Session A4: Atmospheric Effects, GNSS Remote Sensing, and Scientific Applications

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Date: Thursday, January 29, 2026
Time: 8:30 a.m. - 12:15 p.m.
Location: Royal Ballroom DF
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Tuesday, January 28.

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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 virtual attendees.
8:35	Tropospheric Scintillation Fading on L-Band Signals Using Mountaintop-Based Radio Occultation Measurements     Neeti Sonth and Jade Morton, University of Colorado Boulder Peer Reviewed
8:57	Detection and Characterization of Low-Grazing-Angle GNSS-R Observations from PlanetiQ Satellites     Hyeyeon Chang and Y. T. Jade Morton, The University of Colorado Boulder Peer Reviewed
9:20	Monitoring the Dynamic Motion of Landfast Ice in Alaska Using GNSS-Interferometric Reflectometry (GNSS-IR)     Jaclyn J. Bohn, Jihye Park, Oregon State University; Andrew Mahoney, Emily Fedders, University of Alaska Fairbanks Peer Reviewed
9:43	A Rigorous Framework for the Statistical Characterization of Errors in Broadcast GNSS Ionospheric Model     Angela Aragon Angel, Sebastiano Buson, Christian Timote Bejarano, Adria Rovira Garcia, Jose Miguel Juan Zornoza, Jaume Sanz Subirana, Universitat Politecnica de Catalunya; Gerhard Berz, Eurocontrol Peer Reviewed
10:05-10:35, Break. Refreshments served outside of session rooms
10:40	Recurring Ionospheric Gradients, Irregularities, and Depletions Over New Zealand     Jeremy Ovadia, Eric Altshuler, Sequoia Research Corporation; Sean MacCallum, Pat Reddan, Zeta Associates; Dave Collett, Land Information New Zealand Peer Reviewed
11:03	Weighted Dilution of Precision Estimation for GNSS Positioning Under Ionospheric Scintillation in the Canadian Arctic     Sophie LeGresley, Richard B. Langley, University of New Brunswick Peer Reviewed
11:26	Assessing Grazing GNSS-R Ionospheric Measurements Over Equatorial Oceans Using IRI and JASON TEC     Brian Breitsch, Madeline Evans, Jade Morton, University of Colorado, Boulder
11:48	Verification of Orbit and Clock Determination Algorithm for Regional Navigation Satellite System using Actual Measurements     Jaeuk Park and Changdon Kee, Department of Aerospace Engineering and SNU-IAMD, Seoul National University Peer Reviewed

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