Some effects in the geospace plasma during the partial Solar eclipse of 1 august 2008 above Kharkov. 2. Calculation results and discussion

Heading: 
Space and Atmospheric Physics
1Lyashenko, MV, 2Chernogor, LF
1Institute of Ionosphere of the NAS of Ukraine and MES of Ukraine, Kharkiv, Ukraine
2V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
Kosm. nauka tehnol. 2009, 15 ;(4):03-11
https://doi.org/10.15407/knit2009.04.003
Publication Language: Russian
Abstract: 
We present our theoretical calculation results for dynamic processes parameters in geospace plasma during partial (phase is about 0.42) solar eclipse of 1 August 2008. It is shown that the neutral atmosphere temperature decreased by 17‒40 K in the height range from 250 to 350 km. The densities of the total plasma flux and flux due to ambipolal diffusion increased in the height range from 210 to 580 km. In the ionosphere an intensification of the neutral wind velocity took place in the height range between 210 and 410 km. The energy delivered to the electron gas decreased approximately by 12 % at heights from 210 to 290 km and the heat flux density was diminished by 9‒16 % in the height range from 240 to 340 km. We compared the ionospheric plasma parameter variations during the eclipses of 11 August 1999, 31 May 2003, 3 October 2005, 29 March 2006 and 1 August 2008.
Keywords: ambipolal diffusion, geospace plasma, ionosphere
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