Statistical study of TIDs using HF radar ground backscatter data and chirp sounding network MUF data
Abstract
We present statistical characteristics of traveling ionospheric disturbances (TIDs) revealed from the data of ground mid-latitude high frequency (HF) facilities that cover a wide longitudinal sector. Firstly, we analyzed an extensive dataset collected by SuperDARN Hokkaido HF radar since the late 2006 until 2014. A technique based on the cross-correlation analysis of minimal group range variations was used. We discuss diurnal and seasonal dependencies of predominant TIDs azimuth and apparent horizontal velocity as well as its solar and geomagnetic activity dependence. Further, we compare these statistical results with the same obtained using the first Russian SuperDARN Ekaterinburg HF radar data during 2013. In addition, we analyzed maximum usable frequency (MUF) series obtained by Russian oblique chirp sounding network. The network includes transmitters in Magadan, Norilsk, Khabarovsk and receiver in Tory (Irkutsk) and allow us to reveal large-scale TIDs characteristics in 2010-2011. This work was done under financial support of the Russian Foundation for Basic Research (grants 14-05-00259-a, 12-05-00865-a and 14-05-00588-a).
- Publication:
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40th COSPAR Scientific Assembly
- Pub Date:
- 2014
- Bibcode:
- 2014cosp...40E2353O