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Energetic particle precipitation (EPP) provides a key source of atmospheric ionization, particularly during the polar night when solar radiation is absent. This ionization triggers chemical processes that leading to dramatic changes in the chemical and ionic composition of the atmosphere and the ionosphere (for example, layer D). Here, we present the variability of the ion composition of the high-latitude ionosphere simulated using a one-dimensional radiative-convective photochemical model with interactive neutral and ion chemistry.

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Variability of the Layer D Ion Composition Over the High-Latitudes

  • 会议论文

  • 发表日期：

    2026年

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  • Dmitry Grankin,
  • Irina Mironova,
  • Eugene Rozanov

摘要

Energetic particle precipitation (EPP) provides a key source of atmospheric ionization, particularly during the polar night when solar radiation is absent. This ionization triggers chemical processes that leading to dramatic changes in the chemical and ionic composition of the atmosphere and the ionosphere (for example, layer D). Here, we present the variability of the ion composition of the high-latitude ionosphere simulated using a one-dimensional radiative-convective photochemical model with interactive neutral and ion chemistry.