Showing 1 - 20 results of 26 for search 'P. T. Verronen', query time: 0.07s Refine Results
  1. 1
    Modelling the effects of the October 1989 solar proton event on mesospheric odd nitrogen using a detailed ion and neutral chemistry model

    Modelling the effects of the October 1989 solar proton event on mesospheric odd nitrogen using a detailed ion and neutral chemistry model by P. T. Verronen, P. T. Verronen, E. Turunen, Th. Ulich, E. Kyrölä

    Published 2002-12-01
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  2. 2
    Analysis and parameterisation of ionic reactions affecting middle atmospheric HO<sub>x</sub> and NO<sub>y</sub> during solar proton events

    Analysis and parameterisation of ionic reactions affecting middle atmospheric HO<sub>x</sub> and NO<sub>y</sub> during solar proton events by P. T. Verronen, R. Lehmann

    Published 2013-05-01
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  3. 3
    Odd hydrogen response thresholds for indication of solar proton and electron impact in the mesosphere and stratosphere

    Odd hydrogen response thresholds for indication of solar proton and electron impact in the mesosphere and stratosphere by T. Häkkilä, P. T. Verronen, P. T. Verronen, L. Millán, M. E. Szeląg, N. Kalakoski, A. Kero

    Published 2020-12-01
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  4. 4
    Is there a direct solar proton impact on lower-stratospheric ozone?

    Is there a direct solar proton impact on lower-stratospheric ozone? by J. Jia, A. Kero, N. Kalakoski, M. E. Szeląg, M. E. Szeląg, P. T. Verronen, P. T. Verronen

    Published 2020-12-01
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  5. 5
    Technical Note: Continuity of MIPAS-ENVISAT operational ozone data quality from full- to reduced-spectral-resolution operation mode

    Technical Note: Continuity of MIPAS-ENVISAT operational ozone data quality from full- to reduced-spectral-resolution operation mode by S. Ceccherini, U. Cortesi, P. T. Verronen, E. Kyrölä

    Published 2008-04-01
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  6. 6
    Arecibo measurements of D-region electron densities during sunset and sunrise: implications for atmospheric composition

    Arecibo measurements of D-region electron densities during sunset and sunrise: implications for atmospheric composition by C. Baumann, A. Kero, S. Raizada, M. Rapp, M. Rapp, M. P. Sulzer, P. T. Verronen, P. T. Verronen, J. Vierinen

    Published 2022-08-01
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  7. 7
    Simulated seasonal impact on middle atmospheric ozone from high-energy electron precipitation related to pulsating aurorae

    Simulated seasonal impact on middle atmospheric ozone from high-energy electron precipitation related to pulsating aurorae by P. T. Verronen, P. T. Verronen, A. Kero, N. Partamies, N. Partamies, M. E. Szeląg, S.-I. Oyama, Y. Miyoshi, E. Turunen

    Published 2021-10-01
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  8. 8
    Sunset transition of negative charge in the D-region ionosphere during high-ionization conditions

    Sunset transition of negative charge in the D-region ionosphere during high-ionization conditions by P. T. Verronen, Th. Ulich, E. Turunen, C. J. Rodger

    Published 2006-03-01
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  9. 9
    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry

    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry by N. Kalakoski, P. T. Verronen, P. T. Verronen, A. Seppälä, M. E. Szeląg, M. E. Szeląg, A. Kero, D. R. Marsh, D. R. Marsh

    Published 2020-07-01
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  10. 10
    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry

    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry by N. Kalakoski, P. T. Verronen, P. T. Verronen, A. Seppälä, M. E. Szeląg, M. E. Szeląg, A. Kero, D. R. Marsh, D. R. Marsh

    Published 2020-07-01
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  11. 11
    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry

    Statistical response of middle atmosphere composition to solar proton events in WACCM-D simulations: the importance of lower ionospheric chemistry by N. Kalakoski, P. T. Verronen, P. T. Verronen, A. Seppälä, M. E. Szeląg, M. E. Szeląg, A. Kero, D. R. Marsh, D. R. Marsh

    Published 2020-07-01
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  12. 12
    Ground-based Ku-band microwave observations of ozone in the polar middle atmosphere

    Ground-based Ku-band microwave observations of ozone in the polar middle atmosphere by D. A. Newnham, M. A. Clilverd, W. D. J. Clark, M. Kosch, M. Kosch, M. Kosch, P. T. Verronen, P. T. Verronen, A. E. E. Rogers

    Published 2022-04-01
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  13. 13
    Latitudinal extent of the January 2005 solar proton event in the Northern Hemisphere from satellite observations of hydroxyl

    Latitudinal extent of the January 2005 solar proton event in the Northern Hemisphere from satellite observations of hydroxyl by P. T. Verronen, C. J. Rodger, M. A. Clilverd, H. M. Pickett, E. Turunen

    Published 2007-11-01
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  14. 14
    Simulation study for ground-based Ku-band microwave observations of ozone and hydroxyl in the polar middle atmosphere

    Simulation study for ground-based Ku-band microwave observations of ozone and hydroxyl in the polar middle atmosphere by D. A. Newnham, M. A. Clilverd, M. Kosch, M. Kosch, A. Seppälä, P. T. Verronen

    Published 2019-03-01
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  15. 15
    Polar-night O<sub>3</sub>, NO<sub>2</sub> and NO<sub>3</sub> distributions during sudden stratospheric warmings in 2003–2008 as seen by GOMOS/Envisat

    Polar-night O<sub>3</sub>, NO<sub>2</sub> and NO<sub>3</sub> distributions during sudden stratospheric warmings in 2003–2008 as seen by GOMOS/Envisat by E. Kyrölä, P. T. Verronen, S.-M. Päivärinta, N. Kalakoski, V. F. Sofieva, L. Backman, J. Tamminen

    Published 2012-01-01
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  16. 16
    Retrieval of ozone profiles from GOMOS limb scattered measurements

    Retrieval of ozone profiles from GOMOS limb scattered measurements by S. Tukiainen, E. Kyrölä, P. T. Verronen, D. Fussen, L. Blanot, G. Barrot, A. Hauchecorne, N. Lloyd

    Published 2011-04-01
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  17. 17
    The atmospheric implications of radiation belt remediation

    The atmospheric implications of radiation belt remediation by C. J. Rodger, M. A. Clilverd, Th. Ulich, P. T. Verronen, E. Turunen, N. R. Thomson

    Published 2006-08-01
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  18. 18
    Mesosphere-to-stratosphere descent of odd nitrogen in February–March 2009 after sudden stratospheric warming

    Mesosphere-to-stratosphere descent of odd nitrogen in February–March 2009 after sudden stratospheric warming by S.-M. Salmi, P. T. Verronen, L. Thölix, E. Kyrölä, L. Backman, A. Yu. Karpechko, A. Seppälä

    Published 2011-05-01
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  19. 19
    Lightning-driven inner radiation belt energy deposition into the atmosphere: implications for ionisation-levels and neutral chemistry

    Lightning-driven inner radiation belt energy deposition into the atmosphere: implications for ionisation-levels and neutral chemistry by C. J. Rodger, C.-F. Enell, E. Turunen, M. A. Clilverd, N. R. Thomson, P. T. Verronen

    Published 2007-08-01
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  20. 20
    <i>D</i>-region ion–neutral coupled chemistry (Sodankylä Ion Chemistry, SIC) within the Whole Atmosphere Community Climate Model (WACCM 4) – WACCM-SIC and WACCM-rSIC

    <i>D</i>-region ion–neutral coupled chemistry (Sodankylä Ion Chemistry, SIC) within the Whole Atmosphere Community Climate Model (WACCM 4) – WACCM-SIC and WACCM-rSIC by T. Kovács, J. M. C. Plane, W. Feng, T. Nagy, M. P. Chipperfield, P. T. Verronen, M. E. Andersson, D. A. Newnham, M. A. Clilverd, D. R. Marsh

    Published 2016-09-01
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