Solid Earth Sciences (S)
Session Sub-category Geodesy(GD)
Session ID S-GD03
Title Advances in Geodetic Monitoring of Crustal Dynamics, Geohazards, and Environmental Changes
Short Title Advances in Geodetic Monitoring
Main Convener Name Chi-Hsien Tang
Affiliation International Research Institute of Disaster Science, Tohoku University
Co-Convener 1 Name Takeshi Sagiya
Affiliation Disaster Mitigation Research Center, Nagoya University
Co-Convener 2 Name Ruey-Juin Rau
Affiliation National Cheng Kung University
Co-Convener 3 Name Ray Y Chuang
Affiliation Department of Geography, National Taiwan University
Session Language
E
Scope
Remarkable developments in geodetic satellites and remote sensing technologies, including GNSS, InSAR, gravimetry, and altimetry, have provided powerful tools for studying a wide spectrum of tectonic processes, ranging from earthquake nucleation, tsunami propagation, volcanism, to crustal deformation across plate boundaries. In recent years, advances in seafloor geodesy based on acoustic ranging and pressure sensors have further enhanced our ability to detect motion within submarine active fault systems and subduction zones. The growing diversity of modern geodetic data has also driven continuous innovation in data processing and modeling methods.

This session seeks contributions that advance our understanding of crustal deformation processes, improve geodetic modeling techniques, or demonstrate innovative applications of geodesy for studying natural hazards and environmental change. We invite studies that employ geodetic observations to address issues related to datums/reference frames, positioning, engineering, geodynamics, Earth surface processes, and environmental monitoring. Investigations focusing on recent major earthquakes and other geological events by integrating other multidisciplinary observations, such as field surveys, seismicity, strainmeters, tiltmeters, and tide gauges, are particularly welcome. We warmly encourage early career scientists at the graduate and postdoctoral levels, especially non-native English speakers, to share their work in our session.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 27 AM1
9:00 - 9:15 SGD03-01 Coseismic slip distribution of the 29 July 2025 Mw 8.7-8.8 Kamchatka earthquake constrained by GNSS, InSAR, and tsunami observations Chi-Hsien Tang
9:15 - 9:30 SGD03-02 Coseismic and early postseismic gravity changes of the 2025 Jul. 29 Mw8.8 Kamchatka earthquake from GRACE-FO by high time-resolution data analysis Kosuke Heki
9:30 - 9:45 SGD03-03 Estimation of spatiotemporal changes in interplate coupling in the Hyuga-nada using three decades of GNSS data Takuya NISHIMURA
9:45 - 10:00 SGD03-04 On the establishment of a GNSS-based crustal deformation model:an essential link between Taiwan Terrestrial Reference Frame and Taiwan Geodetic Datum Yi-Hsuan Lee
10:00 - 10:15 SGD03-05 Constraining mantle rheology with next-generation satellite gravimetry: Spatial signatures of nonlinearity in great strike-slip earthquakes Kazuma Nakakoji
10:15 - 10:30 SGD03-06 Simulating GNSS-derived TEC to uncover the rupture complexity of the 2024 Mw7.5 Noto earthquake Yoshihiro Kaneko
Oral Presentation May 27 AM2
10:45 - 11:00 SGD03-07 A PSInSAR–GNSS Approach for Land Motion and Subsidence Surveillance in Taiwan Kuo-Hsin Tseng
11:00 - 11:15 SGD03-08 Application of PS-InSAR Technology in Monitoring the Stability of Offshore Wind Turbine Foundations Yu-Siang Huang
11:15 - 11:30 SGD03-09 Using DSInSAR to Investigate Surface Deformation of the Tatun Volcano Group in Taiwan Chi-Chih Lee
11:30 - 11:45 SGD03-10 Deep Learning–Based Mitigation of Atmospheric Noise in InSAR Unwrapped Phase Maps Li Yu Chen
11:45 - 12:00 SGD03-11 Revealing spatiotemporal heterogeneity of subsidence recovery following long-term land subsidence in Jakarta Metropolitan Region, Indonesia Muhammad Yunus
12:00 - 12:15 SGD03-12 Nationwide near-surface ground deformation mosaics from multi-year synthetic aperture radar observations Sergey V Samsonov
Presentation No Title Presenter
Poster Presentation May 27 PM3
SGD03-P01 Surface Deformation Governed by Mobile Shale and Active Faults in Southwestern Taiwan Kuo-En Ching
SGD03-P02 A theoretical estimation of long-term interseismic gravity change in the Japan subduction zone Lili Ge
SGD03-P03 Accuracy Assessment of Automatic Shoreline Extraction from Sentinel-2 Imagery Using Multiple Water Indices Jia-Jyun Wong
SGD03-P04 Strain Energy Build-Up in Southwest Japan: A Numerical Experiment Angela Meneses-Gutierrez
SGD03-P05 Partitioning deformation between mobile shale and thrust fault beneath the Takangshan anticline in SW Taiwan: implications for earthquake potential Shih-Han HSIAO
SGD03-P06 A Study on Scan-to-BIM Workflows for Existing Buildings Bo-Chuan Su
SGD03-P07 Tectonic implications of time-dependent crustal deformation in the central Niigata region, central Japan, revealed by dense GNSS Observation Takeshi Sagiya
SGD03-P08 Estimating slip-deficit rates for active structures in Taiwan by using geodetically-constrained strain rates and the backslip model ZI XIN LEE
SGD03-P09 Surface strain rates and implications for seismic hazards in Taiwan Ray Y Chuang
SGD03-P10 Standardizing Uncertainty with GNSS for Reproducible 2.5D Weighted Fusion of Sentinel-1 and ALOS-2 Velocities workflow Lishiue Chen
SGD03-P11 Tracing Climate-Related Surface Processes in Northwest Italy through InSAR Ground Motion Analysis Francesca Silverii