Session F4: Atmospheric Effects on GNSS and LEO-PNT Systems

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Date: Thursday, September 11, 2025
Time: 1:45 p.m. - 5:30 p.m.
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Wednesday, September 10.

In-Person Presentations These presentations will be given in-person at the conference. Presenters will provide a pre-recorded presentation for on-demand viewing by all registered attendees.
1:50	Impact of the 25th Solar Cycle Peak on the Galileo High Accuracy Service Haroldo Antonio Marques, Military Engineering Institute; Melania Susi, Topcon Positioning System Inc.; Daniele Borio, European Commission, Joint Research Centre (JRC); Joao Francisco Galera Monico, São Paulo State University (UNESP); Jihye Park, Oregon State University; Kinga Wezka, Warsaw University of Technology
2:12	Investigating the Impact of Geomagnetic Storms on LEO Satellites at Different Orbital Altitudes: Case Study in 2024 May Storm Wei Li and Y. Jade Morton, University of Colorado Boulder
2:35	Solar Cycle 25: Impact on GNSS Correction Services Near the Geomagnetic Equator in Brazil Hunaiz Ali, Kendall Ferguson, Landon Urquhart and Rodrigo Leandro, u-blox
2:58	Characterization of Ionospheric Scintillation using Deep Learning Models Rubem Vasconcelos Pacelli, Department of Physics, Polytechnic University of Catalonia (UPC), Teleinformatics Department, Federal University of Ceará (UFC); Rodrigo de Lima Florindo, Felix Antreich, Department of Telecommunications, Aeronautics Institute of Technology; André Lima Ferrer de Almeida, Teleinformatics Department, UFC; Angela Aragón-Àngel, Adrià Rovira García, Department of Physics, UPC
3:25 - 3:55, Break. Refreshments in Exhibit Hall
4:00	Development of GBAS Error Models for Phase Transition-Induced Residual Errors under Ionospheric Scintillation Andrew K. Sun, Jiyun Lee, Korea Advanced Institute of Science and Technology; Sam Pullen, Stanford University; Maria Caamano, German Aerospace Center (DLR)
4:23	Machine Learning Detection of EPBs in GOLD Airglow Images Towards GNSS-RO Back Propagation Validation Carles Quilis Alfonso, Saleh Javadi, Blekinge Institute of Technology; Vinícius Ludwig-Barbosa, Danish Meteorological Institute
4:46	Slant TEC Prediction During Ionospheric Disturbed Conditions at Low Latitudes in Support of PPP Fiona Luhrmann, Jihye Park, and Weng-Keen Wong, Oregon State University
5:08	Tropospheric Scintillation Fading on L-Band Signals using Mountaintop-Based Radio Occultation Measurements Neeti Sonth and Jade Morton, University of Colorado Boulder
Alternate Presentations Alternate presentations may be given in-person at the conference if other authors are unable to present. Alternate Presenters will provide a pre-recorded presentation for on-demand viewing by all registered attendees.
1.	Amplitude Scintillations Revealed in the Auroral Zone by Computing High-Rate Scintillation Indices Gytis Blinstrubas and Seebany Datta-Barua, Illinois Institute of Technology
2.	Development of a Simplified Model to Characterize and Introduce Scintillation Effects into SBAS Reference Scenarios África Hernando Vigara, Daniel Gutiérrez Reyes, and Ramón Sánchez-Verdejo Cidfuentes, GMV
3.	SBAS in Tropical Regions: A Study on GAGAN Availability and its Dependency on Ionospheric Metrics Rosa Alòs I Florit, Dídac Rodríguez Solbas, and Ramón Sánchez-Verdejo Cidfuentes, GMV
4.	Advanced Kalman Filter Carrier Tracking: Performance Assessment Under Two Ionospheric Scintillation Models Rodrigo Florindo, Aeronautics Institute of Technology (ITA), Department of Telecommunications; Rubem Pacelli, Teleinformatics Department, Federal University of Ceará (UFC); Polytechnic University of Catalonia (UPC); Felix Antreich, Department of Telecommunications, Aeronautics Institute of Technology (ITA); Antonio Macilio Pereira de Lucena, Lumina Institute of Research, Innovation and Applied Technology

On-Demand Presentation Pre-recorded presentations will become available for viewing by registered attendees on Wednesday, September 10.
	Development of a West Point Distributed Space Weather Array with Applications to a G5 Geomagnetic Storm Daniel Klotz, Joanna Halfhill, Jason Derr, Diana Loucks, Stephen Hamilton, Preston Poirier, and Sidharth Hegde, United States Military Academy

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