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The editorial board of the "MSTU Vestnik" journal supports the «Open Access» policy which enables users to have free and unlimited access to scientific articles (to read, download, copy, distribute) in case the author is indicated when further quoted.

The academic periodical "Vestnik of MSTU" is available under the license Creative Commons «Attribution» (Attribution) 3.0 Unported (CC BY 3.0).

Knyazeva M.A., Zubova Yu.V., Namgaladze A.A.

Numerical modelling of the Weddell Sea Anomaly in behaviour of the ionospheric F2-region

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Abstract. The morphology and mechanism of the Weddell Sea Anomaly (WSA) forming has been investigated by using the global numerical model of the Upper Atmosphere Model and empirical model of the ionosphere IRI-2001. It has been shown that both models reproduce WSA in the summer southern hemisphere in longitudinal sector 255-315?E. It has been found that the analogous WSA longitudinal variation of the electron density takes place in the summer northern hemisphere in longitudinal sector 75-135?E. It has been shown that both phenomena are caused by the non-coincidence of the geomagnetic and geodetic axes which produces the difference in vertical velocities of the ion transfer by the thermospheric wind action in the western and eastern longitudinal sectors.

Keywords: midlatitude F2-layer of the ionosphere, thermospheric circulation, thermosphere-ionosphere interaction, numerical modeling

Printed reference: Knyazeva M.A., Zubova Yu.V., Namgaladze A.A. Numerical modelling of the Weddell Sea Anomaly in behaviour of the ionospheric F2-region // Vestnik of MSTU. 2010. V. 13, No 4. P. -.

Electronic reference: Knyazeva M.A., Zubova Yu.V., Namgaladze A.A. Numerical modelling of the Weddell Sea Anomaly in behaviour of the ionospheric F2-region // Vestnik of MSTU. 2010. V. 13, No 4. P. -. URL: http://vestnik.mstu.edu.ru/v13_5_n42/articles/41_knyazeva.pdf.

(In Russian, p.10, fig. 6, ref 32, Adobe PDF)