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Radio Physics and Radio Astronomy

ISSN Imprimer: 2152-274X
ISSN En ligne: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v3.i3.60
pages 233-240

BACKGROUND VARIATIONS IN THE TOTAL ELECTRON CONTENT OF THE IONOSPHERE OVER THE ANTARCTIC PENINSULA

A. A. Sopin
Institute of Radio Astronomy, National Academy of Sciences of Ukraine
Y. M. Zanimonskiy
Institute of Radio Astronomy, National Academy of Sciences of Ukraine, 4, Chervonopraporna St., Kharkiv, 61002, Ukraine
V. N. Lisachenko
Institute of Radio Astronomy, National Academy of Sciences of Ukraine, 4, Chervonopraporna St., Kharkiv, 61002, Ukraine
Yu. M. Yampolski
Institute of Radio Astronomy, National Academy of Sciences of Ukraine

RÉSUMÉ

Results are presented of investigated variations in the Total Electron Content (TEC) of the ionosphere over the Antarctic Peninsula using data from a local network of permanent GNSS stations for 450 days in 2009 and 2010. Diurnal dependences of the velocities and motion directions of ionospheric inhomogeneities are analyzed for different seasons. In the daytime, the inhomogeneities move predominantly north-eastward at velocities 300 to 500 m/s for all seasons. During the evening hours in autumn and winter the north-western motion direction is prevailing, while in spring and summer the south-western direction dominates. The nighttime ionospheric inhomogeneities are characterized by wider ranges of motion velocities and directions.


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