This repository contains all of the scripts and post-processing tools used 'Nine-Year L-band InSAR Time Series of Tectonic and Non-tectonic Surface Deformation in Northern California'. It is organized to generate figures, perform geospatial and time-series analyses, and reproduce all results in the article.
Co-registered stacks of interferograms were produced with the ALOS-2 ScanSAR stack processing tools in isce-2 https://github.com/isce-framework/isce2/blob/a492b8d76fc91fa82a100458b1714120b0fae090/contrib/stack/alosStack/alosStack_tutorial.txt
This codebase supports the post-processing and analysis of ALOS-2 ScanSAR data to produce 3D surface deformation maps, time-series plots, and statistical summaries for Northern California. It includes:
- Preparing GNSS velocities from UNR daily solutions
- Prepares files for analysis
- 3D Decompositions
- InSAR Validation between GNSS, Sentinel-1 and ALOS-2 results
- Time-series extraction for landslides and Central Valley
- Visualization with PyGMT
The work demonstrates how L-band ScanSAR can reveal multi-scale tectonic and non-tectonic deformation across Northern California. Key applications include:
- Identifying transient deformation events (landslides, aquifer changes)
- Mapping long‐wavelength regional uplift/subsidence
- Validating InSAR velocities against continuous GNSS stations and Sentinel-1 time series