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  3D ionospheric imaging for space weather monitoring at low-latitudes

Prol, F., Camargo, P., Muella, M., Hoque, M., Hernández-Pajares, M., Ana, S., Bhuiyan, Z., Kaasalainen, S. (2023): 3D ionospheric imaging for space weather monitoring at low-latitudes, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0363

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016118 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016118_2
Genre: Conference Paper

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 Creators:
Prol, Fabricio1, Author
Camargo, Paulo1, Author
Muella, Marcio1, Author
Hoque, Mainul1, Author
Hernández-Pajares, Manuel1, Author
Ana, Souza1, Author
Bhuiyan, Zahidul1, Author
Kaasalainen, Sanna1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: Three-dimensional (3D) ionospheric imaging at Low-Latitudes is challenging due to the high ionospheric variability and dynamics in the region. The region is characterized by the presence of the Equatorial Ionization Anomaly (EIA), plasma bubbles, layered structures, and strong vertical drifts upwards during the evening pre-reversal enhancement. Aiming to better understand the ionosphere at low latitudes, this study shows the latest developments conducted by the authors to map the region with 3D inversion algorithms based on Global Navigation Satellite Systems (GNSS), ionosondes, GNSS radio-occultation, and empirical models, such as the International Reference Ionosphere (IRI). We address the capabilities of the developed 3D imaging methods to disclose the main morphologies and dynamics of the ionospheric electron density in the region. Limitations are also discussed since data assimilation schemes are still ill-conditioned for a complete 3D reconstruction. Based on the experiments conducted by the authors, the main conclusions have outlined that better 3D representation of the ionosphere in the region of particular interest requires three main improvements: 1) denser GNSS networks on ground and space; 2) better representation by empirical models to be used as background to the inversion technique, mainly to better represent the plasmasphere, topside ionosphere, and during the pre-reversal enhancements; and 3) ionosphere sounding using GNSS or beacon like signals transmitted by Low Earth Orbit (LEO) satellites.

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Language(s): eng - English
 Dates: 2023
 Publication Status: Finally published
 Pages: -
 Publishing info: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-0363
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -