Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Auroral Ionosphere Model with PC Index as An Input. / Николаева, Вера; Гордеев, Евгений Иванович; Николаев, Александр; Рогов, Денис; Трошичев, Олег.
в: ATMOSPHERE, Том 13, № 3, 402, 03.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Auroral Ionosphere Model with PC Index as An Input
AU - Николаева, Вера
AU - Гордеев, Евгений Иванович
AU - Николаев, Александр
AU - Рогов, Денис
AU - Трошичев, Олег
N1 - Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/3
Y1 - 2022/3
N2 - Auroral Ionosphere Model (AIM-E) is designed to calculate chemical content in the high-latitude E region ionosphere and takes into account both the solar EUV radiation and the electron precipitation of magnetospheric origin. The latter is extremely important for auroral ionosphere chemistry especially in disturbed conditions. In order to maximize the AIM-E timing ac-curacy when simulating highly variable periods in the course of geomagnetic storms and sub-storms, we suggest to parameterize the OVATION-Prime empirical precipitation model with the ground-based Polar Cap (PC) index. This gives an advantage to: (1) perform ionospheric simulation with actual input, since PC index reflects the geoeffective solar wind conditions; (2) promptly assess the current geomagnetic situation, since PC index is available in real-time with 1 min resolution. The simulation results of AIM-E with OVATION-Prime (PC) demonstrate a good agreement with the ground-based incoherent scatter radar data (EISCAT UHF, Tromso) and with the vertical sounding data in the Arctic zone during events of intense particle precipitation. The model re-produces well the electron content calculated in vertical column (90–140 km) and critical frequency of sporadic E layer (fOEs) formed by precipitating electrons. The AIM-E (PC) model can be applied to monitor the sporadic E layer in real-time and in the entire high-latitude ionosphere, including the auroral and subauroral zones, which is important for predicting the conditions of radio wave propagation.
AB - Auroral Ionosphere Model (AIM-E) is designed to calculate chemical content in the high-latitude E region ionosphere and takes into account both the solar EUV radiation and the electron precipitation of magnetospheric origin. The latter is extremely important for auroral ionosphere chemistry especially in disturbed conditions. In order to maximize the AIM-E timing ac-curacy when simulating highly variable periods in the course of geomagnetic storms and sub-storms, we suggest to parameterize the OVATION-Prime empirical precipitation model with the ground-based Polar Cap (PC) index. This gives an advantage to: (1) perform ionospheric simulation with actual input, since PC index reflects the geoeffective solar wind conditions; (2) promptly assess the current geomagnetic situation, since PC index is available in real-time with 1 min resolution. The simulation results of AIM-E with OVATION-Prime (PC) demonstrate a good agreement with the ground-based incoherent scatter radar data (EISCAT UHF, Tromso) and with the vertical sounding data in the Arctic zone during events of intense particle precipitation. The model re-produces well the electron content calculated in vertical column (90–140 km) and critical frequency of sporadic E layer (fOEs) formed by precipitating electrons. The AIM-E (PC) model can be applied to monitor the sporadic E layer in real-time and in the entire high-latitude ionosphere, including the auroral and subauroral zones, which is important for predicting the conditions of radio wave propagation.
KW - Auroral oval
KW - E region of ionosphere
KW - Electron concentration
KW - Electron precipitation
KW - Numerical modeling
KW - PC index
KW - Substorm
KW - electron concentration
KW - ENERGY
KW - FIELD
KW - SPORADIC-E
KW - LAYERS
KW - substorm
KW - E-REGION
KW - auroral oval
KW - electron precipitation
KW - numerical modeling
UR - http://www.scopus.com/inward/record.url?scp=85125636836&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/3b0b49fe-f0d4-3ac4-aa51-b73e2f481058/
U2 - 10.3390/atmos13030402
DO - 10.3390/atmos13030402
M3 - Article
VL - 13
JO - ATMOSPHERE
JF - ATMOSPHERE
SN - 2073-4433
IS - 3
M1 - 402
ER -
ID: 93301235