The impact of intense fluxes of energetic protons on the low-latitude ionosphere

Alla Suvorova; Alexei Dmitriev

doi:10.1051/e3sconf/202019601011

The impact of intense fluxes of energetic protons on the low-latitude ionosphere

Alla Suvorova, Alexei Dmitriev

Department of Space Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Experiments on board low-Earth orbit satellites show that energetic particles (tens of keV) of the Earth's radiation belt can penetrate to the equatorial ionosphere. Impact of the energetic particles on the upper atmosphere and ionosphere was studied for the case of the geomagnetic storm on 22 July 2009. We present changes of local ion concentration in the low-latitude ionosphere at night measured by the C/NOFS satellite at heights 400-800 km during the magnetic storm and quiet days. The ionospheric density during the storm was compared with a simultaneous observation of enhancements of 30-80 keV proton fluxes measured by the NOAA/POES satellites near the equator at height ∼850 km. We suggest that ionospheric irregularities at night can be caused by effect of energetic protons.

Original language	English
Article number	01011
Journal	E3S Web of Conferences
Volume	196
DOIs	https://doi.org/10.1051/e3sconf/202019601011
State	Published - 16 Oct 2020
Event	11th International Conference �Solar-Terrestrial Relations and Physics of Earthquake Precursors�, STRPEP 2020 - Paratunka, Russian Federation Duration: 22 Sep 2020 → 25 Sep 2020

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title = "The impact of intense fluxes of energetic protons on the low-latitude ionosphere",

abstract = "Experiments on board low-Earth orbit satellites show that energetic particles (tens of keV) of the Earth's radiation belt can penetrate to the equatorial ionosphere. Impact of the energetic particles on the upper atmosphere and ionosphere was studied for the case of the geomagnetic storm on 22 July 2009. We present changes of local ion concentration in the low-latitude ionosphere at night measured by the C/NOFS satellite at heights 400-800 km during the magnetic storm and quiet days. The ionospheric density during the storm was compared with a simultaneous observation of enhancements of 30-80 keV proton fluxes measured by the NOAA/POES satellites near the equator at height ∼850 km. We suggest that ionospheric irregularities at night can be caused by effect of energetic protons. ",

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T1 - The impact of intense fluxes of energetic protons on the low-latitude ionosphere

AU - Suvorova, Alla

AU - Dmitriev, Alexei

PY - 2020/10/16

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N2 - Experiments on board low-Earth orbit satellites show that energetic particles (tens of keV) of the Earth's radiation belt can penetrate to the equatorial ionosphere. Impact of the energetic particles on the upper atmosphere and ionosphere was studied for the case of the geomagnetic storm on 22 July 2009. We present changes of local ion concentration in the low-latitude ionosphere at night measured by the C/NOFS satellite at heights 400-800 km during the magnetic storm and quiet days. The ionospheric density during the storm was compared with a simultaneous observation of enhancements of 30-80 keV proton fluxes measured by the NOAA/POES satellites near the equator at height ∼850 km. We suggest that ionospheric irregularities at night can be caused by effect of energetic protons.

AB - Experiments on board low-Earth orbit satellites show that energetic particles (tens of keV) of the Earth's radiation belt can penetrate to the equatorial ionosphere. Impact of the energetic particles on the upper atmosphere and ionosphere was studied for the case of the geomagnetic storm on 22 July 2009. We present changes of local ion concentration in the low-latitude ionosphere at night measured by the C/NOFS satellite at heights 400-800 km during the magnetic storm and quiet days. The ionospheric density during the storm was compared with a simultaneous observation of enhancements of 30-80 keV proton fluxes measured by the NOAA/POES satellites near the equator at height ∼850 km. We suggest that ionospheric irregularities at night can be caused by effect of energetic protons.

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SN - 2555-0403

VL - 196

JO - E3S Web of Conferences

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T2 - 11th International Conference �Solar-Terrestrial Relations and Physics of Earthquake Precursors�, STRPEP 2020

Y2 - 22 September 2020 through 25 September 2020

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The impact of intense fluxes of energetic protons on the low-latitude ionosphere

Abstract

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