. Khudukon M. O. Kozlova T. Nygrén |
| author_sort | E. D. Tereshchenko |
| collection | DOAJ |
| description | A new method of determining the anisotropy
parameters of small-scale irregularities in the ionospheric F region is
presented and experimental results are shown. The method is based on
observations of amplitude fluctuations of radio waves transmitted by satellites
flying above the F region. In practice, Russian navigational satellites are used
and both the amplitude and the phase of the received signal is measured on the
ground level. The method determines both the field-aligned anisotropy and the
field-perpendicular anisotropy and orientation of the spatial spectrum of the
irregularities, assuming that the contours of constant power have an elliptic
shape. A possibility of applying the method to amplitude tomography is also
discussed. Using a chain of receivers on the ground level, one could locate the
regions of small-scale irregularities as well as determine their relative
intensities. Then the large-scale background structures could be mapped
simultaneously by means of ordinary ray tomography using the phase observations,
and therefore the relations of small-scale and large-scale structures could be
investigated.<br><br><b>Key words.</b> Ionosphere (auroral ionosphere; ionospheric
irregularities; instruments and techniques) |
| first_indexed | 2024-12-16T16:29:55Z |
| format | Article |
| id | doaj.art-d54c89902d7f4c20b99ea8195608a2df |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-12-16T16:29:55Z |
| publishDate | 1999-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-d54c89902d7f4c20b99ea8195608a2df2022-12-21T22:24:38ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761999-04-011750851810.1007/s00585-999-0508-4Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiverE. D. Tereshchenko0B. Z. Khudukon1M. O. Kozlova2T. Nygrén3Polar Geophysical Institute, 15 Khalturina, 183010 Murmansk, RussiaPolar Geophysical Institute, 15 Khalturina, 183010 Murmansk, RussiaPolar Geophysical Institute, 15 Khalturina, 183010 Murmansk, RussiaDepartment of Physical Sciences, University of Oulu, FIN-90570 Oulu, FinlandA new method of determining the anisotropy parameters of small-scale irregularities in the ionospheric F region is presented and experimental results are shown. The method is based on observations of amplitude fluctuations of radio waves transmitted by satellites flying above the F region. In practice, Russian navigational satellites are used and both the amplitude and the phase of the received signal is measured on the ground level. The method determines both the field-aligned anisotropy and the field-perpendicular anisotropy and orientation of the spatial spectrum of the irregularities, assuming that the contours of constant power have an elliptic shape. A possibility of applying the method to amplitude tomography is also discussed. Using a chain of receivers on the ground level, one could locate the regions of small-scale irregularities as well as determine their relative intensities. Then the large-scale background structures could be mapped simultaneously by means of ordinary ray tomography using the phase observations, and therefore the relations of small-scale and large-scale structures could be investigated.<br><br><b>Key words.</b> Ionosphere (auroral ionosphere; ionospheric irregularities; instruments and techniques)https://www.ann-geophys.net/17/508/1999/angeo-17-508-1999.pdf |
| spellingShingle | E. D. Tereshchenko B. Z. Khudukon M. O. Kozlova T. Nygrén Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver Annales Geophysicae |
| title | Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| title_full | Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| title_fullStr | Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| title_full_unstemmed | Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| title_short | Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| title_sort | anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| url | https://www.ann-geophys.net/17/508/1999/angeo-17-508-1999.pdf |
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