Search Results - "Tassev, Y."

Ionization effect of nuclei with solar and galactic origin in the Earth atmosphere during GLE 69 on 20 January 2005 by Mishev, A.L., Velinov, P.I.Y., Mateev, L., Tassev, Y.

“…The ground level enhancement 69 on January 20, 2005 is the second largest event in the history of cosmic ray measurements. Solar protons cause an excess of…”
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Ionization effect of solar protons in the Earth atmosphere – Case study of the 20 January 2005 SEP event by Mishev, A.L., Velinov, P.I.Y., Mateev, L., Tassev, Y.

“…The cosmic ray ground level enhancement on January 20, 2005 is among the largest recorded events in the history of cosmic ray measurements. The solar protons…”
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On the adjust of minor constituents density in middle atmosphere during solar proton events by Tassev, Y.K.

“…Profiles of O 3 partial pressure and of other minor atmospheric constituents ( NO, NO 2, HCL, HF and H 2O ), observed in the middle atmosphere during Solar…”
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Variations in ozone profiles during the period of solar proton events from October 19–31,1989 by Tassev, Y.K., Yanev, T.K., Velinov, P.I.Y., Mateev, L.N.

“…Ozone deepletion was the main effect revealed up to now after penetration of Solar Cosmic Rays (SCR) in the middle atmosphere. Making use of satellite data…”
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A comparison between effects of solar proton events and of geomagnetic storms on the ozone profiles by Tassev, Yordan, Velinov, Peter I.Y., Mateev, Lachezar, Tomova, Dimitrinka

“…Short-term variations along the ozone profiles (both in experimental and theoretical aspects) are discussed in the present work. Thus, a selected period of the…”
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