The possibility of estimating the height of the ionospheric inhomogeneities based on TEC variations maps obtained from dense GPS network - Publikacja - MOST Wiedzy

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The possibility of estimating the height of the ionospheric inhomogeneities based on TEC variations maps obtained from dense GPS network

Abstrakt

A state of the ionosphere can be effectively studied using electromagnetic signals received from global navigation satellite systems (GNSS). Utilization of the dual frequency observations allows estimating values of the total electron content (TEC). They can be used for a number of scientific studies such as detection and monitoring of traveling ionospheric disturbances or plasma bubbles. Moreover, maps of TEC variations allow to classify ionospheric heterogeneities and to evaluate their parameters. However, most of the research describes ionospheric parameters only in 2D space and time. In this paper, we focus on the determination of the height of the ionospheric inhomogeneities. We used a dense network of GPS receivers to obtain the sequences of TEC variation maps for different heights of the ionospheric layer. For each satellite observed above 70 deg, we constructed separate sets of maps. For each ionospheric height, the crosscorrelation function between maps corresponding to different satellites was calculated. The biggest cross-correlation coefficient value determines the height of the ionospheric irregularities. This paper describes the methodology and the results obtained for a geomagnetic storm on St. Patrick’s Day in March 2013. We have found that in quiet geomagnetic conditions the ionospheric irregularities are localized predominantly within the interval 180–220 km close to the maximum of the ionospheric F2 layer. In disturbed conditions, the height of their localization was increased up to several hundreds of kilometers. These estimations correspond to the changes in the slab thickness of the ionosphere.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
ADVANCES IN SPACE RESEARCH nr 64, strony 2002 - 2011,
ISSN: 0273-1177
Język:
angielski
Rok wydania:
2019
Opis bibliograficzny:
Nykiel G., Zanimonskiy Y., Koloskov A., Figurski M.: The possibility of estimating the height of the ionospheric inhomogeneities based on TEC variations maps obtained from dense GPS network// ADVANCES IN SPACE RESEARCH. -Vol. 64, iss. 10 (2019), s.2002-2011
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.asr.2019.06.008
Weryfikacja:
Politechnika Gdańska

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