InSAR.dev—Python Ecosystem for Interferometric Synthetic Aperture Radar

Components

Package	Description	License
insardev	Core interferometric processing and analysis	InSARdev-SAL-1.0
insardev_pygmtsar	Sentinel-1 SLC preprocessing	BSD 3-Clause
insardev_toolkit	Utility functions and helper tools	BSD 3-Clause

Features

• Per-burst processing — each Sentinel-1 TOPS burst processed independently on a geocoded grid, no frame stitching required
• Geometric coregistration — bursts aligned to a reference via radar-to-geographic transforms with differential topo phase correction between reference and repeat geometries
• Cloud-native storage — Zarr v3 with chunked arrays, works with local disk or GCS/S3 via fsspec
• GPU-accelerated — interferogram generation, filtering, detrending, phase unwrapping (1D and 2D) on Apple MPS and NVIDIA CUDA
• Time series analysis — SBAS and PSI with least-squares and STL decomposition
• Dual-polarization support — all polarization channels (VV+VH or HH+HV) processed together for PolSAR analysis
• Ascending and descending on the same grid — both orbit directions processed in common geocoded coordinates for straightforward vertical and east-west displacement decomposition
• Per-pixel incidence geometry — elevation-corrected incidence from spherical Earth model, no central-point approximation
• Integrated data access — download Sentinel-1 bursts, precise orbits, DEM, land mask, and map tiles
• Runs anywhere — Colab, GitHub runners, Docker containers, and even Raspberry Pi 4 & 5

Examples

Central Türkiye Earthquakes (2023). Interferogram covering two consecutive Sentinel-1 scenes (56 bursts) with GPU-accelerated phase unwrapping.

Imperial Valley Subsidence, CA USA (2015). SBAS velocity map from a Sentinel-1 time series stack. Interactive result: Imperial_Valley_2015.html. Uses the same bursts as the GMTSAR 'Sentinel-1 TOPS Time Series' example .

Golden Valley Subsidence, CA USA (2021). SBAS velocity map detecting subsidence exceeding 5 cm/year near Antelope Valley Freeway in Santa Clarita, CA. Reproduces results from the EarthDaily Sentinel-1 Technical Series.

Erzincan Elevation, Türkiye (2019). DEM generation from a single Sentinel-1 interferometric pair. Reproduces the ESA tutorial DEM generation with Sentinel-1 IW.

License

This repository contains components with different licenses:

• insardev/ - InSAR.dev Source-Available License (see insardev/LICENSE)
• insardev_pygmtsar/ - BSD 3-Clause License (see insardev_pygmtsar/LICENSE)
• insardev_toolkit/ - BSD 3-Clause License (see insardev_toolkit/LICENSE)

For Commercial Use of the insardev package, see insardev/SUBSCRIBE.

Contact

• Author: Aleksei Pechnikov
• Email: alexey@pechnikov.dev
• ORCID: https://orcid.org/0000-0001-9626-8615

Bug Reports

Bug reports and suggestions are welcome via the project's issue tracker.