The mechanism for GNSS‐based kinematic positioning degradation at high‐latitudes under the March 2015 great storm
W Nie, A Rovira‐Garcia, M Li, Z Fang, Y Wang… - Space …, 2022 - Wiley Online Library
In this study, we focus on the kinematic precise point positioning (PPP) solutions at high‐
latitudes during the March 2015 great geomagnetic storm. We aim to discover the …
latitudes during the March 2015 great geomagnetic storm. We aim to discover the …
Empirical data assimilation for merging total electron content data with empirical and physical models
An accurate estimation of ionospheric variables such as the total electron content (TEC) is
important for many space weather, communication, and satellite geodetic applications …
important for many space weather, communication, and satellite geodetic applications …
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 …
capabilities, with the emphasis in the efforts relevant to electron density variability. The …
3‐D ionospheric imaging over the South American region with a new TEC‐based ionospheric data assimilation system (TIDAS‐SA)
This study has developed a new TEC‐based ionospheric data assimilation system for 3‐D
regional ionospheric imaging over the South American sector (TIDAS‐SA)(45° S–15° N, 35° …
regional ionospheric imaging over the South American sector (TIDAS‐SA)(45° S–15° N, 35° …
A‐CHAIM: Near‐real‐time data assimilation of the high latitude ionosphere with a particle filter
B Reid, DR Themens, A McCaffrey… - Space …, 2023 - Wiley Online Library
Abstract The Assimilative Canadian High Arctic Ionospheric Model (A‐CHAIM) is an
operational ionospheric data assimilation model that provides a 3D representation of the …
operational ionospheric data assimilation model that provides a 3D representation of the …
Next-decade needs for 3-D ionosphere imaging
Accurately imaging the 3-D ionospheric variation and its temporal evolution has always
been a challenging task for the space weather community. Recent decades have witnessed …
been a challenging task for the space weather community. Recent decades have witnessed …
The potential of LEO-PNT mega-constellations for Ionospheric 3-D imaging: a Simulation Study
The rapid increase of the number of low Earth orbit (LEO) satellites brings up the possibility
of LEO satellite missions transmitting dedicated signals for positioning, navigation, and …
of LEO satellite missions transmitting dedicated signals for positioning, navigation, and …
Global Three‐Dimensional Ionospheric Tomography by Combination of Ground‐Based and Space‐Borne GNSS Data
The inhomogeneous distribution of Global Navigation Satellite System (GNSS) data is a
significant problem for global GNSS computerized ionospheric tomography (CIT). By …
significant problem for global GNSS computerized ionospheric tomography (CIT). By …
The four‐dimensional variational neustrelitz electron density assimilation model: NEDAM
With the development of the Global Navigation Satellite System (GNSS) and regional
augmentation systems, the influence of the ionosphere on GNSS signals is becoming …
augmentation systems, the influence of the ionosphere on GNSS signals is becoming …
Challenges of global-scale ionospheric tomography using GNSS: A brief overview
FS Prol - 2022 3rd URSI Atlantic and Asia Pacific Radio …, 2022 - ieeexplore.ieee.org
Challenges of Global-Scale Ionospheric Tomography using GNSS: A brief overview Page 1 3rd
URSI AT-AP-RASC, Gran Canaria, 29 May – 3 June 2022 Challenges of Global-Scale …
URSI AT-AP-RASC, Gran Canaria, 29 May – 3 June 2022 Challenges of Global-Scale …