ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 2, pp. 197-205

Comparative analysis of total electron content disturbances over nine tropical cyclones

A.S. Polyakova , N.P. Perevalova 
Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences
Based on two-frequency GPS receivers data the comparative analysis of Total Electron Content (TEC) disturbances over nine different power tropical cyclones (TC) was carry out. It is shown, that an increase in TEC oscillations intensity with periods characterized for medium- and large-scale internal atmospheric waves (IAW) is registered in ionosphere over TC. It is revealed that ionosphere response on comparable power cyclones action is not the same. This fact may be explained by background atmospheric conditions that affect on IAW propagation. The TEC variation intensity is higher when several cyclones act in a region simultaneously. It is shown, that ionospheric response to tropical cyclones is more evident at low satellite elevation angles.
Keywords: ионосферные возмущения, GPS ПЭС, тропические циклоны, ionospheric disturbances, GPS TEC, tropical cyclones
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