Ionization of the Polar Atmosphere by Energetic Electron Precipitation Retrieved From Balloon Measurements

Mironova, Irina; Artamonov, A. A.; Bazilevskaya, G. A.; Rozanov, Eugene; Kovaltsov, Gennady A.; Махмутов, В. С.; Mishev, Alexander; Карагодин, А В

doi:10.1029/2018gl079421

Cited by 36 publications

(32 citation statements)

References 41 publications

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“…EPP mostly contains electrons and protons and depends on the energy and intensity of the precipitating flux. EPP leads to increased atmospheric ionization rates [21][22][23][24][25][26][27]. Solar energetic protons precipitate mostly into the middle mesosphere and down to the stratosphere, electrons affect the lower thermosphere to the upper mesosphere.…”

Section: Energetic Particle Precipitation During Selected Extreme Geomentioning

confidence: 99%

Energetic Particle Precipitation during Extreme Space Weather Events

Yakovchuk

Mironova

2020

E3S Web Conf.

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Here we provide a selection of extreme geomagnetic storms of the last century based on NOAA classification which lead to the energetic particle precipitation (EPP). EPP of such geomagnetic storms can cause power outages, communication failures, and navigation problems as well as impact on the environment and the ozone level. Studies of historical extreme geomagnetic storms together with EPP for large space weather events in the space era can help to reconstruct the parameters of extreme events of past centuries.

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Section: Energetic Particle Precipitation During Selected Extreme Geomentioning

confidence: 99%

Energetic Particle Precipitation during Extreme Space Weather Events

Yakovchuk

Mironova

2020

E3S Web Conf.

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“…Recent analyses of atmospheric ionization rates provided for chemistry-climate model studies based on satellite observations of energy electron fluxes indicate uncertainties in the determination of atmospheric ionization rates [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Energetic electron precipitation and their atmospheric effect

2020

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Energetic particle precipitation induces ionization of the atmosphere which initiates a chain of reaction cycles affecting atmospheric composition and dynamics potentially down to surface weather systems. Ionization rates are retrieved based on yield functions or pre-calculated monoenergetic electron flux and energy spectra of precipitated energetic particles. Usually, information about energy spectra is obtained from satellites, balloons, and various ground-based observations. In all cases, some assumptions about spectral distribution for the entire energy range have to be made. As ionization rates are widely used in chemistry-climate models to estimate the atmospheric response to particle forcing, evaluation of the energy spectra is a key task in the solar-terrestrial studies. In this paper, it is shown that possible uncertainties of the ionization rates retrieval based on different spectral functions can lead to large disagreements in the ionization rates, with implications for the modelled response of atmospheric composition and dynamics to electron precipitation.

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“…The impact of ionization rates induced by energetic particles of different origin on parameters of polar atmosphere, chemical composition of the atmosphere and dynamics was extensively evaluated during last decades [e.g., [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Impact of middle range energy electron precipitations on polar winter ozone losses

2019

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In this paper we present the study of polar winter atmospheric response to middle range energy electron precipitations. We analse the variability of the odd nitrogen group NOx, hydrogen group HOx in the polar wonter atmosphere and estimate the ozone (O3) depletion caused by the middle range energy electron precipitations. For the study we exploit 1-D radiative-convective model with interactive neutral and ion chemistry. Ionization rates induced by middle-energy electrons were taken from the CMIP6 (Coupled Model Intercomparison Project Phase 6) solar forcing dataset. The atmospheric response to ionization rates induced by middleenergy electrons during polar night consists of increase of mesospheric HOx by 0.1-0.4 ppbv and NOx by 10-90 ppbv driving ozone losses up to 5% over zonal band of about 750 NH.

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Ionization of the Polar Atmosphere by Energetic Electron Precipitation Retrieved From Balloon Measurements

Cited by 36 publications

References 41 publications

Energetic Particle Precipitation during Extreme Space Weather Events

Energetic Particle Precipitation during Extreme Space Weather Events

Energetic electron precipitation and their atmospheric effect

Impact of middle range energy electron precipitations on polar winter ozone losses

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