Research

Research

The Geodesy Lab research focuses on measuring and modeling Earth surface deformation using geodetic and remote sensing methods. Current research areas include earthquakes, plate motion, sea level rise, subsidence, and seafloor geodesy.


EARTHQUAKES

Strain accumulation & release on subduction zone faults

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TECHNIQUES AND MODELING

GPS, satellite InSAR, ground-based radar, UAV and lidar, & deformation modeling

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SEA LEVEL RISE

Vertical land motion at the margins of Greenland, Iceland & Svalbard

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PLATE MOTION

Present-day plate velocities & Andean mountain building

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SUBSIDENCE

Urban & coastal subsidence from groundwater withdrawal & soil oxidation

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SEAFLOOR GEODESY

SUBGEO: shallow underwater buoys for measuring offshore megathrust strain

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Data Sharing

UAV-LiDAR data partially from Van Alphen et al. (2026, in revision); USACE-funded. 

Data from "Slow slip events in the early earthquake cycle, Voss et al., 2017 

10-m DEM from "High-resolution DEM generation from spaceborne and terrestrial remote sensing data for improved volcano hazard assessment - a case study at Nevado del Ruiz, Colombia , Deng et al., 2019".  

Python scripts developed to merge multiple DEM point clouds in "High-resolution DEM generation from spaceborne and terrestrial remote sensing data for improved volcano hazard assessment - a case study at Nevado del Ruiz, Colombia , Deng et al., 2019 

Jupyter notebook for fault slip modeling based on InSAR data for Monte Cristo Range earthquake as well as Hypo-relocated aftershocks. , Sadeghi Chorsi et al., 2021 

Videos

Slow Slip and Tsunami Forecasts 

Improving Tsunami Forecasts  

Structure from Motion 3D Point Cloud 

USF SUBGEO Drone Footage

Kilauea Volcano Monitoring with GPRI