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Modelling of the topside ionosphere effective plasma scale height through CSES-01 satellite in-situ electron density observations

Urheber*innen

Pignalberi,  Alessio
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Pezzopane,  Michael
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Alberti,  Tommaso
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Consolini,  Giuseppe
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

D'Angelo,  Giulia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

De Michelis,  Paola
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Giannattasio,  Fabio
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Piersanti,  MIrko
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Tozzi,  Roberta
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Pignalberi, A., Pezzopane, M., Alberti, T., Consolini, G., D'Angelo, G., De Michelis, P., Giannattasio, F., Piersanti, M., Tozzi, R. (2023): Modelling of the topside ionosphere effective plasma scale height through CSES-01 satellite in-situ electron density observations, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1081


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018175
Zusammenfassung
The topside ionosphere embraces the region extending from the F2-layer electron density peak to the overlying plasmasphere. In this work, we aim at characterizing the effective plasma scale height (H0) above the F2-layer peak using in-situ electron density (Ne) observations by Langmuir Probes (LPs) on the China Seismo-Electromagnetic Satellite (CSES-01). The International Reference Ionosphere (IRI) model and COSMIC-1 radio occultation measurements provide additional information. CSES-01 is a sun-synchronous satellite with an orbital inclination of 97.4° and an altitude of ~500 km, with descending and ascending nodes at ~14:00 local time (LT) and ~02:00 LT, respectively. Calibrated CSES-01 LPs Ne data from 2019-2021 provide information in the topside ionosphere, whereas IRI provides the Ne values at the F2-layer peak (NmF2) for the same time, latitude, and longitude sounded by CSES-01; COSMIC-1 data are instead used to infer the vertical gradient of the effective plasma scale height in the topside ionosphere. The two Ne set of values are used as anchor points to infer H0 by assuming a linear scale height in the topside representation given by the NeQuick model. By exploiting the CSES-01 dataset for the years 2019-2021 we deduced the global behavior of H0 for daytime (~14:00 LT) and nighttime (~02:00 LT) conditions, different seasons, and for low solar activity conditions. Results from CSES-01 observations are compared and validated with those from COSMIC-1 radio occultation and Swarm B satellite measurements, for similar diurnal, seasonal, and solar activity conditions.