TY - JOUR

T1 - Atmospheric Response to EEP during Geomagnetic Disturbances

AU - Grankin, Dmitry

AU - Mironova, Irina

AU - Bazilevskaya, Galina

AU - Rozanov, Eugene

AU - Egorova, Tatiana

PY - 2023/1/30

Y1 - 2023/1/30

N2 - Energetic electron precipitation (EEP) is associated with solar activity and space weather and plays an important role in the Earth’s polar atmosphere. Energetic electrons from the radiation belt precipitate into the atmosphere during geomagnetic disturbances and cause additional ionization rates in the polar middle atmosphere. These induced atmospheric ionization rates lead to the formation of radicals in ion-molecular reactions at the heights of the mesosphere and upper stratosphere with the formation of reactive compounds of odd nitrogen NOy and odd hydrogen HOx groups. These compounds are involved in catalytic reactions that destroy the ozone. In this paper, we present the calculation of atmospheric ionization rates during geomagnetic disturbances using reconstructed spectra of electron precipitation from balloon observations; estimation of ozone destruction during precipitation events using one-dimensional photochemical radiation-convective models, taking into account both parameterization and ion chemistry; as well as provide an estimation of electron density during these periods.

AB - Energetic electron precipitation (EEP) is associated with solar activity and space weather and plays an important role in the Earth’s polar atmosphere. Energetic electrons from the radiation belt precipitate into the atmosphere during geomagnetic disturbances and cause additional ionization rates in the polar middle atmosphere. These induced atmospheric ionization rates lead to the formation of radicals in ion-molecular reactions at the heights of the mesosphere and upper stratosphere with the formation of reactive compounds of odd nitrogen NOy and odd hydrogen HOx groups. These compounds are involved in catalytic reactions that destroy the ozone. In this paper, we present the calculation of atmospheric ionization rates during geomagnetic disturbances using reconstructed spectra of electron precipitation from balloon observations; estimation of ozone destruction during precipitation events using one-dimensional photochemical radiation-convective models, taking into account both parameterization and ion chemistry; as well as provide an estimation of electron density during these periods.

KW - atmospheric chemistry modeling

KW - atmospheric ionization

KW - energetic electron precipitation

UR - https://www.mdpi.com/2073-4433/14/2/273/pdf

UR - https://www.mendeley.com/catalogue/3793bed5-dde8-376f-a829-acfc8e53a12d/

U2 - 10.3390/atmos14020273

DO - 10.3390/atmos14020273

M3 - Article

VL - 14

JO - ATMOSPHERE

JF - ATMOSPHERE

SN - 1598-3560

IS - 2

M1 - 273

ER -