Ionization of the earth’s atmosphere by solar and galactic cosmic rays IG Usoskin, L Desorgher, P Velinov, M Storini, EO Flückiger, R Bütikofer, ... Acta Geophysica 57, 88-101, 2009 | 151 | 2009 |
On ionization in the ionospheric D-region by galactic and solar cosmic rays P Velinov Journal of Atmospheric and Terrestrial Physics 30 (11), 1891-1905, 1968 | 96 | 1968 |
Model for induced ionization by galactic cosmic rays in the Earth atmosphere and ionosphere PIY Velinov, A Mishev, L Mateev Advances in Space Research 44 (9), 1002-1007, 2009 | 68 | 2009 |
Impact of cosmic rays and solar energetic particles on the Earth’s ionosphere and atmosphere PIY Velinov, S Asenovski, K Kudela, J Lastovicka, L Mateev, A Mishev, ... Journal of Space Weather and Space Climate 3, A14, 2013 | 63 | 2013 |
Analysis of extreme solar activity in early September 2017: G4–severe geomagnetic storm (07÷ 08.09) and GLE72 (10.09) in solar minimum Y Tassev, PIY Velinov, D Tomova, L Mateev Comptes rendus de l’Acadèmie bulgare des Sciences 70 (10), 1437-1444, 2017 | 55 | 2017 |
Ionization processes in the atmosphere of Titan-III. Ionization by high-Z nuclei cosmic rays G Gronoff, C Mertens, J Lilensten, L Desorgher, E Flückiger, P Velinov Astronomy & Astrophysics 529, A143, 2011 | 52 | 2011 |
Progress in space weather modeling in an operational environment I Tsagouri, A Belehaki, N Bergeot, C Cid, V Delouille, T Egorova, ... Journal of Space Weather and Space Climate 3, A17, 2013 | 49 | 2013 |
Cosmic-Ray influence on the ionosphere and on radio-wave propagatión P Velinov, G Nestorov, LI Dorman Bulgarian Academy of Sciences, 1974 | 45 | 1974 |
Improved cosmic ray ionization model for the system ionosphere–atmosphere—Calculation of electron production rate profiles PIY Velinov, LN Mateev Journal of atmospheric and solar-terrestrial physics 70 (2-4), 574-582, 2008 | 39 | 2008 |
Ionization effect of solar protons in the Earth atmosphere–case study of the 20 January 2005 SEP event AL Mishev, PIY Velinov, L Mateev, Y Tassev Advances in Space Research 48 (7), 1232-1237, 2011 | 37 | 2011 |
Atmosphere ionization due to cosmic ray protons estimated with CORSIKA code simulations A Mishev, PIY Velinov COMPTES RENDUS-ACADEMIE BULGARE DES SCIENCES 60 (3), 225, 2007 | 37 | 2007 |
Normalized ionization yield function for various nuclei obtained with full Monte Carlo simulations AL Mishev, PIY Velinov Advances in space research 48 (1), 19-24, 2011 | 36 | 2011 |
Determination of electron production rates caused by cosmic ray particles in ionospheres of terrestrial planets PIY Velinov, MB Buchvarova, L Mateev, H Ruder Advances in Space Research 27 (11), 1901-1908, 2001 | 36 | 2001 |
Cosmic ray induced ionization in the atmosphere estimated with CORSIKA code simulations PIY Velinov, A Mishev COMPTES RENDUS-ACADEMIE BULGARE DES SCIENCES 60 (5), 493, 2007 | 33 | 2007 |
The effect of model assumptions on computations of cosmic ray induced ionization in the atmosphere AL Mishev, P Velinov Journal of Atmospheric and Solar-Terrestrial Physics 72 (5-6), 476-481, 2010 | 32 | 2010 |
3-D model for cosmic ray planetary ionisation in the middle atmosphere PIY Velinov, L Mateev, N Kilifarska Annales Geophysicae 23 (9), 3043-3046, 2005 | 32 | 2005 |
Determination of medium time scale ionization effects at various altitudes in the stratosphere and troposphere during ground level enhancement due to solar cosmic rays on 13.12 … A Mishev, PIY Velinov Compt. rend. Acad. bulg. Sci 68 (11), 1427-1432, 2015 | 31 | 2015 |
Method for calculation of ionization profiles caused by cosmic rays in giant planet ionospheres from Jovian group PIY Velinov, H Ruder, L Mateev, M Buchvarova, V Kostov Advances in Space Research 33 (2), 232-239, 2004 | 31 | 2004 |
An expression for ionospheric electron production rate by cosmic rays PIY Velinov CR Acad. Bulg. Sci 19 (2), 109-112, 1966 | 30 | 1966 |
Influence of hadron and atmospheric models on computation of cosmic ray ionization in the atmosphere—Extension to heavy nuclei AL Mishev, PIY Velinov Journal of Atmospheric and Solar-Terrestrial Physics 120, 111-120, 2014 | 29 | 2014 |