Session D5: Atmospheric Modeling and Mitigation with GNSS and LEO-PNT Systems

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Date: Friday, September 18, 2026
Time: 8:30 a.m. - 12:15 p.m.
Location: Windsong 5-6
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Wednesday, September 16.

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.
8:35	Which GPS Signal Loses Lock Most Often During Scintillation: L1, L2C, or L5? A January 2026 Storm Case Study Andrew K. Sun, Brian Breitsch, Y. Jade Morton, University of Colorado Boulder; Waqar Younas, Boston University; Kshitija Bharat Deshpande, Embry-Riddle Aeronautical University
8:57	Identification of Dispersive GNSS Occultation Arcs Observed by LuGRE Along the Blue Ghost Mission 1 Trajectory Alex Minetto, Francesco Fiorina, Lorenzo Sciacca, Simone Zocca, Andrea Nardin, Marco Guerra, Rebecca Ghidoni, Claudio Cesaroni, Fabio Dovis, Dept. of Electronics and Telecommunications (DET) - Politecnico di Torino, Istituto Nazionale di Geofisica e Vulcanologia (INGV)
9:20	Auroral Zone GNSS Scintillation Survey Comparing Solar Maximum of Cycles 24 and 25 Alex English, Karen Ignasi Britto, and Seebany Datta-Barua, Illinois Institute of Technology
9:43	Applying Space Weather Information to GBAS: A Concept for Improved Availability Leonardo Marini-Pereira, Maria Caamano, Daniel Gerbeth, Volker Wilken, Paul David, Sebastian Bernhardt, German Aerospace Center (DLR)
10:05-10:35, Break. Refreshments served outside of session rooms
10:40	Enhancement of Outer-Grid Ionospheric Correction Using Adaptive k-NN Regression with the Obliquity Factor and DCB-Corrected Undifferenced STEC Young-Woo Jeon, Department of Geoinformatic Engineering, Inha University; Kwan-Dong Park, Department of Geoinformatic Engineering, Inha University & PPSOL Inc.
11:03	Ionospheric Scintillation Modeling for LEO-Transmitted Signals: Limits of the Parabolic Propagation Approximation Andrew K. Sun, Brian Breitsch, Jade Morton, Charles Rino, University of Colorado Boulder
11:26	Near-Real-Time Radio Backpropagation for Ionospheric Phase-Screen Retrieval from GNSS Scintillation Observations Rodrigo Florindo, Aeronautics Institute of Technology (ITA), German Aerospace Center (DLR); Rubem Pacelli, Aeronautics Institute of Technology (ITA), Federal University of Cear´a (UFC); Martin Kriegel, German Aerospace Center (DLR); Felix Antreich, Aeronautics Institute of Technology (ITA)
11:48	MADOCA-PPP Assistance Method using Ionospheric Delay Correction via FCNN Koshiro Achioku, Masaya Yamamoto, Tomoyuki Egashira and Yukihiro Kubo, Ritsumeikan University
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.	Bootstrapped Tracking of LEO Satellite Signals for Opportunistic PNT and Space Weather Study Chun Yang, QuNav, Y.T. Jade Morton, Harrison Bourne, Jason Li, Steve Taylor, University of Colorado at Boulder; Andrey Soloviev, QuNav
2.	Giftet® 4-Parameter Ionospheric Channel Model: Part 2—Theory and Simulations Ilir F. Progri, Giftet Inc.

On-Demand Presentations Pre-recorded presentations will become available for viewing by registered attendees on Wednesday, September 16.
	A Research of the Relationship between GNSS PWV and Thunderstorm Activity in Hong Kong Jing Wang, Wenjuan Jian, Wenjie Huang, School of Information Engineering, Nanchang University; Min Yu, College of Computer Software, Jiangxi Normal University; Jian Xiong, School of Advanced Manufacturing, Nanchang University; Hang Guo, School of Information Engineering, Nanchang University; Qun Tian, Guangzhou Institute of Tropical and Marine Meteorology
	Sequential Westward Ionospheric Scintillation Onset Pattern: Potential for Low-Latitude GNSS Disruption Forecasting Tong Liu, Xiaolong Mi, Wu Chen, The Hong Kong Polytechnic University

Awards Luncheon • 12:15 p.m. - 1:30 p.m. • Lunch served until 12:30 p.m.; late arrivals will not be served

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