Ionospheric parameters variations observation during solar eclipses of 29 march 2006 and 01 august 2008. Preliminary results
Abstract
In this paper some results several of cooperative experiments are presented. Experiments were held during times of solar eclipses at 29 march 2006 and 01 august 2008. Solar eclipse of 29 march 2006 were observed by HF Doppler sounder "Spectr" and ionosonde "Cyclon" located in Kazan. The measuring equipment of "Spectr" is a system of closely spaced receivers using the HF Doppler technique. There were three measurement lines for "Spectr". In this experiment we use broadcasting HF-station signals, as test signals. First radioline was Jerusalem-Kazan (frequency 5,915 MHz, Radio KolIsrael), this line cross path of eclipse. Second radio line was Arkhangelsk -Kazan ("Radio of Russia ", frequency 6,160 MHz) and the third was Moscow-Kazan radioline on two frequencies (special radio station of exact time (RVM), frequencies 4,996 and 9,996 MHz). Cooperative complex experiment (KSU, ISTP SB RAS) was help during solar eclipse of 01 august 2008. The experiment was held from 27.07.08 to 08.08.08 at time of full solar eclipse. Receiving part (KSU) was situated in Kazan University (HF Doppler sounder "Spectr", CHIRP receiver) and transmitters (ISTP SB RAS) were placed in Irkutsk, Magadan, Norilsk. Impulse signals on two fixed frequencies (frequencies 10,99999 and 12,33333 MHz in day time, and 7,43333 and 8,33333 MHz in night) and CHRRP signals with division in time domain for were radiated from each transmitter. In addition radio lines Moscow -Kazan (RVM 4,996 MHz) and Archangelsk -Kazan (6,160 MHz) were observed. All radio lines from Siberia cross path of solar eclipse, additional lines is situated in eclipse shadow. Most interesting line is Irkutsk -Kazan, because center of radioline is situated near path of total eclipse. Radio line Irkutsk -Kazan was crossed path of solar eclipse, near Novosibirsk city, maximum phase crossing was in 10:41 UT. The ionosonde "Cyclon" was working in minute cycles during solar eclipse, maximum eclipse phase in Kazan was 0,69.
- Publication:
-
38th COSPAR Scientific Assembly
- Pub Date:
- 2010
- Bibcode:
- 2010cosp...38..999R