New Ways to Modelling and Predicting Ionosphere Variables

SM Radicella - Atmosphere, 2023 - mdpi.com
The new way of thinking science from Newtonian determinism to nonlinear unpredictability
and the dawn of advanced computer science and technology can be summarized in the …

Study of Ionospheric Bending Angle and Scintillation Profiles Derived by GNSS Radio-Occultation with MetOp-A Satellite

FS Prol, MM Hoque, M Hernández-Pajares, L Yuan… - Remote Sensing, 2023 - mdpi.com
In this work, a dedicated campaign by MetOp-A satellite is conducted to monitor the
ionosphere based on radio-occultation (RO) measurements provided by the onboard GNSS …

Machine learning approach for ionospheric scintillation prediction on ROTI parameter over the African region during solar cycle 24

S Tete, Y Otsuka, WK Zahra, A Mahrous - Advances in Space Research, 2023 - Elsevier
Scintillation is a dynamic phenomenon of the earth's ionosphere that adversely affects
satellite-based communication and navigation systems. It is characterized by rapid …

Ionospheric Error Models for Satellite-Based Navigation—Paving the Road towards LEO-PNT Solutions

M Imad, A Grenier, X Zhang, J Nurmi, ES Lohan - Computers, 2023 - mdpi.com
Low Earth Orbit (LEO) constellations have recently gained tremendous attention in the
navigational field due to their larger constellation size, faster geometry variations, and higher …

Topside ionospheric TEC modeling using multiple LEO satellites based on genetic algorithm-optimized machine learning models

Y Han, L Wang, R Chen, W Fu, T Li, G Liu, H Zhou - GPS Solutions, 2024 - Springer
Abstract Machine learning approaches are introduced to model the three-dimensional
topside total electron content (TEC) using multiple low Earth orbit (LEO) satellites. The three …

Calibration of Swarm plasma densities overestimation using neural networks

A Smirnov, Y Shprits, H Lühr, A Pignalberi… - Space …, 2024 - Wiley Online Library
Recent studies have shown that the measurements of Langmuir Probes (LPs) onboard
ESA's Swarm mission overestimate ion densities on the nightside by up to 50%. The …

[HTML][HTML] Validation of the IRI-2020 topside ionosphere options through in-situ electron density observations by low-Earth-orbit satellites

A Pignalberi, D Bilitza, P Coïsson… - Advances in Space …, 2024 - Elsevier
The topside ionosphere extends from the F2-layer peak, where the electron density reaches
its absolute maximum in the ionosphere, to the overlying plasmasphere and …

[HTML][HTML] Validation of the NeQuick model, Ensemble Kalman filter and SMART+ based estimations of the topside ionosphere and plasmasphere

T Gerzen, D Minkwitz, M Schmidt, S Rudenko - Advances in Space …, 2024 - Elsevier
In this work, we analyse the performance of an Ensemble Kalman filter (EnKF) approach, the
simultaneous multiplicative column normalized method SMART+ and the NeQuick model to …

Machine learning based modeling of thermospheric mass density

Q Pan, C Xiong, H Lühr, A Smirnov, Y Huang… - Space …, 2024 - Wiley Online Library
In this study, we propose a machine learning based approach to construct an empirical
model of thermospheric mass densities, based on the MultiLayer Perceptron and bi …

Modeling the Topside Ionosphere Effective Scale Height through In Situ Electron Density Observations by Low-Earth-Orbit Satellites

A Pignalberi, M Pezzopane, T Alberti, I Coco… - Universe, 2023 - mdpi.com
In this work, we aim to characterize the effective scale height at the ionosphere F2-layer
peak (H 0) by using in situ electron density (N e) observations by Langmuir Probes (LPs) …