Disentangling ionospheric refraction and diffraction effects in GNSS raw phase through fast iterative filtering technique

H Ghobadi, L Spogli, L Alfonsi, C Cesaroni, A Cicone… - GPS Solutions, 2020 - Springer
We contribute to the debate on the identification of phase scintillation induced by the
ionosphere on the global navigation satellite system (GNSS) by introducing a phase …

Review of environmental monitoring by means of radio waves in the polar regions: From atmosphere to geospace

L Alfonsi, N Bergeot, PJ Cilliers, G De Franceschi… - Surveys in …, 2022 - Springer
Abstract The Antarctic and Arctic regions are Earth's open windows to outer space. They
provide unique opportunities for investigating the troposphere–thermosphere–ionosphere …

Investigation of ionospheric small‐scale plasma structures associated with particle precipitation

F Enengl, L Spogli, D Kotova, Y **, K Oksavik… - Space …, 2024 - Wiley Online Library
We investigate the role of auroral particle precipitation in small‐scale (below hundreds of
meters) plasma structuring in the auroral ionosphere over the Arctic. In this scope, we …

Adaptive phase detrending for GNSS scintillation detection: A case study over Antarctica

L Spogli, H Ghobadi, A Cicone, L Alfonsi… - … and Remote Sensing …, 2021 - ieeexplore.ieee.org
We aim at contributing to the reliability of the phase scintillation index on Global Navigation
Satellite System (GNSS) signals at high-latitude. To the scope, we leverage on a recently …

Statistical models of the variability of plasma in the topside ionosphere: 2. Performance assessment

L Spogli, Y **, J Urbář, AG Wood… - Journal of Space …, 2024 - swsc-journal.org
Statistical models of the variability of plasma in the topside ionosphere based on the Swarm
data have been developed in the “Swarm Variability of Ionospheric Plasma”(Swarm-VIP) …

Nightside high‐latitude phase and amplitude scintillation during a substorm using 1‐second scintillation indices

Y Nishimura, T Kelly, PT Jayachandran… - Journal of …, 2023 - Wiley Online Library
We examined evolution of Global Positioning System (GPS) scintillation during a substorm
in the nightside high latitude ionosphere, using 1‐s phase and amplitude scintillation indices …

[HTML][HTML] Electron density fluctuations from Swarm as a proxy for ground-based scintillation data: A statistical perspective

D Kotova, Y **, L Spogli, AG Wood, J Urbar… - Advances in Space …, 2023 - Elsevier
The Swarm satellite mission has been used for numerous studies of the ionosphere. Here
we use a global product, based on electron density measurements from Swarm that …

Leveraging machine learning techniques and GPS measurements for precise TEC rate predictions

S Tete, Y Otsuka, WK Zahra, A Mahrous - GPS Solutions, 2024 - Springer
This study explores machine learning models to gain insights into dynamics of ionospheric
irregularities over geodetic receivers in Mbarara (0.60° S, 30.74° E) and Kigali (1.94° S …

[HTML][HTML] IONORING: Real-time monitoring of the total electron content over Italy

C Cesaroni, L Spogli, G De Franceschi - Remote Sensing, 2021 - mdpi.com
IONORING (IONOspheric RING) is a tool capable to provide the real-time monitoring and
modeling of the ionospheric Total Electron Content (TEC) over Italy, in the latitudinal and …

Ionosphere variability II: Advances in theory and modeling

I Tsagouri, DR Themens, A Belehaki, JS Shim… - Advances in Space …, 2023 - Elsevier
This paper aims to provide an overview on recent advances in ionospheric modeling
capabilities, with the emphasis in the efforts relevant to electron density variability. The …