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Usoskin, I. G.; Kovaltsov, G. A.; Mironova, I. A.; Tylka, A. J.; Dietrich, W. F. (2011)
Publisher: Copernicus Publications
Languages: English
Types: Article
Subjects: Chemistry, QD1-999, Physics, QC1-999
Using a new reconstruction of the solar proton energy spectra for Ground Level Enhancement (GLE) events, based on fits to measurements from ground-based and satellite-borne instruments covering a wide energy range, we quantitatively evaluate the possible ionization effects in the low and middle atmosphere for 58 out of the 66 GLE events recorded by the world-wide neutron monitor network since 1956. The ionization computations are based on the numerical 3D CRAC:CRII model. A table of the ionization effect caused by the GLE events at different atmospheric heights is provided. It is shown that the direct ionization effect is negligible or even negative, due to the accompanying Forbush decreases, in all low- and mid-latitude regions. The ionization effect is important only in the polar atmosphere, where it can be dramatic in the middle and upper atmosphere (above 30 km) during major GLE events.
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    • Atri, D., Melott, A. L., and Thomas, B. C.: Lookup tables to compute high energy cosmic ray induced atmospheric ionization and changes in atmospheric chemistry, J. Cosmol. Astropart. Phys., 5, 008, doi:10.1088/1475-7516/2010/05/008, 2010.
    • Band, D., Matteson, J., Ford, L., Schaefer, B., Palmer, D., Teegarden, B., Cline, T., Briggs, M., Paciesas, W., Pendleton, G., Fishman, G., Kouveliotou, C., Meegan, C., Wilson, R., and Lestrade, P.: BATSE observations of gamma-ray burst spectra. I - Spectral diversity, Astrophys. J., 413, 281-292, doi:10.1086/172995, 1993.
    • Bazilevskaya, G. A., Usoskin, I. G., Flu¨ckiger, E. O., Harrison, R. G., Desorgher, L., Bu¨tikofer, R., Krainev, M. B., Makhmutov, V. S., Stozhkov, Y. I., Svirzhevskaya, A. K., Svirzhevsky, N. S., and Kovaltsov, G. A.: Cosmic ray induced ion production in the atmosphere, Space Sci. Rev., 137, 149-173, doi:10.1007/s11214-008-9339-y, 2008.
    • Belov, A. V., Eroshenko, E. A., Kryakunova, O. N., Kurt, V. G., and Yanke, V. G.: Ground level enhancements of solar cosmic rays during the last three solar cycles, Geomag. Aeronom., 50, 21-33, doi:10.1134/S0016793210010032, 2010.
    • Bu¨tikofer, R., Flu¨ckiger, E., Desorgher, L., and Moser, M.: The extreme solar cosmic ray particle event on 20 January 2005 and its influence on the radiation dose rate at aircraft altitude, Sci. Total Environ., 391, 177-183, 2008.
    • Cane, H. V.: Coronal Mass Ejections and Forbush Decreases, Space Sci. Rev., 93, 55-77, doi:10.1023/A:1026532125747, 2000.
    • Cane, H. V., Reames, D. V., and von Rosenvinge, T. T.: The role of interplanetary shocks in the longitude distribution of solar energetic particles, J. Geophys. Res., 93, 9555-9567, doi:10.1029/JA093iA09p09555, 1988.
    • Clem, J. and Dorman, L.: Neutron Monitor Response Functions, Space Sci. Rev., 93, 335-359, doi:10.1023/A:1026508915269, 2000.
    • Cooke, D., Humble, J., Shea, M., Smart, D., Lund, N., Rasmussen, I., Byrnak, B., Goret, P., and Petrou, N.: On cosmic-ray cut-off terminology, Nuovo Cimento C, 14, 213-234, 1991.
    • Damiani, A., Storini, M., Laurenza, M., and Rafanelli, C.: Solar particle effects on minor components of the Polar atmosphere, Annales Geophys., 26, 361-370, 2008.
    • Duggal, S. P.: Relativistic solar cosmic rays, Rev. Geophys. Space Phys., 17, 1021-1058, 1979.
    • Feynman, J. and Gabriel, S.: Period and phase of the 88-year solar cycle and the Maunder minimum - Evidence for a chaotic sun, Solar Phys., 127, 393-403, 1990.
    • Feynman, J., Tylka, A., Reames, D., and Gabriel, S.: Near-Sun Energetic Particle Environment of Solar Probe-Phase 1, Tech. rep., JPL, 2000.
    • Jackman, C. H., DeLand, M. T., Labow, G. J., Fleming, E. L., Weisenstein, D. K., Ko, M. K. W., Sinnhuber, M., and Russell, J. M.: Neutral atmospheric influences of the solar proton events in October-November 2003, J. Geophys. Res., 110, A09S27, doi:10.1029/2004JA010888, 2005.
    • Jackman, C. H., Marsh, D. R., Vitt, F. M., Garcia, R. R., Fleming, E. L., Labow, G. J., Randall, C. E., Lo´pez-Puertas, M., Funke, B., von Clarmann, T., and Stiller, G. P.: Short- and medium-term atmospheric constituent effects of very large solar proton events, Atmos. Chem. Phys., 8, 765-785, doi:10.5194/acp-8-765-2008, 2008.
    • Jackman, C. H., Marsh, D. R., Vitt, F. M., Garcia, R. R., Randall, C. E., Fleming, E. L., and Frith, S. M.: Long-term middle atmospheric influence of very large solar proton events, J. Geophys. Res., 114, D11304, doi:10.1029/2008JD011415, 2009.
    • King, J. H.: Solar Proton Fluences for 1977-1983 Space Missions, J. Spacecraft and Rockets, 11, 401-408, 1974.
    • Klecker, B., Kunow, H., Cane, H., Dalla, S., Heber, B., Kecskemety, K., Klein, K.-L., Kota, J., Kucharek, H., Lario, D., Lee, M., Popecki, M., Posner, A., Rodriguez-Pacheco, J., Sanderson, T., Simnett, G., and Roelof, E.: Energetic Particle Observations, Space Sci. Rev., 123, 217-250, 2006.
    • Lario, D. and Simnett, G. M.: Solar Energetic Particle Variations, in: Solar Variability and its Effects on Climate, edited by J. M. Pap, P. Fox, C. Frohlich, H. S. Hudson, J. Kuhn, J. McCormack, G. North, W. Sprigg, & S. T. Wu, vol. 141 of AGU Geophysical Monograph Series, 195-216, Washington DC, USA, 2004.
    • McCracken, K. G., Moraal, H., and Stoker, P. H.: Investigation of the multiple-component structure of the 20 January 2005 cosmic ray ground level enhancement, J. Geophys. Res., 113, A12101, doi:10.1029/2007JA012829, 2008.
    • Mewaldt, R.: Solar Energetic Particle Composition, Energy Spectra, and Space Weather, Space Sci. Rev., 124, 303-316, doi:10.1007/s11214-006-9091-0, 2006.
    • Mironova, I. A., Desorgher, L., Usoskin, I. G., Flu¨ckiger, E. O., and Bu¨tikofer, R.: Variations of aerosol optical properties during the extreme solar event in January 2005, Geophys. Res. Lett., 35, L18610, doi:10.1029/2008GL035120, 2008.
    • Miroshnichenko, L. I.: Solar cosmic rays in the system of solar terrestrial relations, J. Atmos. Solar-Terr. Phys., 70, 450-466, doi:10.1016/j.jastp.2007.08.027, 2008.
    • Mishev, A., Velinov, P., and Mateev, L.: Atmospheric Ionization Due to Solar Cosmic Rays from 20 January 2005 Calculated with Monte Carlo Simulations, Compt. Rend. Acad. Bulgar Sci., 63, 1635-1642, 2010.
    • Papaioannou, A., Malandraki, O., Belov, A., Skoug, R., Mavromichalaki, H., Eroshenko, E., Abunin, A., and Lepri, S.: On the Analysis of the Complex Forbush Decreases of January 2005, Solar Phys., 266, 181-193, doi:10.1007/s11207-010- 9601-9, 2010.
    • Plainaki, C., Belov, A., Eroshenko, E., Mavromichalaki, H., and Yanke, V.: Modeling ground level enhancements: Event of 20 January 2005, J. Geophys. Res., 112, A04102, doi:10.1029/2006JA011926, 2007.
    • Reames, D. V., Barbier, L. M., and Ng, C. K.: The Spatial Distribution of Particles Accelerated by Coronal Mass Ejection-driven Shocks, Astrophys. J., 466, 473-486, doi:10.1086/177525, 1996.
    • Reedy, R.: Solar proton fluxes since 1956, in: Lunar and Planetary Science VIII, edited by Merril, R., Lunar and Planetary Institute, Houston, USA, 825-839, 1977.
    • Seppa¨la¨, A., Clilverd, M. A., Rodger, C. J., Verronen, P. T., and Turunen, E.: The effects of hard-spectra solar proton events on the middle atmosphere, J. Geophys. Res., 113, A11311, doi:10.1029/2008JA013517, 2008.
    • Shea, M. A., Smart, D. F., Humble, J. E., Fluckiger, E. O., Gentile, L. C., and Nichol: A Revised Standard Format for Cosmic Ray Ground-Level Event Data, in: Proc. 20th Internat. Cosmic Ray Conf., Moscow, USSR, 3, 171-174, 1987.
    • Stoker, P. H.: Relativistic Solar Proton Events, Space Sci. Rev., 73, 327-385, doi:10.1007/BF00751240, 1994.
    • Tylka, A. and Dietrich, W.: A new and comprehensive analysis of proton spectra in ground-level encahnced (GLE) solar particle events, in: 31th International Cosmic Ray Conference, Universal Academy Press, Lodz´, Poland, 2009.
    • Tylka, A., Dietrich, W., Lopate, W., and Reames, D.: High-energy solar Fe in the 29 September 1989 Ground Level Event, in: 26th International Cosmic Ray Conference, edited by: Kieda, D., Salamon, M., and Dingus, B., Salt Lake City, Utah, USA, 6, 67-70, 1999.
    • Tylka, A. J., Cohen, C. M. S., Dietrich, W. F., Lee, M. A., Maclennan, C. G., Mewaldt, R. A., Ng, C. K., and Reames, D. V.: A Comparative Study of Ion Characteristics in the Large Gradual Solar Energetic Particle Events of 2002 April 21 and 2002 August 24, Astrophys. J. Suppl., 164, 536-551, doi:10.1086/503203, 2006.
    • Tylka, A. J., Dietrich, W. F., and Atwell, W.: Band function representation of solar proton spectra in Ground-Level Events, in preparation, 2011.
    • Usoskin, I. G. and Kovaltsov, G. A.: Cosmic ray induced ionization in the atmosphere: Full modeling and practical applications, J. Geophys. Res., 111, D21206, doi:10.1029/2006JD007150, 2006.
    • Usoskin, I. G., Gladysheva, O. G., and Kovaltsov, G. A.: Cosmic ray-induced ionization in the atmosphere: spatial and temporal changes, J. Atmos. Solar-Terr. Phys., 66, 1791-1796, doi:10.1016/j.jastp.2004.07.037, 2004.
    • Usoskin, I. G., Alanko-Huotari, K., Kovaltsov, G. A., and Mursula, K.: Heliospheric modulation of cosmic rays: Monthly reconstruction for 1951-2004, J. Geophys. Res., 110, A12108, doi:10.1029/2005JA011250, 2005.
    • Usoskin, I. G., Desorgher, L., Velinov, P., Storini, M., Flu¨ckiger, E. O., Bu¨tikofer, R., and Kovaltsov, G. A.: Ionization of the earth's atmosphere by solar and galactic cosmic rays, Acta Geophys., 57, 88-101, doi:10.2478/s11600-008-0019-9, 2009.
    • Usoskin, I. G., Kovaltsov, G. A., and Mironova, I. A.: Cosmic ray induced ionization model CRAC:CRII: An extension to the upper atmosphere, J. Geophys. Res., 115, D10302, doi:10.1029/2009JD013142, 2010.
    • Usoskin, I. G., Kovaltsov, G. A., and Bazilevskaya, G. A.: Solar modulation parameter for cosmic rays since 1936 reconstructed from ground-based neutron monitors and ionization chambers, J. Geophys. Res., 116, A02104, doi:10.1029/2010JA016105, 2011.
    • Vainio, R., Desorgher, L., Heynderickx, D., Storini, M., Fl u¨ckiger, E., Horne, R. B., Kovaltsov, G. A., Kudela, K., Laurenza, M., McKenna-Lawlor, S., Rothkaehl, H., and Usoskin, I. G.: Dynamics of the Earth's particle radiation environment, Space Sci. Rev., 147, 187-231, doi:10.1007/s11214-009-9496-7, 2009.
    • Velinov, P. I. Y., Mishev, A., and Mateev, L.: Model for induced ionization by galactic cosmic rays in the Earth atmosphere and ionosphere, Adv. Space Res., 44, 1002-1007, doi:10.1016/j.asr.2009.06.006, 2009.
    • Vitt, F. M. and Jackman, C. H.: A comparison of sources of odd nitrogen production from 1974 through 1993 in the Earth's middle atmosphere as calculated using a two-dimensional model, J. Reophys. Res., 101, 6729-6740, doi:10.1029/95JD03386, 1996.
    • Webber, W. and Higbie, P.: Production of cosmogenic Be nuclei in the Earth's atmosphere by cosmic rays: Its dependence on solar modulation and the interstellar cosmic ray spectrum, J. Geophys. Res., 108, 1355, doi:10.1029/2003JA009863, 2003.
    • Wissing, J. M. and Kallenrode, M.-B.: Atmospheric Ionization Module Osnabru¨ck (AIMOS): A 3-D model to determine atmospheric ionization by energetic charged particles from different populations, J. Geophys. Res., 114, A06104, doi:10.1029/2008JA013884, 2009.
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