Variation of the ionospheric scintillation index with elevation angle of the transmitter
We have analyzed GPS data from 2007–2011 to determine the nature of variation of scintillation index with elevation of the direction of propagation at an observing point Warsaw, Poland, and Hornsund, Svalbard. To compare with the theory, the intensity scintillation index is simulated as a function o...
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Language: | English |
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2013
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ftunivbathcris:oai:purehost.bath.ac.uk:publications/df6caaad-2ee5-4ad1-af6c-7a1aed0440ca 2024-04-28T08:23:11+00:00 Variation of the ionospheric scintillation index with elevation angle of the transmitter Priyadarshi, Shishir Wernik, Andrzej W. 2013-10-31 https://researchportal.bath.ac.uk/en/publications/df6caaad-2ee5-4ad1-af6c-7a1aed0440ca https://doi.org/10.2478/s11600-013-0123-3 eng eng https://researchportal.bath.ac.uk/en/publications/df6caaad-2ee5-4ad1-af6c-7a1aed0440ca info:eu-repo/semantics/closedAccess Priyadarshi , S & Wernik , A W 2013 , ' Variation of the ionospheric scintillation index with elevation angle of the transmitter ' , Acta Geophysica , vol. 61 , pp. 1279-1288 . https://doi.org/10.2478/s11600-013-0123-3 article 2013 ftunivbathcris https://doi.org/10.2478/s11600-013-0123-3 2024-04-09T02:50:08Z We have analyzed GPS data from 2007–2011 to determine the nature of variation of scintillation index with elevation of the direction of propagation at an observing point Warsaw, Poland, and Hornsund, Svalbard. To compare with the theory, the intensity scintillation index is simulated as a function of elevation angle, azimuth, magnetic field inclination, and shape of irregularities, using the phase screen model of scintillation as formulated by Rino (1979). Data analysis has been done for the seasonal as well as geomagnetic activity dependence of ionospheric scintillation. Scintillation index is a power-law function of the cosecant of the elevation angle. Results show that the power law strongly depends on the form of irregularities, being larger than in isotropic case for irregularities with dimension along the magnetic field direction smaller than those across the magnetic field. The present work also shows the need to use experimentally derived dependence on elevation. Article in Journal/Newspaper Hornsund Svalbard University of Bath's research portal Acta Geophysica 61 5 1279 1288 |
institution |
Open Polar |
collection |
University of Bath's research portal |
op_collection_id |
ftunivbathcris |
language |
English |
description |
We have analyzed GPS data from 2007–2011 to determine the nature of variation of scintillation index with elevation of the direction of propagation at an observing point Warsaw, Poland, and Hornsund, Svalbard. To compare with the theory, the intensity scintillation index is simulated as a function of elevation angle, azimuth, magnetic field inclination, and shape of irregularities, using the phase screen model of scintillation as formulated by Rino (1979). Data analysis has been done for the seasonal as well as geomagnetic activity dependence of ionospheric scintillation. Scintillation index is a power-law function of the cosecant of the elevation angle. Results show that the power law strongly depends on the form of irregularities, being larger than in isotropic case for irregularities with dimension along the magnetic field direction smaller than those across the magnetic field. The present work also shows the need to use experimentally derived dependence on elevation. |
format |
Article in Journal/Newspaper |
author |
Priyadarshi, Shishir Wernik, Andrzej W. |
spellingShingle |
Priyadarshi, Shishir Wernik, Andrzej W. Variation of the ionospheric scintillation index with elevation angle of the transmitter |
author_facet |
Priyadarshi, Shishir Wernik, Andrzej W. |
author_sort |
Priyadarshi, Shishir |
title |
Variation of the ionospheric scintillation index with elevation angle of the transmitter |
title_short |
Variation of the ionospheric scintillation index with elevation angle of the transmitter |
title_full |
Variation of the ionospheric scintillation index with elevation angle of the transmitter |
title_fullStr |
Variation of the ionospheric scintillation index with elevation angle of the transmitter |
title_full_unstemmed |
Variation of the ionospheric scintillation index with elevation angle of the transmitter |
title_sort |
variation of the ionospheric scintillation index with elevation angle of the transmitter |
publishDate |
2013 |
url |
https://researchportal.bath.ac.uk/en/publications/df6caaad-2ee5-4ad1-af6c-7a1aed0440ca https://doi.org/10.2478/s11600-013-0123-3 |
genre |
Hornsund Svalbard |
genre_facet |
Hornsund Svalbard |
op_source |
Priyadarshi , S & Wernik , A W 2013 , ' Variation of the ionospheric scintillation index with elevation angle of the transmitter ' , Acta Geophysica , vol. 61 , pp. 1279-1288 . https://doi.org/10.2478/s11600-013-0123-3 |
op_relation |
https://researchportal.bath.ac.uk/en/publications/df6caaad-2ee5-4ad1-af6c-7a1aed0440ca |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.2478/s11600-013-0123-3 |
container_title |
Acta Geophysica |
container_volume |
61 |
container_issue |
5 |
container_start_page |
1279 |
op_container_end_page |
1288 |
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1797584309986525184 |